Karymsky

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  • Primary Volcano Type
  • Last Known Eruption
  • 54.05°N
  • 159.45°E

  • 1536 m
    5038 ft

  • 300130
  • Latitude
  • Longitude

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9 April-15 April 2014

KVERT reported that Vulcanian and Strombolian activity continued at Karymsky during 4-11 April. Satellite images detected a bright thermal anomaly on the volcano daily. Ash plumes drifted 100 km E on 4 April. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)



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9 April-15 April 2014

KVERT reported that Vulcanian and Strombolian activity continued at Karymsky during 4-11 April. Satellite images detected a bright thermal anomaly on the volcano daily. Ash plumes drifted 100 km E on 4 April. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


2 April-8 April 2014

KVERT reported that volcanologists observed Vulcanian and Strombolian activity at Karymsky during 28 March-4 April. Satellite images detected a bright thermal anomaly on the volcano daily. Ash plumes rose to altitudes of 1-2.5 km (3,300-8,200 ft) a.s.l. and drifted 100 km SW and SE during 27-28 and 31 March, and 1-2 April. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


26 March-1 April 2014

KVERT reported that Vulcanian and Strombolian activity at Karymsky continued during 21-28 March. Satellite images detected a bright thermal anomaly on the volcano daily. Ash plumes rose to altitudes of 1.5-2 km (3,300-6,600 ft) a.s.l. and drifted 180 km SW and SE during 20, 24, and 27 March. On 28 March ash plumes rose to altitudes of 2-2.5 km (6,600-8,200 ft) a.s.l. and drifted 100 km ESE. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


19 March-25 March 2014

KVERT reported that Vulcanian and Strombolian activity at Karymsky continued during 14-21 March. Satellite images detected a bright thermal anomaly on the volcano daily. Ash plumes rose to altitudes of 1.5-2 km (3,300-6,600 ft) a.s.l. and drifted 70-150 km SE during 16-18 and 21 March. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


12 March-18 March 2014

KVERT reported that Vulcanian and Strombolian activity at Karymsky continued during 7-14 March. Satellite images detected a bright thermal anomaly on the volcano daily. Ash plumes rose to altitudes of 1.5-2 km (3,300-6,600 ft) a.s.l., and drifted 120 km SW on 12 March and 300 km SE on 13 March. Satellite images detected an ash plume that rose to altitudes of 1.5-2 km (3,300-6,600 ft) a.s.l. and drifted 100 km SE on 17 March. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


5 March-11 March 2014

KVERT reported that Vulcanian and Strombolian activity at Karymsky continued during 28 February-7 March. Satellite images detected a bright thermal anomaly on the volcano daily, and an ash plume that rose to altitudes of 1.5-2 km (3,300-6,600 ft) a.s.l. and drifted 55 km NE on 28 February. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


26 February-4 March 2014

KVERT reported that Vulcanian and Strombolian activity at Karymsky continued during 21-28 February. Satellite images detected a daily thermal anomaly on the volcano, and an ash plume that rose to an altitude of 1.5-2 km (3,300-6,600 ft) a.s.l. and drifted 55 km NE. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


19 February-25 February 2014

KVERT reported that Vulcanian and Strombolian activity at Karymsky continued during 14-21 February. Satellite images detected a daily thermal anomaly on the volcano. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


12 February-18 February 2014

KVERT reported that Vulcanian and Strombolian activity at Karymsky continued during 7-14 February. Satellite images detected a thermal anomaly on the volcano on 12 February; cloud cover obscured views of the volcano on the other days. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


5 February-11 February 2014

KVERT reported that Vulcanian and Strombolian activity at Karymsky continued during 31 January-7 February. Satellite images detected a bright thermal anomaly on 1 February; cloud cover obscured views of the volcano on the other days. Ash plumes drifted 80 km E during 1-2 February. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


29 January-4 February 2014

KVERT reported that Vulcanian and Strombolian activity at Karymsky continued during 24-31 January. Satellite images detected a daily bright thermal anomaly on the volcano. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


22 January-28 January 2014

KVERT reported that Vulcanian and Strombolian activity at Karymsky continued during 17-24 January. Satellite images detected a bright thermal anomaly on the volcano daily, and ash plumes that drifted 110 km E. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


15 January-21 January 2014

KVERT reported that Vulcanian and Strombolian activity at Karymsky continued during 10-17 January. Satellite images detected a bright thermal anomaly on the volcano daily. On 19 January satellite images showed an ash plume that rose to altitudes of 3-3.5 km (8,200-9,800 ft) a.s.l. and drifted 40 km SSE. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


8 January-14 January 2014

KVERT reported that Vulcanian and Strombolian activity at Karymsky continued during 3-10 January. Satellite images detected a bright thermal anomaly on the volcano daily, and an ash plume that drifted 10 km SSE on 8 January. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


1 January-7 January 2014

KVERT reported that Vulcanian and Strombolian activity at Karymsky continued during 27 December 2013-2 January 2014. Satellite images detected a bright thermal anomaly on the volcano daily, and an ash plume that rose as high as 2 km and drifted 120 km SE on 1 January. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


25 December-31 December 2013

KVERT reported that Vulcanian and Strombolian activity at Karymsky continued during 20-27 December. Satellite images detected a bright thermal anomaly on the volcano daily. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


18 December-24 December 2013

KVERT reported that Vulcanian and Strombolian activity at Karymsky continued during 13-20 December. Satellite images detected a bright thermal anomaly on the volcano daily, and gas-and-steam plumes that drifted 30 km SW on 18 December. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


11 December-17 December 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 6-13 December, and Vulcanian and Strombolian activity continued. Satellite images detected a bright thermal anomaly on the volcano daily, and ash plumes that drifted 150 km E and SE during 6-7 and 10 December. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


4 December-10 December 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 29 November-6 December. Vulcanian and Strombolian activity was observed during 2-3 December. Satellite images detected a bright thermal anomaly on the volcano daily. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


27 November-3 December 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 22-29 November. Satellite images detected a bright thermal anomaly on the volcano during 25-26 November, possibly indicating Vulcanian and Strombolian activity. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


20 November-26 November 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 15-22 November. Satellite images detected a daily thermal anomaly on the volcano during 15-19 November, possibly indicating weak Vulcanian and Strombolian activity. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


13 November-19 November 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 8-15 November. Satellite images detected a daily thermal anomaly on the volcano, possibly indicating weak Vulcanian and Strombolian activity. Ash plumes drifted 140 km SE and E during 9-10 November. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


6 November-12 November 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 1-8 November. Satellite images detected a daily bright thermal anomaly on the volcano, possibly indicating weak Vulcanian and Strombolian activity. Ash plumes drifted 184 km SE and E during 2-3 and 5-6 November. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


30 October-5 November 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 24-31 October. During this time period, satellite images also detected a daily bright thermal anomaly on the volcano. Ash plumes drifted 65 km SE and W during 24-26 and 29-30 October. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


23 October-29 October 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 18-25 October. Satellite images detected a daily bright thermal anomaly on the volcano possibly indicating weak Vulcanian and Strombolian activity. Ash plumes drifted 170 km SE on 20 and 22 October. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


16 October-22 October 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 11-18 October. Satellite images showed a thermal anomaly on the volcano on 11 and 16 October, and an ash plume drifting 18 km SE on 12 October. The thermal anomalies and short ash plume possibly indicated Strombolian and weak Vulcanian activity. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


18 September-24 September 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 13-20 September, and weak ash explosions likely occurred. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


11 September-17 September 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 6-13 September. Weak ash explosions likely occurred. Satellite images showed an ash plume drifting 20 km E on 7 September, and a weak thermal anomaly over the volcano during 6 and 10-11 September. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


4 September-10 September 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 30 August-6 September. Weak ash explosions likely occurred. Satellite images detected no activity or were obscured by clouds. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


28 August-3 September 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 23-30 August. Based on seismic interpretation, possible ash plumes rose to an altitude of 3.5 km (11,500 ft) a.s.l. Satellite imagery showed a weak thermal anomaly on the volcano during 26-27 August. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


21 August-27 August 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 16-23 August. Based on seismic interpretation by Kamchatka Branch of Geophysical Services (KBGS; Russian Academy of Sciences), possible ash plumes rose to an altitude of 4 km (13,100 ft) a.s.l. on 19 August and to an altitude of 2 km (6,600 ft) a.s.l. the other days of the week. Satellite imagery showed a weak thermal anomaly on the volcano on 17, 20, and 22 August. On 22 August a pilot observed an ash plume near the volcano; that same day an ash plume was visible in satellite images drifting 30 km ESE at altitudes of 1-1.5 km (3,300-4,900 ft) a.s.l. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


14 August-20 August 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 9-17 August. Based on seismic interpretation, possible ash plumes rose to an altitude of 6 km (19,700 ft) a.s.l. on 15 August and to an altitude of 4 km (13,100 ft) a.s.l. the other days of the week. Satellite imagery showed a weak thermal anomaly on the volcano on 15 August; cloud cover prevented observations on the other days. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


31 July-6 August 2013

KVERT reported that technical problems prevented seismic data collection at Karymsky during 26 July-2 August. A thermal anomaly over the volcano was detected in satellite images during 29-31 July and 1 August; weather conditions prevented views on the other days.

On 6 August at 1035 a plume was observed by helicopter pilots (and confirmed by volcanologists at Tolbachik) rising 6 km (19,700 ft) a.s.l. and drifting 30 km E. An explosion at 1145 generated an ash cloud observed in satellite images that rose to an altitude of 4 km (13,100 ft) and drifted 45 km ESE. The ash cloud was 9 x 14 km. Ash plumes that were observed in satellite images at 1332 and 1512 rose to altitudes of 4.2 km (13,800 ft) and drifted 30 km ESE, and 4 km (13,100 ft) and drifted 80 km ESE, respectively. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


19 June-25 June 2013

KVERT reported that technical problems prevented seismic data collection at Karymsky during 14-21 June. A thermal anomaly over the volcano was detected in satellite images during 17-18 June; weather conditions prevented views on the other days. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


12 June-18 June 2013

KVERT reported that technical problems prevented seismic data collection at Karymsky during 7-14 June. A thermal anomaly over the volcano was detected in satellite images during 8 and 12-13 June. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


5 June-11 June 2013

KVERT reported that technical problems prevented seismic data collection at Karymsky during 31 May-7 June. Satellite data detected a thermal anomaly during 1-3 and 5 June. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


29 May-4 June 2013

KVERT reported that weak seismic activity was detected at Karymsky during 25-26 May; technical problems prevented seismic data collection on the other days during 24-31 May. Satellite data showed a thermal anomaly on the volcano on 25 and 28 May, during periods of clearer weather conditions. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


22 May-28 May 2013

KVERT reported that satellite data showed a thermal anomaly on Karymsky during 21-22 May. Technical problems prevented seismic data collection during 17-24 May. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


1 May-7 May 2013

KVERT reported that satellite data showed a thermal anomaly on Karymsky on 26 April. Two streaks of ash deposits near the volcano were observed during 1-2 May: about 15 km to the W and about 30 km to the NW of the volcano. Technical problems prevented seismic data collection during 26 April-3 May. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


3 April-9 April 2013

KVERT reported that satellite data showed a thermal anomaly on Karymsky on 1 and 3 April. Technical problems prevented seismic data collection. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


20 March-26 March 2013

KVERT reported that weak-to-moderate seismic activity at Karymsky was detected during 15-22 March. Satellite data showed a weak thermal anomaly on the volcano on 18 March. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


13 March-19 March 2013

KVERT reported that weak-to-moderate seismic activity at Karymsky was detected during 8-15 March. Satellite data showed that the volcano was quiet. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


6 March-12 March 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 28 February-7 March. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


27 February-5 March 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 22 February-1 March. Satellite imagery showed a thermal anomaly on the volcano during 21 and 25-28 February. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


20 February-26 February 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 15-22 February. Possible ash explosions during 14, 16, and 19-20 February produced ash plumes that rose 4 km (13,100 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano during 14 and 18-20 February. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


13 February-19 February 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 8-15 February. Possible ash explosions on 11 February produced an ash plume that rose 3.2 km (10,500 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano during 12-13 February. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


6 February-12 February 2013

KVERT reported that weak seismic activity at Karymsky was detected during 1-8 February. Satellite imagery showed a thermal anomaly on the volcano on 31 January and 1 February. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


30 January-5 February 2013

KVERT reported that weak seismic activity at Karymsky was detected during 25 January-1 February. Satellite imagery showed a thermal anomaly on the volcano during 24-25 and 30 January. The Aviation Color Code remained at Orange.

Based on information from the Yelizovo Airport (UHPP), the Tokyo VAAC reported that on 30 January an ash plume rose to an altitude of 2.7 km (9,000 ft) a.s.l. and drifted SE. An ash plume was not detected in satellite imagery.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


23 January-29 January 2013

KVERT reported that weak-to-moderate seismic activity at Karymsky was detected during 18-25 January, indicating that possible ash plumes rose to an altitude of 2.5 km (8,200 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano during 20-23 January; cloud cover prevented observations on the other days. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


16 January-22 January 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 11-18 January, indicating that possible ash plumes rose to an altitude of 2.5 km (8,200 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano on 11 and 14 January; cloud cover prevented observations on the other days. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


9 January-15 January 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 4-11 January, indicating that possible ash plumes rose to an altitude of 3 km (9,800 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano during 5-6 January. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


2 January-8 January 2013

KVERT reported that moderate seismic activity at Karymsky was detected during 28 December-4 January. Satellite imagery showed a thermal anomaly on the volcano on 28 and 30 December, as well as on 1 January. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


26 December-1 January 2013

KVERT reported that weak-to-moderate seismic activity at Karymsky was detected during 21-28 December. Satellite imagery showed a thermal anomaly on the volcano during 26-27 December. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


19 December-25 December 2012

KVERT reported that weak-to-moderate seismic activity at Karymsky was detected during 14-21 December. Seismic data indicated that ash plumes possibly rose to an altitude of 3 km (9,800 ft) a.s.l. during 13-15 December. Volcanologists observed weak gas-and-steam activity on 18 December. Satellite imagery showed a thermal anomaly on the volcano on 20 December. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


12 December-18 December 2012

KVERT reported that weak-to-moderate seismic activity at Karymsky was detected during 7-14 December. Seismic data indicated that ash plumes possibly rose to an altitude of 3 km (9,800 ft) a.s.l. on 12 December. Satellite imagery showed a thermal anomaly on the volcano on 9 and 12-13 December. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


5 December-11 December 2012

KVERT reported that weak-to-moderate seismic activity at Karymsky was detected during 29 November-7 December. Seismic data indicated that ash plumes possibly rose to an altitude of 3 km (9,800 ft) a.s.l. during 29-30 November. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


28 November-4 December 2012

KVERT reported that moderate seismic activity at Karymsky was detected during 23-30 November. Satellite imagery showed a thermal anomaly on the volcano on 23 and 28 November; cloud cover obscured views on the other days. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


21 November-27 November 2012

KVERT reported that moderate seismic activity at Karymsky was detected during 16-23 November. Satellite imagery showed a big thermal anomaly on 20 and 22 November; cloud cover obscured views on the other days. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


14 November-20 November 2012

KVERT reported that moderate seismic activity continued at Karymsky during 9-16 November; seismicity indicated that possible ash plumes rose to an altitude of 6 km (19,700 ft) a.s.l. Satellite imagery detected a daily thermal anomaly on the volcano, and ash plumes that drifted 40 km SE on 12 November. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


7 November-13 November 2012

KVERT reported that moderate seismic activity continued at Karymsky during 2-9 November. Satellite imagery detected a thermal anomaly on the volcano during 7-8 November. The Aviation Color Code remained at Orange. Based on analyses of satellite imagery, the Tokyo VAAC reported that on 10 November a possible eruption produced a plume that rose to an altitude of 5.5 km (18,000 ft) a.s.l. and drifted E.

Sources: Kathimerini News, Tokyo Volcanic Ash Advisory Center (VAAC)


31 October-6 November 2012

KVERT reported moderate seismic activity from Karymsky during 26 October-2 November; seismicity indicated that possible ash plumes rose to an altitude of 3.5 km (11,500 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano on 27 October. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


24 October-30 October 2012

KVERT reported moderate seismic activity from Karymsky during 19-26 October, indicating possible ash explosions. Satellite imagery showed a thermal anomaly on the volcano on 20 October. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


17 October-23 October 2012

KVERT reported moderate seismic activity from Karymsky during 12-19 October. Seismic data indicated that ash plumes possibly rose to an altitude of 6 km (19,700 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano on 14 October, and an ash plume drifted 64 km N the next day. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


10 October-16 October 2012

KVERT reported moderate seismic activity from Karymsky during 5-12 October. Seismic data indicated that ash plumes possibly rose to an altitude of 6.5 km (21,300 ft) a.s.l. Satellite imagery showed an ash plume drifting 42 km SE on 6 October, and a thermal anomaly on the volcano on 7 and 11 October. The Aviation Color Code remained at Orange.

Based on analyses of satellite imagery, the Tokyo VAAC reported that on 16 October a possible eruption produced a plume that rose to an altitude of 4 km (13,000 ft) a.s.l. and drifted N. Ash was detected in a subsequent image.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


3 October-9 October 2012

KVERT reported moderate seismic activity from Karymsky during 28 September-5 October. Seismic data indicated that possible ash plumes rose to an altitude of 4 km (13,100 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano on 28 September and 2 October. The Aviation Color Code remained at Orange.

Based on and information from the Kamchatka Branch of the Geophysical Service (KGBS), the Tokyo VAAC reported that on 6 October ash plumes rose to altitudes of 6.1-6.7 km (20,000-22,000 ft) a.s.l. and drifted SE. The plume altitudes were based on seismic data analyses.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


26 September-2 October 2012

KVERT reported moderate seismic activity from Karymsky during 21-28 September. Seismic data indicated that ash plumes possibly rose to an altitude of 6 km (19,700 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano during 23-25 September, and ash clouds near the volcano during 24-25 September. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


19 September-25 September 2012

KVERT reported weak-to-moderate seismic activity from Karymsky during 14-21 September. Seismic data indicated that ash plumes possibly rose to an altitude of 5.5 km (18,000 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano on 19 September. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


12 September-18 September 2012

KVERT reported weak-to-moderate seismic activity from Karymsky during 7-14 September. Seismic data indicated that ash plumes possibly rose to an altitude of 3 km (9,800 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano on 7, 10, and 12 September. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


5 September-11 September 2012

KVERT reported weak-to-moderate seismic activity from Karymsky during 31 August-7 September. Seismic data indicated that ash plumes possibly rose to an altitude of 2.5 km (8,200 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano on 31 August and 1 September. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


29 August-4 September 2012

KVERT reported weak-to-moderate seismic activity from Karymsky during 24-31 August. Volcanologists working on the flank observed explosive activity; ash plumes rose to an altitude of 4.5 km (14,800 ft) a.s.l. on 25 August. Satellite imagery showed a thermal anomaly on the volcano during 23-24, 26, and 28 August. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


22 August-28 August 2012

KVERT reported moderate seismic activity from Karymsky during 17-27 August, and indicated that possible ash plumes rose to an altitude of 5.8 km (19,000 ft) a.s.l. on 25 August and to an altitude of 2.4 km (7,900 ft) a.s.l. on 27 August. Satellite imagery showed a daily thermal anomaly on the volcano. The Aviation Color Code remained at Orange.

Based on information from KEMSD, the Tokyo VAAC reported that on 25 August an eruption produced a plume that rose to an altitude of 5.8 km (19,000 ft) a.s.l. The altitude was based on seismic analysis.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


15 August-21 August 2012

KVERT reported moderate seismic activity from Karymsky during 10-20 August. Satellite imagery showed a weak thermal anomaly on the volcano during 10-13, 15, and 18-20 August. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


8 August-14 August 2012

KVERT reported moderate seismic activity from Karymsky during 3-10 August. Satellite imagery showed a weak thermal anomaly on the volcano. A possible gas-and-ash explosion on 8 August may have produced a plume that rose to an altitude of 3.3 km (10,800 ft) a.s.l. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


1 August-7 August 2012

KVERT reported moderate seismic activity from Karymsky during 27 July-3 August. Satellite imagery showed a weak thermal anomaly on the volcano on 31 July, and 2 and 6 August. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


25 July-31 July 2012

KVERT reported moderate seismic activity from Karymsky during 20-27 July. Satellite imagery showed a weak thermal anomaly on the volcano on 22 and 25 July. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


18 July-24 July 2012

KVERT reported mostly weak seismic activity from Karymsky during 13-23 July. Satellite imagery showed a weak thermal anomaly on the volcano during 13-19 July. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


11 July-17 July 2012

KVERT reported that moderate seismic activity from Karymsky continued to be detected during 6-16 July, and indicated that possible ash plumes rose to an altitude of 2.5 km (8,200 ft) a.s.l. Satellite imagery showed a weak thermal anomaly on the volcano on 12 and 14 July. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


4 July-10 July 2012

KVERT reported that moderate seismic activity from Karymsky continued to be detected during 29 June-10 July, and indicated that possible ash plumes rose to altitudes of 2.1-3.3 km (6,900-10,800 ft) a.s.l. during 29 June-7 July. Satellite imagery showed a weak thermal anomaly on the volcano on 29 June and 1 July. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


27 June-3 July 2012

KVERT reported that moderate seismic activity from Karymsky continued to be detected during 22-29 June, and indicated that possible ash plumes rose to an altitude of 3.6 km (11,800 ft) a.s.l. Satellite imagery showed a weak thermal anomaly on the volcano on 22 June. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


20 June-26 June 2012

KVERT reported that moderate seismic activity from Karymsky continued to be detected during 15-22 June, and indicated that possible ash plumes rose to an altitude of 3.6 km (11,800 ft) a.s.l. during 16-19 June. Satellite imagery showed a weak thermal anomaly on the volcano during 20-21 June. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


13 June-19 June 2012

KVERT reported that moderate seismic activity from Karymsky continued to be detected during 8-15 June, and indicated that possible ash plumes rose to an altitude of 3 km (9,800 ft) a.s.l. during 8-13 June. Meteorological cloud cover prevented satellite image views. Based on analysis of seismic data, KVERT reported that on 18 June possible ash plumes rose to an altitude of 3 km (10,000 ft) a.s.l. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


6 June-12 June 2012

KVERT reported that moderate seismic activity from Karymsky continued to be detected during 31 May-8 June, and indicated that possible ash plumes rose to an altitude of 2.4 km (8,000 ft) a.s.l. on 31 May. Satellite imagery showed a thermal anomaly on the volcano during 3-4 and 6 June. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


30 May-5 June 2012

KVERT reported that moderate seismic activity from Karymsky continued to be detected during 25 May-1 June. Satellite imagery showed a thermal anomaly on the volcano during 25, 28, and 30-31 May. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


23 May-29 May 2012

KVERT reported that moderate seismic activity from Karymsky continued to be detected during 18-25 May, and indicated that possible ash plumes rose to an altitude of 2.2 km (7,200 ft) a.s.l. on 17 and 19 May. Satellite imagery showed a thermal anomaly on the volcano during 17-18, 20, 22, and 24 May. The Aviation Color Code remained at Orange.

Based on information from the Yelizovo Airport (UHPP) and analyses of satellite imagery, the Tokyo VAAC reported that on 27 May an ash plume drifted NE at an altitude of 3 km (10,000 ft) a.s.l.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


16 May-22 May 2012

KVERT reported that moderate seismic activity from Karymsky continued to be detected during 11-18 May, and indicated that possible ash plumes rose to an altitude of 1.8 km (6,000 ft) a.s.l. on 10 and 14 May. Satellite imagery showed a thermal anomaly on the volcano during 10-13 and 16 May. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


9 May-15 May 2012

KVERT reported that moderate seismic activity from Karymsky continued to be detected during 4-11 May, and indicated that possible ash plumes rose to an altitude of 2 km (6,600 ft) a.s.l. during 7-8 May. Satellite imagery showed a daily thermal anomaly on the volcano. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


2 May-8 May 2012

KVERT reported that moderate seismic activity from Karymsky continued to be detected during 27 April-4 May, and indicated that possible ash plumes rose to an altitude of 2.3 km (7,600 ft) a.s.l. during 26-27 April and 2 May. Satellite imagery showed a gas-and-steam plume drifting 65 km SE on 27 April; a thermal anomaly was present during 27, 29, and 30 April and 2-3 May. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


25 April-1 May 2012

KVERT reported that moderate seismic activity from Karymsky continued to be detected during 20-27 April, and indicated that possible ash plumes rose to an altitude of 2.5 km (8,200 ft) a.s.l. during 20 and 24-25 April. Satellite imagery showed a daily thermal anomaly on the volcano. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


18 April-24 April 2012

KVERT reported that moderate seismic activity from Karymsky continued to be detected during 13-20 April. Satellite imagery showed a thermal anomaly on the volcano during 15-19 April. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


11 April-17 April 2012

KVERT reported that during 7-13 April moderate seismic activity from Karymsky continued to be detected, and indicated that possible ash plumes rose to an altitude of 2.5 km (8,200 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano during 7 and 9-10 April, and ash deposits 15 km long on the E flank on 11 April. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


4 April-10 April 2012

KVERT reported that during 30 March-6 April moderate seismic activity from Karymsky continued to be detected, and indicated that possible ash plumes rose to an altitude of 2.5 km (8,200 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano on 29 March. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


28 March-3 April 2012

KVERT reported that during 23-30 March seismic activity from Karymsky continued to be detected, and indicated that possible ash plumes rose to an altitude of 2.5 km (8,200 ft) a.s.l. during 22-26 March. Satellite imagery showed a thermal anomaly on the volcano almost daily. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


21 March-27 March 2012

KVERT reported that during 16-23 March seismic activity from Karymsky continued to be detected, and indicated that possible ash plumes rose to an altitude of 3 km (9,800 ft) a.s.l. during 17 and 20-21 March. Satellite imagery showed a thermal anomaly on the volcano on 15 and 17 March; cloud cover prevented observations on the other days. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


14 March-20 March 2012

KVERT reported that during 9-16 March seismic activity from Karymsky continued to be detected and indicated that possible ash plumes rose to an altitude of 3.1 km (10,100 ft) a.s.l. on 14 March. Satellite imagery showed a thermal anomaly on the volcano during 10-13 March. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


7 March-13 March 2012

KVERT reported that during 2-9 March seismic activity from Karymsky continued to be detected and indicated that possible ash plumes rose to an altitude of 3.4 km (11,000 ft) a.s.l. on 3 March. Satellite imagery showed a thermal anomaly on the volcano on 2 March. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


29 February-6 March 2012

KVERT reported that seismic activity continued at a moderate level at Karymsky during 24 February-2 March, and indicated that possible ash plumes rose to an altitude of 3.9 km (12,800 ft) a.s.l. during 23-27 February. Satellite imagery showed a thermal anomaly on the volcano on 25 February; clouds obscured views on the other days. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


22 February-28 February 2012

KVERT reported that seismic activity continued at a moderate level at Karymsky during 17-24 February, and indicated that possible ash plumes rose to an altitude of 3.5 km (11,500 ft) a.s.l. Satellite imagery showed a thermal anomaly at the volcano during 16-21 February and an ash plume that drifted 15 km E on 21 February. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


15 February-21 February 2012

KVERT reported that seismic activity continued at a moderate level at Karymsky during 10-17 February and indicated that possible ash plumes rose to an altitude of 4.6 km (15,000 ft) a.s.l. Satellite imagery showed a thermal anomaly at the volcano all week. According to visual observations from Koryaksky volcano, gas-and-steam activity occurred at Karymsky on 12 February. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


8 February-14 February 2012

KVERT reported that seismic activity continued at a moderate level at Karymsky during 3-10 February and indicated that ash plumes possibly rose to an altitude of 4.1 km (13,500 ft) a.s.l. Satellite imagery showed a thermal anomaly at the volcano all week and an ash cloud 3 km long by 7 km wide that drifted 10 km SE on 6 February. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


1 February-7 February 2012

KVERT reported that seismic activity continued at a moderate level at Karymsky during 27 January-3 February and indicated that ash plumes possibly rose to an altitude of 2.6 km (8,530 ft) a.s.l. during 28 and 30-31 January. Satellite imagery showed a thermal anomaly at the volcano all week and gas-and-steam plumes containing ash that were drifting as far as 80 km E during 30-31 January and on 1 February. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


25 January-31 January 2012

KVERT reported that seismic activity continued at a moderate level at Karymsky during 19-27 January and indicated that ash plumes possibly rose to an altitude of 3 km (9,840 ft) a.s.l. during 19-21 and on 25 January. Satellite imagery showed a thermal anomaly at the volcano during 21-24 January and gas-and-steam plumes containing ash that were drifting as far as 70 km NW on 23 January. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


18 January-24 January 2012

KVERT reported that seismic activity continued at a moderate level at Karymsky during 13-20 January and that seismicity indicated the possibility of ash plumes to an altitude of 3.3 km (10,800 ft) a.s.l. Satellite imagery showed a thermal anomaly at the volcano during 14-15 January; clouds prevented views on the other days. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


11 January-17 January 2012

KVERT reported that seismic activity continued at a moderate level at Karymsky during 6-13 January and indicated that possible ash plumes rose to an altitude of 4.2 km (13,800 ft) a.s.l. Satellite imagery showed a thermal anomaly at the volcano during 5-11 January and weak ash plumes that drifted 40 km E and NE on 6, 7, and 11 January. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


4 January-10 January 2012

KVERT reported that seismic activity continued at a moderate level at Karymsky during 30 December-6 January and indicated that possible ash plumes rose to an altitude of 4.5 km (14,800 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano all week. An ash cloud 10 km long and 2 km wide drifted 56 km SSE on 1 January. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


28 December-3 January 2012

KVERT reported that seismic activity continued at a moderate level at Karymsky during 23-30 December and indicated that possible ash plumes rose to an altitude of 5 km (16,400 ft) a.s.l. Satellite imagery showed a thermal anomaly at the volcano during 22-24 and 27-28 December; clouds prevented views on the other days. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


21 December-27 December 2011

KVERT reported that seismic activity continued at a moderate level at Karymsky during 16-23 December and indicated that possible ash plumes rose to an altitude of 4.1 km (13,500 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano on 21 December and a gas-and-steam plume with possible ash that drifted 40 km S on 20 December. The Aviation Color Code remained at Orange.

Based on information from KEMSD and satellite imagery, the Tokyo VAAC reported that on 26 December an eruption produced a plume that rose to an altitude of 5.2 km (17,000 ft) a.s.l. The altitude was based on seismic analysis.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


14 December-20 December 2011

KVERT reported that seismic activity continued at a moderate level at Karymsky during 9-16 December and indicated that possible ash plumes rose to an altitude of 4.1 km (13,500 ft) a.s.l. during 8-10 and 14 December. Satellite imagery showed a daily thermal anomaly and ash plumes that drifted 160 km SE during 12-13 December. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


7 December-13 December 2011

KVERT reported that seismic activity continued at a moderate level at Karymsky during 2-9 December and indicated that possible ash plumes rose to an altitude of 3.6 km (11,800 ft) a.s.l. Satellite imagery showed a daily thermal anomaly and ash plumes that drifted 90 km E on 3, 7, and 8 December. The Aviation Color Code remained at Orange. Based on information from KVERT, the Tokyo VAAC reported that on 13 December an ash plume rose to an altitude of 3.0 km (10,000 ft) a.s.l. and drifted E.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


30 November-6 December 2011

KVERT reported that seismic activity continued at a moderate level at Karymsky during 25 November-2 December and indicated that possible ash plumes rose to an altitude of 3.8 km (12,500 ft) a.s.l. during the week. Satellite imagery showed a thermal anomaly on the volcano during 28-30 November and 1 December. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


23 November-29 November 2011

KVERT reported that seismic activity continued at a moderate level at Karymsky during 18-25 November and indicated that possible ash plumes rose to an altitude of 2.8 km (9,200 ft) a.s.l. during 19-22 November. Satellite imagery showed a thermal anomaly on the volcano during 18, 20, and 24 November. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


16 November-22 November 2011

KVERT reported that seismic activity continued at a moderate level at Karymsky during 11-18 November, and indicated that possible ash plumes rose to an altitude of 3.9 km (12,800 ft) a.s.l. Satellite imagery showed ash plumes that drifted 172 km E on 11 November and a thermal anomaly on the volcano during 11-12 November. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


9 November-15 November 2011

KVERT reported that seismic activity continued at a moderate level at Karymsky during 4-11 November, and indicated that possible ash plumes rose to an altitude of 3.5 km (11,500 ft) a.s.l. Satellite imagery showed either no activity, possibly due to cloud cover. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


2 November-8 November 2011

KVERT reported that seismic activity continued at a moderate level at Karymsky during 28 October-4 November, and indicated that possible ash plumes rose to an altitude of 4.5 km (14,800 ft) a.s.l. during 27-30 October and 1-2 November. Satellite imagery showed ash plumes drifting 130 km SE during 29-30 October and a thermal anomaly on the volcano during 29-31 October. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


26 October-1 November 2011

KVERT reported that seismic activity continued at a moderate level at Karymsky during 21-28 October, and indicated that possible ash plumes rose to an altitude of 3.7 km (12,100 ft) a.s.l. during 20 and 23-24 October. Satellite imagery showed a daily thermal anomaly on the volcano and an ash plume that rose to an altitude of 1.8 km (6,000 ft) a.s.l. and drifted 15 km NE on 26 October. The Aviation Color Code remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


19 October-25 October 2011

KVERT reported that seismic activity continued at a moderate level at Karymsky during 14-21 October, and indicated that possible ash plumes rose to an altitude of 3.3 km (10,800 ft) a.s.l. during 13-15 October and to lesser altitudes the other days of the week. Satellite imagery showed a thermal anomaly on the volcano on 14 and 16 October. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


12 October-18 October 2011

KVERT reported that seismic activity continued at a moderate level at Karymsky during 7-14 October and indicated that possible ash plumes rose to an altitude of 2.2 km (7,200 ft) a.s.l. Ash plumes possibly rose to an altitude of 3.8 km (12,500 ft) a.s.l. on 7 October. Satellite imagery showed a thermal anomaly on the volcano on 6 and 8 October. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


5 October-11 October 2011

KVERT reported that seismic activity continued at a moderate level at Karymsky during 30 September-7 October and indicated that possible ash plumes rose to an altitude of 3.2 km (10,500 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano during 4-5 October. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


28 September-4 October 2011

KVERT reported that seismic activity continued at a moderate level at Karymsky during 23-30 September and indicated that possible ash plumes rose to an altitude of 4.5 km (14,800 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano on 24 September and ash plumes that drifted 80 km SE during 28-29 September. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


21 September-27 September 2011

KVERT reported that seismic activity continued at a moderate level at Karymsky during 16-23 September and indicated that possible ash plumes rose to altitudes of 5-6 km (16,400-19,700 ft) a.s.l. during 16-17 September. A thermal anomaly was detected in satellite imagery during 16, 18, and 20 September. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


14 September-20 September 2011

KVERT reported that seismic activity continued at a moderate level at Karymsky during 9-15 September, and indicated that possible ash plumes rose to an altitude of 4.6 km (15,100 ft) a.s.l. during 13-14 September. An observer in the area noted that ash explosions produced ash plumes all week that did not rise higher than 3.5 km (11,500 ft) a.s.l. A thermal anomaly was detected daily in satellite imagery and ash plumes drifted 80 km E and SE during 11-12 and 14 September. The Aviation Color Code remained at Orange.

Based on information from Yelizovo Airport (UHPP), the Tokyo VAAC reported that on 20 September an ash plume rose to an altitude of 2.7 km (9,000 ft) a.s.l. and drifted NE.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


7 September-13 September 2011

KVERT reported that during 2-9 September moderate seismic activity continued at Karymsky, indicating that possible ash plumes rose to an altitude of 3.5 km (11,500 ft) a.s.l. A thermal anomaly on the volcano was detected daily in satellite imagery. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


31 August-6 September 2011

KVERT reported that during 26 August-1 September moderate seismic activity continued at Karymsky, indicating that possible ash plumes rose to an altitude of 3 km (10,000 ft) a.s.l. Gas-and-steam plumes containing ash drifted 40 km E on 26 and 29 August. A thermal anomaly on the volcano was detected by satellite during 26 and 29-30 August. The Aviation Color Code remained at Orange.

Based on information from Yelizovo Airport (UHPP), the Tokyo VAAC reported that on 2 September an ash plume rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted NE. Ash plumes rose to an altitude of 2.1 km (7,000 ft) a.s.l. during 5-6 September and drifted SE and SW.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


24 August-30 August 2011

KVERT reported that during 19-26 August moderate seismic activity continued at Karymsky, indicating that possible ash plumes rose to an altitude of 5.2 km (17,000 ft) a.s.l. A thermal anomaly on the volcano was detected by satellite during 21-25 August. Gas-and-steam plumes containing ash drifted 18 and 65 km E on 18 and 24 August, respectively. The Aviation Color Code remained at Orange.

Based on information from Yelizovo Airport (UHPP), the Tokyo VAAC reported that on 29 August an ash plume rose to an altitude of 7.3 km (24,000 ft) a.s.l. and drifted E.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


17 August-23 August 2011

KVERT reported that during 12-19 August moderate seismic activity continued at Karymsky, indicating that possible ash plumes rose to an altitude of 4.2 km (13,800 ft) a.s.l. A thermal anomaly on the volcano was detected by satellite during 14 and 17-18 August; cloud cover prevented observations on the other days. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


10 August-16 August 2011

KVERT reported that during 5-12 August moderate seismic activity continued at Karymsky and possible ash plumes rose to an altitude of 3 km (9,800 ft) a.s.l. A thermal anomaly on the volcano was detected daily by satellite. During 7-8 August, pilots observed ash plumes that rose to an altitude of 4 km (13,100 ft) a.s.l. and drifted E. Satellite imagery also showed an ash cloud, 3 by 1.5 km in dimension, that was 10 km W of the volcano on 10 August. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


3 August-9 August 2011

KVERT reported that during 29 July-5 August moderate seismic activity continued at Karymsky and possible ash plumes rose to an altitude of 5.5 km (18,000 ft) a.s.l. A thermal anomaly on the volcano was detected by satellite during 30 July-3 August; cloud cover prevented observations on the other days. The Aviation Color Code remained at Orange.

Based on information from Yelizovo Airport (UHPP), the Tokyo VAAC reported that on 8 August an ash plume rose to an altitude of 4.3 km (14,000 ft) a.s.l. and drifted E.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


27 July-2 August 2011

KVERT reported that during 22-29 July moderate seismic activity continued at Karymsky and possible ash plumes rose from the crater. A thermal anomaly on the volcano was detected by satellite during 22 and 24-27 July; cloud cover prevented observations on the other days. The Aviation Color Code remained at Orange.

Based on information from Yelizovo Airport (UHPP), the Tokyo VAAC reported that on 30 July an ash plume rose to an altitude of 2.1 km (7,000 ft) a.s.l. and drifted SW.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


20 July-26 July 2011

KVERT reported that during 15-22 July moderate seismic activity continued at Karymsky and possible ash plumes rose to an altitude of 4 km (13,000 ft) a.s.l. A thermal anomaly on the volcano was detected by satellite during 14, 16, and 18-21 July. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


13 July-19 July 2011

KVERT reported that during 8-15 July moderate seismic activity continued at Karymsky and possible ash plumes rose to an altitude of 4 km (13,000 ft) a.s.l. A thermal anomaly on the volcano was detected by satellite on 8, 11, and 14 July. An ash plume observed by pilots on 12 July drifted 20 km SW. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


6 July-12 July 2011

KVERT reported that during 1-8 July moderate seismic activity continued at Karymsky and possible ash plumes rose to an altitude of 4 km (13,100 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano during 2 and 4-5 June, and ash plumes that drifted 14 km NW and 38 km N on 2 and 5 July, respectively. The Aviation Color Code remained at Orange.

Based on information from Yelizovo Airport (UHPP), the Tokyo VAAC reported that on 12 July an ash plume rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted SW.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


29 June-5 July 2011

KVERT reported moderate seismic activity at Karymsky during 24 June-1 July. A thermal anomaly was detected in satellite imagery on 25, 28, and 30 June. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


22 June-28 June 2011

KVERT reported moderate seismic activity at Karymsky during 17-24 June and that possible ash plumes rose to an altitude of 3.9 km (12,800 ft) a.s.l. Satellite imagery showed a thermal anomaly on the volcano during 16-17 June. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


15 June-21 June 2011

KVERT reported moderate seismic activity at Karymsky during 10-16 June and that possible ash plumes rose to an altitude of 5.5 km (18,000 ft) a.s.l. Satellite imagery showed a weak thermal anomaly on the volcano during 10-14 June and an ash plume that drifted 90 km NE on 14 June. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


8 June-14 June 2011

KVERT reported moderate seismic activity at Karymsky during 3-10 June and that possible ash plumes rose to an altitude of 6 km (15,100 ft) a.s.l. Satellite imagery showed a thermal anomaly during 3-4 June and an ash plume that drifted 254 km SE on 4 June. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


1 June-7 June 2011

KVERT reported moderate seismic activity at Karymsky during 27 May-3 June. Seismic data indicated that possible ash plumes rose to an altitude of 3.1 km (10,200 ft) a.s.l. Satellite imagery detected a thermal anomaly during 28-30 May and 1-2 June, and an ash plume that drifted 10 km SW on 30 May. The Aviation Color Code remained at Orange.

Based on information from KVERT, the Tokyo VAAC reported that on 4 June an ash plume rose to an altitude of 1.5 km (5,000 ft) a.s.l. and drifted SE.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


25 May-31 May 2011

KVERT reported moderate seismic activity at Karymsky during 20-27 May. Possible ash plumes rose to an altitude of 6.5 km (21,300 ft) a.s.l. on 21 May and to an altitude of 3.5 km (11,500 ft) a.s.l. on the other days. Satellite imagery showed a thermal anomaly during 19-20, 22, and 24 May, and ash plumes that drifted 38 km SW on 22 May. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


18 May-24 May 2011

KVERT reported moderate seismic activity at Karymsky during 13-20 May. Seismic data indicated that possible ash plumes rose to an altitude of 2.5 km (8,200 ft) a.s.l. A thermal anomaly was detected in satellite imagery during 16-17 and 19 May. The Aviation Color Code remained at Orange. Based on information from KVERT, the Tokyo VAAC reported that on 21 May an eruption produced a plume that rose to an altitude of 6.7 km (22,000 ft) a.s.l.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


11 May-17 May 2011

KVERT reported moderate seismic activity at Karymsky during 6-13 May. Possible ash plumes rose to an altitude of 6 km (19,700 ft) a.s.l. on 10 May and to an altitude of 4.2 km (13,800 ft) a.s.l. on the other days. Pilots reported that on 6 May ash plumes rose to an altitude of 3 km (9,800 ft) a.s.l. Satellite imagery showed a thermal anomaly and ash plumes that drifted 340 km E during 6-7 May. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


4 May-10 May 2011

KVERT reported moderate seismic activity at Karymsky during 29 April-6 May. Seismic data indicated that possible ash plumes rose to an altitude of 4.9 km (16,000 ft) a.s.l. A thermal anomaly was detected in satellite imagery during 1-4 May. The Aviation Color Code remained at Orange. Based on analyses of satellite imagery and information from KVERT, the Tokyo VAAC reported that on 7 May ash plumes rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted SE.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


27 April-3 May 2011

KVERT reported moderate seismic activity at Karymsky during 22-29 April and a thermal anomaly that was detected daily in satellite imagery. Seismic data indicated that possible ash plumes rose to an altitude of 3.4 km (11,200 ft) a.s.l. Visual observations showed that moderate explosive activity continued. During 22-23 April gas-and-steam plumes detected in satellite imagery drifted 38 km S. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


20 April-26 April 2011

KVERT reported moderate seismic activity at Karymsky during 15-22 April. Seismic data indicated that possible ash plumes rose to an altitude of 3 km (10,000 ft) a.s.l. A thermal anomaly was detected in satellite imagery on 16, 18, and 21 April. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


13 April-19 April 2011

KVERT reported moderate seismic activity at Karymsky during 8-15 April. Seismic data indicated that possible ash plumes rose to an altitude of 4.7 km (15,400 ft) a.s.l. A thermal anomaly was detected in satellite imagery during 7-10 April. The Aviation Color Code remained at Orange. Based on information from the Yelizovo Airport (UHPP), the Tokyo VAAC reported that ash plumes rose to altitudes of 5.5-11.9 km (18,000-39,000 ft) a.s.l. and drifted SW on 18 April.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


6 April-12 April 2011

KVERT reported moderate seismic activity at Karymsky during 1-7 April. Seismic data indicated that possible ash plumes rose to an altitude of 4.5 km (14,800 ft) a.s.l. A thermal anomaly was detected in satellite imagery on 2 and 4 April and ash-and-gas plumes drifted in multiple directions as far as 48 km during 1-2 and 4 April. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


30 March-5 April 2011

KVERT reported moderate seismic activity at Karymsky during 25 March-1 April. Seismic data indicated that possible ash plumes rose to an altitude of 5 km (16,400 ft) a.s.l. A thermal anomaly was detected daily in satellite imagery. Ash and gas-and-steam plumes drifted 55 km in multiple directions during 25, 27, and 29-30 March. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


23 March-29 March 2011

KVERT reported moderate seismic activity at Karymsky during 18-25 March. Seismic data indicated that possible ash plumes rose to an altitude of 3.5 km (11,500 ft) a.s.l. A thermal anomaly was detected in satellite imagery during 19-24 March. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


16 March-22 March 2011

KVERT reported that moderate seismic activity was detected at Karymsky during 10-18 March. Seismic data during 10-16 March indicated that possible ash plumes rose to an altitude of 5.8 km (19,700 ft) a.s.l. A thermal anomaly was detected in satellite imagery during 11-14 and 16 March. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


9 March-15 March 2011

KVERT reported that moderate seismic activity was detected at Karymsky during 4-11 March. Seismic data during 3-5 March indicated that possible ash plumes rose to an altitude of 4 km (13,100 ft) a.s.l. A thermal anomaly was detected in satellite imagery during 7-9 March. The Aviation Color Code remained at Orange. Based on information from the Yelizovo Airport (UHPP), the Tokyo VAAC reported that an ash plume rose to an altitude of 7.3 km (24,000 ft) a.s.l. and drifted N on 13 March.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


2 March-8 March 2011

KVERT reported that moderate seismic activity was detected at Karymsky during 25 February-4 March. Seismic data indicated that possible ash plumes rose to an altitude of 3 km (10,000 ft) a.s.l. Satellite imagery showed a thermal anomaly over the volcano on 25 February and 2 March. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


23 February-1 March 2011

KVERT reported that moderate seismic activity was detected at Karymsky during 18-25 February. Seismic data indicated that possible ash plumes rose to an altitude of 4 km (13,100 ft) a.s.l. Satellite imagery showed a daily thermal anomaly and ash plumes that drifted 38 km NE on 22 February. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


16 February-22 February 2011

KVERT reported that moderate seismic activity was detected at Karymsky during 11-18 February. Seismic data indicated that possible ash plumes rose to an altitude of 4 km (13,100 ft) a.s.l. Satellite imagery showed a daily thermal anomaly and ash plumes that drifted 30 km NE on 16 February. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


9 February-15 February 2011

KVERT reported that moderate seismic activity was detected at Karymsky during 4-11 February. Seismic data indicated that possible ash plumes rose to an altitude of 4 km (13,100 ft) a.s.l. Satellite imagery showed a daily thermal anomaly and ash plumes that drifted 160 km E during 6-7 February. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


2 February-8 February 2011

KVERT reported that moderate seismic activity was detected at Karymsky during 28 January-4 February. Seismic data showed that possible ash plumes rose to an altitude of 4.7 km (15,400 ft) a.s.l. Satellite imagery showed a daily thermal anomaly, and ash plumes were observed drifting 120 km E during 30-31 January and 1-2 February. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


26 January-1 February 2011

KVERT reported that moderate seismic activity was detected at Karymsky during 21-28 January. Seismic data showed that possible ash plumes rose to an altitude of 3.8 km (12,500 ft) a.s.l. A thermal anomaly was observed daily in satellite imagery, and ash plumes were observed drifting 65 km S and 100 km NE on 26 and 27 January, respectively. The Aviation Color Code remained at Orange.

Based on information from the Yelizovo Airport (UHPP), the Tokyo VAAC reported that an ash plume rose to an altitude of 4.6 km (15,000 ft) a.s.l. and drifted NE on 1 February.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


19 January-25 January 2011

KVERT reported that moderate seismic activity was detected at Karymsky during 14-21 January. Seismic data showed that possible ash plumes rose to an altitude of 4.6 km (15,100 ft) a.s.l. A thermal anomaly was observed in satellite imagery during 15 and 18-20 January, and an ash plume drifted 24 km SW on 20 January. Based on analyses of satellite imagery, the Tokyo VAAC reported that eruptions during 24-25 January produced plumes that rose to altitudes of 3.4-4.6 km (11,000-15,000 ft) a.s.l. and drifted SE. The Aviation Color Code remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


12 January-18 January 2011

KVERT reported that moderate seismic activity was detected at Karymsky during 7-13 January. A thermal anomaly was observed in satellite imagery on 9 January; cloud cover obscured views on the other days. Seismic data showed that possible ash plumes rose to an altitude of 4.2 km (13,800 ft) a.s.l. during 10-12 January. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


5 January-11 January 2011

KVERT reported that seismic activity at Karymsky was above background levels on 1 and 5 January, suggesting that possible ash plumes rose to an altitude of 3.8 km (12,500 ft) a.s.l. Seismic activity did not exceed background levels on the other days during 31 December-7 January. A thermal anomaly was detected daily in satellite imagery. An ash plume drifting 140 km SE was also seen in imagery on 2 January. Based on a pilot observation, the Tokyo VAAC reported that on 5 January an ash plume rose to an altitude of 4.6 km (15,000 ft) a.s.l.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


29 December-4 January 2011

KVERT reported that seismic activity at Karymsky was above background levels during 23-26 December and did not exceed background levels during 27-30 December. Seismic data suggested that possible ash plumes rose to an altitude of 4.3 km (14,100 ft) a.s.l. Thermal anomalies were detected in satellite imagery during 23-24 December; cloud cover prevented views on the other days. The Aviation Color Code level remained at Orange.

Based on a Yelizovo Airport (UHPP) notification, the Tokyo VAAC reported that on 31 December an ash plume rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted E.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


22 December-28 December 2010

KVERT reported that seismic activity at Karymsky was slightly above background levels during 16-19 December and did not exceed background levels during 20-24 December. Seismic data suggested that possible ash plumes rose to an altitude of 3 km (9,800 ft) a.s.l. Thermal anomalies were detected in satellite imagery during 18-21 December. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


15 December-21 December 2010

KVERT reported that seismic activity at Karymsky was above background levels during 10-17 December. Seismic data suggested that possible ash plumes rose to an altitude of 5 km (16,400 ft) a.s.l. Thermal anomalies were detected in satellite imagery during 12-13 and 15 December. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


8 December-14 December 2010

KVERT reported that seismic activity at Karymsky was above background levels during 3-10 December. Seismic data suggested that possible ash plumes rose to an altitude of 4.5 km (14,800 ft) a.s.l. during 4-7 December. Thermal anomalies were detected in satellite imagery on 3 and 6 December. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


1 December-7 December 2010

KVERT reported that seismic activity at Karymsky was above background levels during 26 November-3 December, suggesting that possible ash plumes rose to an altitude of 5.3 km (17,400 ft) a.s.l. during 25-26 and 30 November, and 1-2 December. Thermal anomalies were detected in satellite imagery on 26 and 27 November, and 1 December. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


24 November-30 November 2010

KVERT reported that seismic activity from Karymsky was above background levels during 19-26 November, suggesting that possible ash plumes rose to an altitude of 5.5 km (18,000 ft) a.s.l. during 20-24 November. On 20 November, volcanologists surveying the volcano by helicopter observed gas-and-steam activity and noted that the upper flanks were covered with ash. Satellite imagery showed a daily thermal anomaly over the volcano and a gas-and-steam plume drifting 15 km SE on 22 November. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


17 November-23 November 2010

KVERT reported that seismic activity from Karymsky was above background levels during 11-19 November, suggesting that possible ash plumes rose to an altitude of 5.2 km (17,100 ft) a.s.l. on 13 and 17 November. Satellite imagery showed a thermal anomaly over the volcano during 11-18 November. Ash clouds with dimensions as large as 23 x 10 km were detected in imagery 82 km NE on 16 November and 15 km NE on 17 November. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


10 November-16 November 2010

KVERT reported that seismic activity from Karymsky was above background levels during 9-10 November, suggesting that possible ash plumes rose to altitudes of 3.5-4.9 km (11,500-16,100 ft) a.s.l. Seismic activity was at background levels on the other days during 5-12 November. Satellite imagery showed a daily thermal anomaly over the volcano. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


3 November-9 November 2010

KVERT reported that seismic activity from Karymsky was above background levels during 29 October-5 November. Satellite imagery showed a thermal anomaly over the volcano during 30 October-1 November. Cloud cover prevented observations the other days. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


27 October-2 November 2010

KVERT reported that seismic activity from Karymsky was above background levels during 21-23 October and at background levels during 24-29 October. Satellite imagery showed a thermal anomaly over the volcano during 22-25 October and an ash plume that drifted 40 km E on 23 October. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


20 October-26 October 2010

KVERT reported that seismic activity from Karymsky was above background levels during 15-22 October, suggesting that possible ash plumes rose to altitudes of 2-4 km (6,600-13,100 ft) a.s.l. Volcanologists working at Karymsky observed Strombolian activity at night, along with ash plumes during 14-16 October that rose to altitudes of 2.5-3 km (8,200-10,000 ft) a.s.l. and drifted E. A thermal anomaly was seen in satellite imagery during 15-16 and 18-19 October. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


13 October-19 October 2010

KVERT reported that seismic activity from Karymsky was above background levels during 8-15 October, suggesting that possible ash plumes rose to altitudes of 2-3 km (6,600-9,800 ft) a.s.l. Volcanologists working at Karymsky observed Strombolian activity at night, along with ash plumes during 7-10 October that rose to an altitude of 2.5 km (11,500 ft) a.s.l. and drifted E. Satellite imagery showed ash plumes that drifted 35 km SE on 7 and 8 October and thermal anomalies on the volcano during 7-10, 12, and 14 October. Based on information from the Yelizovo Airport (UHPP), the Tokyo VAAC reported that on 16 October an ash plume rose to an altitude of 2.7 km (9,000 ft) a.s.l. and drifted SE. The Aviation Color Code level remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


6 October-12 October 2010

KVERT reported that seismic activity from Karymsky was above background levels during 1-8 October. The elevated seismicity suggested that ash explosions had occurred, and ash plumes rose to altitudes of 3 and 5.1 km (9,800-16,700 ft) a.s.l. on 3 and 4 October, respectively. Thermal anomalies were seen in satellite imagery during 4-5 October, and ash plumes drifted 33 km SE on 7 October. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


29 September-5 October 2010

KVERT reported that seismic activity from Karymsky was at background levels during 22-24 September and above background levels during 25-29 September. The elevated seismicity suggested that ash explosions had occurred. Ash plumes rose to altitudes of 3-4.5 km (9,800-14,800 ft) a.s.l. during 25-27 September. Thermal anomalies were seen in satellite imagery on 23, 25, and 28 September, and ash plumes drifted 83 km SE on 28 September. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


22 September-28 September 2010

KVERT reported that seismic activity from Karymsky was above background levels during 16-20 September and suggested possible ash explosions. Seismicity was at background levels on 21 and 22 September. Cloud cover prevented satellite image views. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


15 September-21 September 2010

KVERT reported that during 10-17 September seismic activity from Karymsky was above background levels, and suggested that possible ash plumes rose to an altitude of 3.2 km (10,500 ft) a.s.l. on 15 September. Satellite imagery showed a thermal anomaly over the volcano during 10-11 and 14 September. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


8 September-14 September 2010

KVERT reported that during 3-10 September seismic activity from Karymsky was above background levels and suggested that possible ash plumes rose to an altitude of 3.2 km (10,500 ft) a.s.l. Satellite imagery showed a thermal anomaly over the volcano during the week. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


1 September-7 September 2010

KVERT reported that during 27 August-3 September seismic activity from Karymsky was above background levels and suggested that possible ash plumes rose to an altitude of 3.7 km (12,100 ft) a.s.l. Satellite imagery showed a thermal anomaly over the volcano during the week and an ash plume that drifted 23 km on 28 August. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


25 August-31 August 2010

KVERT reported that during 20-27 August seismic activity from Karymsky was above background levels and suggested that possible ash plumes rose to an altitude of 3.8 km (12,500 ft) a.s.l. Satellite imagery showed a thermal anomaly over the volcano during 20 and 23-24 August. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


18 August-24 August 2010

KVERT reported that during 13-20 August seismic activity from Karymsky was above background levels and suggested that possible ash plumes rose to an altitude of 3 km (9,800 ft) a.s.l. Satellite imagery showed a thermal anomaly over the volcano during 14-15 August and ash plumes that drifted 100 km E. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


11 August-17 August 2010

KVERT reported that during 6-13 August seismic activity from Karymsky was above background levels and suggested that possible ash plumes rose to an altitude of 2.5 km (8,200 ft) a.s.l. A thermal anomaly over the volcano was detected in satellite imagery during 7-8 and 10-11 August. Based on analyses of satellite imagery and information from KVERT, the Tokyo VAAC reported an eruption on 16 August. A subsequent notice stated that ash had dissipated. The Aviation Color Code level remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


4 August-10 August 2010

KVERT reported that during 30 July-6 August seismic activity from Karymsky was above background levels and suggested that possible ash plumes rose to an altitude of 2 km (6,700 ft) a.s.l. A thermal anomaly over the volcano was detected in satellite imagery during 29-30 July and 1-2 and 4 August. Imagery also showed ash plumes that drifted 17 km NE on 2 and 3 August. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


28 July-3 August 2010

KVERT reported that during 23-24 and 28 July seismic activity from Karymsky was above background levels and suggested that possible ash plumes rose to an altitude of 2 km (6,700 ft) a.s.l. Seismic data were not available other days during 25-30 July due to technical problems. A daily thermal anomaly was detected in satellite imagery. Imagery also showed ash plumes that drifted 15 km SE on 26 July. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


21 July-27 July 2010

KVERT reported that during 16-23 July seismic activity from Karymsky was above background levels and suggested that possible ash plumes rose to an altitude of 3 km (9,800 ft) a.s.l. A daily thermal anomaly was detected in satellite imagery. Imagery also showed ash plumes that drifted 58 km SW on 19 July and 85 km SE on 21 July. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


14 July-20 July 2010

KVERT reported that satellite imagery showed ash plumes from Karymsky drifting 30 km W and S on 7 and 8 July and a thermal anomaly over the volcano during 8-10 and 12 July. Seismic activity was above background levels during 12-14 July and suggested that possible ash plumes rose to an altitude of 3.3 km (10,800 ft) a.s.l. Seismic data were not available other days during 9-16 July due to technical problems. Based on analyses of satellite imagery, the Tokyo VAAC reported that on 19 July a possible eruption produced a plume that rose to an altitude of 1.5 km (5,000 ft) a.s.l. and drifted SW. Ash was noted and then later dissipated. A possible eruption was reported the next day, and again a subsequent satellite image showed that ash had dissipated within a few hours. The Aviation Color Code level remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


7 July-13 July 2010

KVERT reported that during 2-9 July seismic activity from Karymsky was above background levels and suggested that possible ash plumes rose to an altitude of 2 km (6,500 ft) a.s.l. A thermal anomaly was detected in satellite imagery on most days; cloud cover occasionally prevented views of the volcano. On 7 July ash plumes drifted 20 km S. Based on information from the Yelizovo Airport (UHPP), the Tokyo VAAC reported that on 13 July an ash plume rose to an altitude of 2.7 km (9,000 ft) a.s.l. and drifted W. The Aviation Color Code level remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


30 June-6 July 2010

KVERT reported that during 25 June-2 July seismic activity from Karymsky was above background levels and suggested that possible ash plumes rose to an altitude of 7 km (23,000 ft) a.s.l. A strong thermal anomaly was detected in satellite imagery on 27 June; cloud cover prevented views of the volcano on other days. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


23 June-29 June 2010

Based on analysis of satellite imagery, KVERT reported a thermal anomaly over the volcano during 17, 19-20, and 22-23 June. Small ash clouds 10 x 8 km and 12 x 5.5 km in dimension were seen E of the volcano on 17 and 23 June, respectively. Based on information from KEMSD, the Tokyo VAAC reported that an eruption on 29 June produced a plume that rose to an altitude of 7 km (23,000 ft) a.s.l. Ash was not identified on satellite imagery. The Aviation Color Code level remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


16 June-22 June 2010

KVERT reported that during 11-18 June seismic activity from Karymsky was above background levels. Seismic data suggested that possible ash plumes rose to an altitude of 5.2 km (17,000 ft) a.s.l. during 10-12 June and to an altitude of 3.9 km (12,800 ft) a.s.l. on 16 June. Satellite imagery analysis revealed ash plumes that drifted about 195 km E on 10 and 11 June and a thermal anomaly over the volcano on 11, 15, and 16 June. Small ash clouds drifted 22 km E on 17 June. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


9 June-15 June 2010

KVERT reported that during 4-11 June seismic activity from Karymsky was above background levels, and suggested that possible ash plumes rose to an altitude of 2.5 km (8,200 ft) a.s.l. on 6 June. Satellite imagery revealed a thermal anomaly over the volcano during 4-5 and 8 June. Based on information from KVERT and Yelizovo Airport (UHPP), and analyses of satellite imagery, the Tokyo VAAC reported that on 11 June an eruption produced an ash plume that rose to an altitude of 6.1 km (20,000 ft) a.s.l. and drifted NE and SE. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


2 June-8 June 2010

KVERT reported that during 28 May-4 June seismic activity from Karymsky was above background levels, suggesting that possible ash plumes rose to an altitude of 4 km (13,100 ft) a.s.l. Satellite imagery revealed a daily thermal anomaly over the volcano and ash plumes that drifted 30 km S on 1 June. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


26 May-1 June 2010

KVERT reported that during 21-28 May seismic activity from Karymsky was above background levels, suggesting that possible ash plumes rose to an altitude of 3 km (10,000 ft) a.s.l. Satellite imagery revealed a daily thermal anomaly over the volcano, and ash plumes that drifted 63 km S and W during 24-26 May. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


19 May-25 May 2010

KVERT reported that during 14-21 May seismic activity from Karymsky was above background levels, suggesting that possible ash plumes rose to an altitude of 2.5 km (8,200 ft) a.s.l. Satellite imagery revealed a thermal anomaly over the volcano during 13-17 and 19-20 May, and an ash plume that drifted 18 km NE on 17 May. Based on information from the Yelizovo Airport (UHPP) and KVERT, the Tokyo VAAC reported that on 22 and 25 May ash plumes rose to an altitude of 4.3 km (14,000 ft) a.s.l. and drifted SW and W. The Aviation Color Code level remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


12 May-18 May 2010

KVERT reported that during 7-14 May seismic activity from Karymsky was above background levels, suggesting that possible ash plumes rose to altitudes of 2-4.6 km (6,600-15,100 ft) a.s.l. Satellite imagery revealed a thermal anomaly over the volcano during 8 and 11-13 May. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


5 May-11 May 2010

KVERT reported that during 30 April-7 May seismic activity from Karymsky was above background levels, suggesting that possible ash plumes rose to an altitude of 3 km (10,000 ft) a.s.l. Satellite imagery revealed a thermal anomaly over the volcano during 28 April-2 May. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


28 April-4 May 2010

KVERT reported that during 23-30 April seismic activity from Karymsky was above background levels, suggesting that possible ash plumes rose to an altitude of 3 km (10,000 ft) a.s.l. Volcanologists working in the area on 20 and 21 April saw gas-and-steam plumes containing some ash rise to an altitude of 3 km (10,000 ft) a.s.l. At night, Strombolian activity was occasionally observed. Satellite imagery revealed a daily thermal anomaly over the volcano. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


21 April-27 April 2010

KVERT reported that on 16 and 23 April seismic activity from Karymsky was at background levels. During 17-22 April, seismicity was above background levels and a thermal anomaly was seen in satellite imagery. On 17 and 18 April, seismic data suggested that ash plumes rose to an altitude of 2 km (6,500 ft) a.s.l. Ash plumes were seen in satellite imagery drifting 40-130 km SE on 17 and 21 April. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


14 April-20 April 2010

KVERT reported that seismic activity from Karymsky was above background on 11 and 13-15 April. Satellite imagery revealed a thermal anomaly from the volcano during 11-12 April. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


7 April-13 April 2010

KVERT reported that seismic activity from Karymsky was above background on 2 and 3 April and at background levels during 4-9 April. Satellite imagery revealed a thermal anomaly from the volcano during 3-4 and 6 April. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


31 March-6 April 2010

KVERT reported that during 26 March-2 April seismic activity from Karymsky was above background levels, possibly indicating ash plumes rising to an altitude of 4.1 km (13,500 ft) a.s.l. Satellite imagery revealed an intense daily thermal anomaly from the volcano, and ash plumes that drifted about 250 km generally E during 28-29 and 31 March. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


24 March-30 March 2010

KVERT reported that seismic activity from Karymsky increased on 25 March. Two days later, an intense thermal anomaly over the volcano was seen in satellite imagery. During 28-29 March ash plumes were seen in the area of the volcano. The Aviation Color Code level was raised to Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


10 March-16 March 2010

KVERT reported that during 5-12 March seismic activity from Karymsky was slightly above background levels, possibly indicating weak ash explosions. A weak daily thermal anomaly was detected in satellite imagery. Based on information from KEMSD, the Tokyo VAAC reported that an eruption on 12 March produced a plume that rose to an altitude of 5.8 km (19,000 ft) a.s.l. Ash was not identified on satellite imagery. The Level of Aviation Color Code remained at Yellow.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


24 February-2 March 2010

KVERT reported that seismic activity from Karymsky was occasionally above background levels during 19-26 February, possibly indicating weak ash explosions. Analyses of satellite imagery revealed a weak thermal anomaly over the volcano on 22 and 24 February; cloud cover prevented observations on other days. The Aviation Color Code level was lowered to Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


17 February-23 February 2010

KVERT reported that seismic activity from Karymsky was above background levels during 11-14 February, possibly indicating weak ash explosions. Analyses of satellite imagery revealed a thermal anomaly over the volcano during that time and also on 15 February. Seismic activity was at background levels during 15-19 February. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


10 February-16 February 2010

KVERT reported that during 5-12 February seismic activity from Karymsky was above background levels and possibly indicated weak ash explosions. Analyses of satellite imagery revealed a thermal anomaly over the volcano on 8 February; meteorological clouds prevented observations on other days. The Aviation Color Code level remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


3 February-9 February 2010

KVERT reported that during 29 January-5 February seismic activity from Karymsky was above background levels and possibly indicated weak ash explosions. Analyses of satellite imagery revealed a thermal anomaly over the volcano on 28 January and 1 February. The Level of Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


27 January-2 February 2010

KVERT reported that during 22-29 January seismic activity from Karymsky was above background levels and possibly indicated weak ash explosions. Analyses of satellite imagery revealed a thermal anomaly over the volcano during 21-25 and 27 January. The Level of Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


20 January-26 January 2010

KVERT reported that during 15-22 January seismic activity from Karymsky was above background levels, possibly indicating that ash plumes rose to an altitude of 3 km (10,000 ft) a.s.l. Analyses of satellite imagery revealed a daily thermal anomaly over the volcano. The Level of Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


13 January-19 January 2010

KVERT reported that during 8-15 January seismic activity from Karymsky was above background levels, possibly indicating that ash plumes rose to an altitude of 3 km (10,000 ft) a.s.l. Analyses of satellite imagery revealed an almost daily thermal anomaly over the volcano and ash plumes that drifted 113 km SE on 12 and 13 January. The Level of Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


6 January-12 January 2010

KVERT reported that a thermal anomaly over Karymsky was detected in satellite imagery during 30-31 December 2009, 1 January and 4-7 January 2010. Seismic activity was above background levels during 1-8 January. The Level of Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


30 December-5 January 2010

KVERT reported that a thermal anomaly over Karymsky was detected in satellite imagery during 24-26 and 29-30 December. Gas-and-steam bursts were seen by volcanologists on 28 December. The Level of Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


23 December-29 December 2009

KVERT reported that during 18-25 December a thermal anomaly over Karymsky was detected in satellite imagery. Seismic data were not available due to technical problems. Based on information from the Yelizovo Airport (UHPP), the Tokyo VAAC reported that on 25 December an ash plume rose to an altitude of 6.7 km (22,000 ft) a.s.l. and drifted SE. KVERT noted three linear areas of ash deposits 10 km SE of Karymsky. The Level of Aviation Color Code remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


16 December-22 December 2009

KVERT reported that during 11-13 and 17 December a thermal anomaly over Karymsky was detected in satellite imagery. Seismic activity was above background levels on 12 and 13 December; data were not available during 11-21 December due to technical problems. The Level of Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


9 December-15 December 2009

KVERT reported that analyses of satellite imagery revealed a thermal anomaly from Karymsky during 3 and 6-7 December; ash deposits extended 45 km SE on 6 December. A new lava flow was seen on the S flank on 8 December. Seismic data were seldom available due to technical problems. The Level of Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


2 December-8 December 2009

KVERT reported that seismic activity at Karymsky was above background levels during 27-30 November and 1 December; data were not available during 2-4 December due to technical problems. Analyses of satellite imagery revealed a daily thermal anomaly and ash plumes that drifted 165 km E during 29-30 November and 1-2 December. The Level of Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


25 November-1 December 2009

KVERT reported that seismic activity at Karymsky was above background levels on 23 and 25 November; data were not available on the other days during 20-27 November due to technical reasons. Elevated seismicity possibly indicated that ash plumes rose to an altitude of 3.8 km (12,500 ft) a.s.l. Analyses of satellite imagery revealed a daily thermal anomaly and ash plumes that drifted 120 km E on 23 and 25 November. The Level of Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


18 November-24 November 2009

KVERT reported that seismic activity at Karymsky was above background levels on 12, 14, and 16 November; data were not available on the other days during 13-20 November due to technical reasons. Elevated seismicity possibly indicated that ash plumes rose to an altitude of 3 km (9,900 ft) a.s.l. Analyses of satellite imagery revealed a daily thermal anomaly and ash plumes that drifted 130 km E during 12-14 and 17 November. The Level of Aviation Color Code remained at Orange. Based on information from KEMSD, the Tokyo VAAC reported that on 23 November an eruption produced a plume that rose to an altitude of 4 km (13,000 ft) a.s.l.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


11 November-17 November 2009

KVERT reported that seismic activity at Karymsky was above background levels during 5-9 November, a possible indication that ash plumes rose to an altitude of 3.7 km (12,100 ft) a.s.l. Analyses of satellite imagery during 5-12 November revealed almost daily thermal anomalies and ash plumes that drifted 190 km E during 8-12 November. The Level of Aviation Color Code remained at Orange. Based on information from the Yelizovo Airport (UHPP), the Tokyo VAAC reported that on 14 November an ash plume rose to an altitude of 3.7 km (12,000 ft) a.s.l. and drifted E.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


4 November-10 November 2009

KVERT reported that seismic activity at Karymsky was above background levels during 29-31 October; data was not collected during 1-4 November due to technical reasons. Seismic signals possibly indicated that ash plumes rose to an altitude of 3.7 km (12,100 ft) a.s.l. on 31 October and 5 November. Analyses of satellite imagery during 29 October-5 November revealed almost daily thermal anomalies and intermittent ash plumes that drifted 180 km E. The Level of Aviation Color Code remained at Orange. Based on information from KEMSD, the Tokyo VAAC reported that eruptions on 8 and 10 November produced plumes that rose to altitudes of 3-3.4 km (10,000-11,000 ft) a.s.l. Ash was not identified on satellite imagery.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


28 October-3 November 2009

KVERT reported that seismic activity at Karymsky was above background levels during 23-27 and 30 October, a possible indication that ash plumes rose to an altitude of 3.7 km (12,100 ft) a.s.l. No seismic data was available on 22 and 28 October. Analyses of satellite imagery revealed an ash plume that drifted 120 km E on 23 October, and a thermal anomaly during 23-26 and 29 October. The Level of Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


21 October-27 October 2009

KVERT reported that seismic activity at Karymsky was above background levels during 16-23 October and possibly indicated that ash plumes rose to an altitude of 3.9 km (12,800 ft) a.s.l. The Level of Aviation Color Code remained at Orange. Based on information from KEMSD, the Tokyo VAAC reported that eruptions during 24-25 October produced plumes that rose to altitudes of 3.4-3.7 km (11,000-12,000 ft) a.s.l. Ash was not identified on satellite imagery.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


14 October-20 October 2009

KVERT reported that seismic activity at Karymsky was elevated above background levels during 9-16 October and possibly indicated that ash plumes rose to an altitude of 3.7 km (12,100 ft) a.s.l. On 12 October, volcanologists doing fieldwork saw an ash plume rise to an altitude of 3.5 km (11,500 ft) a.s.l. The Level of Aviation Color Code remained at Orange. Based on information from KEMSD, the Tokyo VAAC reported that on 20 October eruptions produced plumes that rose to altitudes of 3-3.7 km (10,000-12,000 ft) a.s.l. Ash was not identified on satellite imagery.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


7 October-13 October 2009

KVERT reported that seismic activity at Karymsky was above background levels during 2-9 October and possibly indicated weak ash explosions. On 7 October, field scientists saw an ash plume that rose to an altitude of 3.5 km (11,500 ft) a.s.l. and drifted SSE. The Level of Aviation Color Code remained at Orange. Based on information from KEMSD, the Tokyo VAAC reported that on 9 October an eruption produced a plume that rose to an altitude of 3 km (10,000 ft) a.s.l.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


30 September-6 October 2009

KVERT reported that seismic activity at Karymsky was elevated above background levels during 25 September-2 October and possibly indicated weak ash explosions. Analyses of satellite imagery revealed a weak thermal anomaly over the lava dome on 28 September; cloud cover prevented observations on the other days. Scientists saw fumarolic activity during an overflight on 1 October. The Level of Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


23 September-29 September 2009

KVERT reported that on 17 and 22 September a weak thermal anomaly over Karymsky was detected in satellite imagery. During 19-23 September seismic activity was above background levels; analyses of the seismic data indicated that ash plumes possibly rose to an altitude of 2 km (6,600 ft) a.s.l. during 21-22 September, and to an altitude of 4.5 km (14,800 ft) a.s.l. on 23 September. Scientists flying near Karymsky in a helicopter on 22 September saw ash plumes that rose to an altitude of 1.7 km (5,600 ft) a.s.l. and drifted E. The Level of Aviation Color Code was raised to Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


16 September-22 September 2009

On 22 September, KVERT raised the Level of Aviation Color Code for Karymsky to Yellow because seismic activity increased. The seismic network likely detected ash bursts that possibly produced plumes that rose to altitudes less than 2 km (6,600 ft) a.s.l.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


26 August-1 September 2009

KVERT reported that seismic activity at Karymsky was slightly above background levels on 20 and 21 August and at background levels during 22-31 August. Analysis of satellite imagery revealed a small thermal anomaly over the volcano on 21 August. The Level of Concern Color Code was lowered to Green on 31 August.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


17 June-23 June 2009

Satellite data reported by KVERT indicated a weak thermal anomaly over the volcano on 4-6 and 13-14 June. Gas-and-steam plumes extended 30 km SE on 4 June. The Level of Concern Color Code remained at Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


3 June-9 June 2009

Based on information from KEMSD, the Tokyo VAAC reported that on 6 June an eruption from Karymsky produced a plume that rose to an altitude of 3.4 km (11,000 ft) a.s.l. Ash was not identified on satellite imagery.

Source: Tokyo Volcanic Ash Advisory Center (VAAC)


29 April-5 May 2009

Based on analysis of satellite imagery, KVERT reported that a weak thermal anomaly over Karymsky was noted on 26 April. The Level of Concern Color Code was lowered to Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


22 April-28 April 2009

KVERT reported that fumarolic activity from Karymsky was seen by volcanologists during 17-24 April. Analysis of satellite imagery revealed a thermal anomaly on the volcano on 17 April. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


15 April-21 April 2009

KVERT reported that seismic activity at Karymsky was not analyzed during 9-17 April due to technical reasons. Cloud cover prevented observations on the other days. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


8 April-14 April 2009

KVERT reported that seismic activity at Karymsky was above background levels on 2 and 3 April and at background levels on 4 April; no data was collected during 5-10 April due to technical reasons. Analysis of satellite imagery revealed a weak thermal anomaly on the volcano on 5 April. Fumarolic activity was seen by volcanologists on 9 April. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


1 April-7 April 2009

KVERT reported that seismic activity at Karymsky was above background levels during 27 March-3 April. A thermal anomaly on the volcano was seen in satellite imagery on 31 March. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


25 March-31 March 2009

KVERT reported that seismic activity at Karymsky was elevated during 19-22 March and at background levels during 23-24 March. Based on interpretations of seismic data, ash plumes likely rose to an altitude of 2 km (6,600 ft) a.s.l. On 26 March, ash deposits extending 30 km S of the volcano were seen on satellite imagery. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


18 March-24 March 2009

KVERT reported that seismic activity at Karymsky was above background levels on 12 and 18 March; no data was collected during 13-17 March due to technical reasons. According to reports from Yelizovo Airport, pilots saw an ash plume that rose to an altitude of 3.9 km (12,800 ft) a.s.l. and drifted E on 12 March. Analysis of satellite imagery revealed a thermal anomaly on the lava dome during 12-14 and 16-17 March, and ash plumes that drifted 200 km in easterly directions during 12-13 and 16-17 March. The Level of Concern Color Code remained at Orange.

Based on information from the Yelizovo Airport, the Tokyo VAAC reported that on 19 March an ash plume rose to an altitude of 4.6 km (15,000 ft) a.s.l. and drifted W.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


11 March-17 March 2009

KVERT reported that seismic activity at Karymsky was at background levels during 6-13 March. Based on interpretations of seismic data, ash plumes likely rose to an altitude of 3 km (10,000 ft) a.s.l. Analysis of satellite imagery revealed a thermal anomaly on the lava dome during 6-12 March, and ash plumes that drifted in multiple directions during the reporting period. The Level of Concern Color Code remained at Orange.

Based on information from KVERT and pilot observations, the Tokyo VAAC reported that on 13 March an ash plume rose to an altitude of 4 km (13,000 ft) a.s.l. and drifted E.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


4 March-10 March 2009

KVERT reported that seismic activity at Karymsky was at background levels during 27 February-6 March. Based on interpretations of seismic data, ash plumes likely rose to an altitude of 3.5 km (11,500 ft) a.s.l. Analysis of satellite imagery revealed a thermal anomaly on the lava dome during 27-28 February and 1-4 March, and an ash plume that drifted 120 km SE on 4 March. Ash deposits on the volcano were noted. On 3 March, pilots reported an ash plume that rose to an altitude of 3.5 km (11,500 ft) a.s.l. and drifted E. The Level of Concern Color Code remained at Orange.

Based on information from KEMSD and analysis of satellite imagery, the Tokyo VAAC reported that an eruption on 6 March produced a plume that rose to an altitude of 3 km (10,000 ft) a.s.l.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


25 February-3 March 2009

KVERT reported that seismic activity at Karymsky was at background levels during 21-28 February. Based on interpretations of seismic data, ash plumes likely rose to an altitude of 3.7 km (12,100 ft) a.s.l. On 24 February, pilots reported a dark plume near the volcano that rose to altitudes of 2.1 km (6,900 ft) a.s.l. Analysis of satellite imagery revealed a thermal anomaly on the lava dome during 21 and 24-25 February, and an ash plume that drifted 150 km NE on 21 February. The Level of Concern Color Code remained at Orange.

Based on information from KEMSD and analysis of satellite imagery, the Tokyo VAAC reported that eruptions on 28 and 29 February produced plumes that rose to altitudes of 3-3.4 km (10,000-11,000 ft) a.s.l. and drifted W. On 3 March, an ash plume reported by the Yelizovo Airport (UHPP) rose to an altitude of 3.7 km (12,000 ft) a.s.l. and drifted E.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


18 February-24 February 2009

KVERT reported that during 13-20 January seismic data from Karymsky was unavailable and clouds prevented satellite image observations. The Level of Concern Color Code remained at Orange. Based on information from KEMSD and observations of satellite imagery, the Tokyo VAAC reported that during 21-22 February eruptions produced plumes that rose to altitudes of 3-4.3 km (10,000-14,000 ft) a.s.l.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


11 February-17 February 2009

KVERT reported that seismic activity at Karymsky was above background levels during 6-9 February and at background levels during 10-13 February. Ash explosions produced plumes that rose to an altitude of 2.5 km (8,200 ft) a.s.l. Clouds prevented satellite observations. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


4 February-10 February 2009

KVERT reported that seismic activity at Karymsky was above background levels during 1-4 February and at background levels on the other days during 30 January-6 February. Analysis of satellite imagery revealed a weak thermal anomaly in the crater on 30 January; clouds prohibited views during the rest of the reporting period. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


28 January-3 February 2009

KVERT reported that seismic activity at Karymsky was at background levels during 23-30 January. Analysis of satellite imagery revealed a weak thermal anomaly in the crater on 23 and 24 January; clouds prevented observations on other days. The Level of Concern Color Code remained at Orange.

Based on information from KVERT and KEMSD, the Tokyo VAAC reported that during 2-3 February eruptions produced plumes that rose to altitudes of 3.4-3.7 km (11,000-12,000 ft) a.s.l. Ash was not identified on satellite imagery.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


21 January-27 January 2009

KVERT reported that seismic activity at Karymsky was above background levels on 15 January and at background levels during 16-23 January. Weak ash-and-gas explosions possibly occurred on 15 January. Analysis of satellite imagery revealed a thermal anomaly in the crater during 18-19 and 21 January. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


14 January-20 January 2009

KVERT reported that during 10-14 January seismic activity at Karymsky was above background levels and ash-and-gas explosions possibly occurred; seismic activity was not evaluated on 8 and 9 January due to technical issues. Analysis of satellite imagery revealed a thermal anomaly in the crater during 8-12 and 14-15 January. Gas-and-steam plumes drifted 25 km SE and NE on 8 and 12 January.

Based on analysis of satellite imagery and information from the Yelizovo Airport (UHPP), the Tokyo VAAC reported that on 16 January an ash plume rose to an altitude of 3.7 km (12,000 ft) a.s.l. and drifted SE.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


7 January-13 January 2009

KVERT reported that during 2-9 January seismic activity from Karymsky was not evaluated due to technical issues. Analysis of satellite imagery revealed a thermal anomaly in the crater on 7 January; clouds prevented observations on the other days. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


31 December-6 January 2009

KVERT reported during 26 December-2 January seismic activity from Karymsky was not evaluated due to technical issues. Clouds prevented satellite observations of the volcano. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


24 December-30 December 2008

KVERT reported that on 18 and 20 December seismic activity at Karymsky was at background levels; possible explosions may have generated ash-and-gas plumes to an altitude of 3 km (9,800 ft) a.s.l. on 18 December. Analysis of satellite imagery revealed a thermal anomaly in the crater during 21-26 December and ash plumes that drifted 80 km E during 21-23 December. Ash deposits 26 km long to the SE and 9 km long to the NE were noted on 21 December. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


17 December-23 December 2008

KVERT reported that during 12-19 December seismic activity at Karymsky was at background levels; possible explosions may have generated ash-and-gas plumes to an altitude of 2.5 km (8,200 ft) a.s.l. Analysis of satellite imagery revealed a thermal anomaly in the crater during 12-14 and 17 December and an ash plume that drifted 240 km SE on 16 December. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


10 December-16 December 2008

KVERT reported that during 5 and 9-10 December seismic activity at Karymsky was at background levels; possible explosions may have generated ash-and-gas plumes to an altitude of 2.8 km (9,200 ft) a.s.l. Volcanologists occasionally saw ash plumes rise to altitudes of 2 km (6,600 ft) a.s.l. and drift E. Ash deposits on the E flank were more than 5 km long. Analysis of satellite imagery revealed a thermal anomaly in the crater on 8 December and an ash plume that drifted ESE. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


3 December-9 December 2008

KVERT reported that seismic activity at Karymsky was at background levels during 27-30 November; possible explosions may have generated ash-and-gas plumes to an altitude of 3.7 km (12,100 ft) a.s.l. Analysis of satellite imagery revealed a thermal anomaly in the crater during 27-29 November and 1 December. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


26 November-2 December 2008

KVERT reported that seismic activity at Karymsky was at background levels during 21-23 and 26-28 November. Seismicity increased above background levels on 24 and 25 November; possible explosions may have generated ash plumes to an altitude of 3 km (10,000 ft) a.s.l. during 23-25 November. During an overflight, scientists observed gas-and-steam plumes that rose to altitudes of 2-2.4 km (6,600-7,900 ft) a.s.l. Analysis of satellite imagery revealed a thermal anomaly in the crater during 20, 22, and 24-26 November. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


19 November-25 November 2008

KVERT reported that seismic activity at Karymsky increased above background levels during 13-17 November; possible explosions may have generated ash plumes to an altitude of 3.3 km (10,800 ft) a.s.l. Analysis of satellite imagery revealed a thermal anomaly in the crater during 13-16 November and an ash plume that drifted 28 km E on 15 November. Clouds prevented observations on the other days during 14-21 November. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


12 November-18 November 2008

KVERT reported that seismic activity at Karymsky increased above background levels during 11-12 November. On 10 November, ash plumes were seen on satellite imagery drifting 38 km E and 28 km ENE. During 10-11 November, possible explosions may have generated ash plumes to an altitude of 3.8 km (12,500 ft) a.s.l. Also during 10-11 November, analysis of satellite imagery revealed a thermal anomaly in the crater; clouds prevented observations on the other days. The Level of Concern Color Code remained at Orange.

Based on analysis of satellite imagery, information from the Yelizovo Airport (UHPP), and KEMSD notices, the Tokyo VAAC reported that an ash plume rose to an altitude of 2.7 km (9,000 ft) a.s.l. on 12 November. On 12 and 15 November, eruptions generated plumes that rose to an altitude of 3.4 km (11,000 ft) a.s.l.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


5 November-11 November 2008

KVERT reported that seismic activity at Karymsky was above background levels during 31 October and 2-3 November and at background levels on the other days during 1-7 November. Possible explosions on 31 October, and 2 and 3 November may have generated ash plumes to an altitude of 3.8 km (12,500 ft) a.s.l. Analysis of satellite imagery revealed a thermal anomaly in the crater on 31 October, and 2 and 6 November; clouds prevented observations on the other days. The Level of Concern Color Code remained at Orange.

Based on analysis of satellite imagery and information from KEMSD, the Tokyo VAAC reported that an eruption generated a plume to an altitude of 3.7 km (12,000 ft) a.s.l. on 11 November.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


29 October-4 November 2008

KVERT reported that seismic activity at Karymsky was above background levels during 24-27 October and at background levels during 28-31 October. Possible explosions may have generated ash plumes to an altitude of 2.8 km (9,200 ft) a.s.l. Analysis of satellite imagery revealed a thermal anomaly in the crater on 23, 24, and 28 October; clouds prevented observations on the other days. The Level of Concern Color Code remained at Orange.

Based on analysis of satellite imagery and information from KEMSD, the Tokyo VAAC reported that an eruption generated a plume to an altitude of 4 km (13,000 ft) a.s.l. on 2 November.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


22 October-28 October 2008

KVERT reported that seismic activity at Karymsky was above background levels on 17 and 20 October and at background levels on the other days during 18-24 October. Possible explosions may have generated ash plumes to an altitude of 3.2 km (10,500 ft) a.s.l. Analysis of satellite imagery revealed a thermal anomaly in the crater on 17, 19, and 21 October; clouds prevented observations on the other days. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


15 October-21 October 2008

KVERT reported that seismic activity at Karymsky was above background levels during 10-17 October. Possible explosions may have generated ash plumes to an altitude of 3.1 km (10,200 ft) a.s.l. Analysis of satellite imagery on 13 October revealed a thermal anomaly in the crater and an ash plume about 5 km wide that drifted 32 km NNE. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


8 October-14 October 2008

KVERT reported that seismic activity at Karymsky was above background levels during 3-10 October. Possible explosions during 4-9 October may have generated ash plumes to an altitude of 4 km (13,100 ft) a.s.l. Analysis of satellite imagery revealed a thermal anomaly in the crater during 3-4 and 8-9 October and cloudy conditions on the other days. The Level of Concern Color Code remained at Orange.

Based on analysis of satellite imagery and information from KEMSD, the Tokyo VAAC reported that an eruption generated a plume to an altitude of 3.4 km (11,000 ft) a.s.l. on 11 October.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


1 October-7 October 2008

KVERT reported that seismic activity at Karymsky was above background levels during 26 September-3 October. Possible explosions during 25-27 September and 1-2 October may have generated ash plumes to an altitude of 3.3 km (10,800 ft) a.s.l. Analysis of satellite imagery revealed a thermal anomaly in the crater on 29 September and cloudy conditions on the other days. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


24 September-30 September 2008

KVERT reported that seismic activity at Karymsky was above background levels during 19-26 September. Possible daily explosions may have generated ash plumes to an altitude of 3.8 km (12,500 ft) a.s.l. Analysis of satellite imagery revealed a thermal anomaly in the crater on 18 and 23 September. The Level of Concern Color Code remained at Orange.

Based on analysis of satellite imagery and information from KEMSD, the Tokyo VAAC reported that eruptions generated plumes to altitudes of 3-3.4 km (10,000-11,000 ft) a.s.l. on 24 and 28 September.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


17 September-23 September 2008

KVERT reported that seismic activity at Karymsky was above background levels during 12-19 September. Possible daily explosions may have generated ash plumes to an altitude of 3.2 km (10,500 ft) a.s.l. Analysis of satellite imagery revealed that ash plumes drifted more than 80 km SE on 15 and 16 September and a thermal anomaly was present in the crater during 13 and 15-17 September. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


10 September-16 September 2008

KVERT reported that seismic activity at Karymsky was above background levels during 5-12 September. Possible explosions may have generated ash plumes to an altitude of 3.2 km (10,500 ft) a.s.l. Analysis of satellite imagery revealed ash plumes drifting SE on 6 September and a thermal anomaly in the crater during 6-7 September. The Level of Concern Color Code remained at Orange.

Based on analysis of satellite imagery, information from KVERT, and pilot reports, the Tokyo VAAC reported that on 16 September an ash plume rose to an altitude of 3 km (10,000 ft) a.s.l.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


3 September-9 September 2008

KVERT reported that seismic activity at Karymsky was above background levels during 29 August-5 September. Possible explosions may have generated ash plumes to an altitude of 3.8 km (12,500 ft) a.s.l. Analysis of satellite imagery revealed ash plumes drifting SE on 29 August and a thermal anomaly in the crater during 29-31 August. The Level of Concern Color Code remained at Orange.

Based on analysis of satellite imagery, the Tokyo VAAC reported that on 7 September an ash plume rose to an altitude of 2.1 km (7,000 ft) a.s.l. and drifted E.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


27 August-2 September 2008

KVERT reported that seismic activity at Karymsky was at background levels during 21-23 August and above background levels during 24-27 August. Possible explosions may have generated ash plumes to an altitude of 3.2 km (10,500 ft) a.s.l. Analysis of satellite imagery revealed a thermal anomaly in the crater during 24 and 26-28 August and that an ash plumes drifted SE on 27 August. The Level of Concern Color Code remained at Orange.

Based on analysis of satellite imagery and information from KEMSD, the Tokyo VAAC reported that on 29 August and 2 September eruption plumes rose to an approximate altitude of 3 km (10,000 ft) a.s.l.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


20 August-26 August 2008

KVERT reported that seismic activity at Karymsky was at typical levels during 14-15, 17, and 19-20 August. They also reported possible explosions during 14-15 and 17-20 August. Volcanic tremor was detected on 14 and 20 August. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


13 August-19 August 2008

KVERT reported that seismic activity at Karymsky was at background levels on 9 and 13 August and slightly above background levels on the other days during 8-15 August. Based on interpretations of seismic data, possible ash plumes rose to an altitude of 3.1 km (10,200 ft) a.s.l. on 8, 10, 11, and 14 August. Analysis of satellite imagery revealed a thermal anomaly in the crater on 11 August; clouds inhibited views on other days. The Level of Concern Color Code remained at Orange.

Based on analysis of satellite imagery and information from KEMSD, the Tokyo VAAC reported that on 14 August an eruption plume rose to an altitude of 2.7 km (9,000 ft) a.s.l.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


6 August-12 August 2008

KVERT reported that seismic activity at Karymsky was above background levels during 1-8 August and possibly indicated that explosions produced ash plumes to an altitude of 3.1 km (10,200 ft) a.s.l. Observations of satellite imagery revealed a thermal anomaly in the crater on 2 August; clouds inhibited views on other days. The Level of Concern Color Code remained at Orange.

Based on observations of satellite imagery and information from KEMSD, the Tokyo VAAC reported that on 11 August an eruption plume rose to an altitude of 3.4 km (11,000 ft) a.s.l.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


30 July-5 August 2008

KVERT reported that seismic activity at Karymsky was above background levels during 25 July-1 August and possibly indicated that explosions produced ash plumes to an altitude of 3.7 km (12,100 ft) a.s.l. According to area volcanologists and pilots, ash plumes rose to altitudes of 5-6 km (16,400-19,700 ft) a.s.l. on 25 July. Observations of satellite imagery revealed a daily thermal anomaly in the crater. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


23 July-29 July 2008

KVERT reported that seismic activity at Karymsky was above background levels on 18, 19, and 23 July and at background levels during 20-22 and 24-25. Explosive activity that produced ashfall was seen by area volcanologists. Interpretation of the seismic data suggested that on 19, 21, and 23 July possible ash-and-gas plumes rose to altitudes of 3 km (10,000 ft) a.s.l. Observations of satellite imagery revealed a thermal anomaly in the crater during 19-21 July. The Level of Concern Color Code was raised to Orange.

Based on information from the Yelizovo Airport (UHPP), the Tokyo VAAC reported that on 25 July an ash plume rose to an altitude of 6.1 km (20,000 ft) a.s.l. and drifted NE.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


25 June-1 July 2008

KVERT reported that seismic activity at Karymsky was at background levels during 20-27 June but may have indicated weak explosions daily. Observations of satellite imagery revealed a thermal anomaly in the crater on 20 and 25 June. The Level of Concern Color Code was lowered to Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


18 June-24 June 2008

KVERT reported that seismic activity at Karymsky was at background levels during 13-20 June but may have indicated weak explosions daily. Observations of satellite imagery revealed a thermal anomaly in the crater on 12 June; clouds obscured views on other days during the reporting period. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


11 June-17 June 2008

KVERT reported that seismic activity at Karymsky was slightly above background levels on 6 June and at background during 7-13 June. Gas-and-ash explosions that produced plumes to an altitude of 2.6 km (8,500 ft) a.s.l. may have occurred on 6 June. Observations of satellite imagery revealed thermal anomalies in the crater on 6, 7, and 11 June. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


4 June-10 June 2008

KVERT reported that seismic activity at Karymsky was slightly above background levels during 1-4 June and at background levels the other days during 30 May-6 June. Gas-and-ash explosions that produced plumes to an altitude of 2.3 km (7,500 ft) a.s.l. may have occurred during days of slightly elevated seismicity. Observations of satellite imagery revealed thermal anomalies in the crater during 1-4 June and a gas-and-steam plume that drifted 61 km SE on 2 June. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


28 May-3 June 2008

KVERT reported that seismic activity at Karymsky was slightly above background levels during 22, 25-26, and 28 May and at background levels the other days during 23-30 May. Gas-and-ash explosions that produced plumes to an altitude of 3.4 km (11,200 ft) a.s.l. may have occurred during days of slightly elevated seismicity. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


21 May-27 May 2008

KVERT reported that seismic activity at Karymsky was slightly above background levels on 15, 16, and 21 May and at background levels the other days during 16-23 May. Gas-and-ash explosions that produced plumes to an altitude of 3.4 km (11,200 ft) a.s.l. may have occurred during 15-16 and 21-22 May. Observations of satellite imagery revealed that on 16 and 20 May a thermal anomaly was present in the crater. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


14 May-20 May 2008

KVERT reported that seismic activity at Karymsky was above background levels on 11 and 12 May and at background levels the other days during 9-16 May. Gas-and-ash explosions that produced plumes to an altitude of 3.1 km (10,200 ft) a.s.l. may have occurred on 11 and 12 May. Observations of satellite imagery revealed that on 13 May a thermal anomaly was present in the crater and a steam plume drifted 7 km ESE. An ash plume at an altitude of 2 km (6,600 ft) a.s.l. was spotted on 15 May and drifted E. The Level of Concern Color Code remained at Orange.

Based on observations of sateliite imagery, the Tokyo VAAC reported that on 20 May an eruption plume rose to an altitude of 3.4 km (11,000 ft) a.s.l.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


7 May-13 May 2008

KVERT reported that seismic activity at Karymsky was slightly above background levels on 3 and 7 May and at background levels the other days during 2-9 May; gas-and-ash explosions may have occurred on 3 and 7 May. Based on pilot observations, an ash plume rose to an altitude of about 5 km (16,400 ft) a.s.l. on 6 May. The Level of Concern Color Code remained at Orange.

Based on information from KEMSD and KVERT, pilot reports, observations of satellite imagery, the Tokyo VAAC reported that ash plumes rose to altitudes of 4.6 km (15,000 ft) a.s.l. and 3.4 km (11,000 ft) a.s.l. on 9 and 13 May, respectively.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


30 April-6 May 2008

KVERT reported that seismic activity at Karymsky was at background levels during 25 April-2 May. Possible activity was characterized by gas-and-ash plumes that rose to altitudes of 2-2.5 km (6,600-8,200 ft) a.s.l. Based on seismic interpretation, a gas-and-ash explosion may have occurred on 26 April. Observations of satellite imagery revealed that a thermal anomaly was present in the crater on 25, 27, and 28 April. Based on airport data and information from KEMSD, the Tokyo VAAC reported that an eruption plume rose to altitudes of 3.7 km (10,000-17,000 ft) a.s.l. during 6-7 May. Ash was not detected on satellite imagery. The Level of Concern Color Code remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


23 April-29 April 2008

KVERT reported that seismic activity at Karymsky was above background levels during 18-25 April. Observations of satellite imagery revealed that a thermal anomaly was present in the crater on 18 and 21 April. Based on seismic interpretation, weak ash-and-gas explosions may have occurred on 20 and 21 April and produced plumes to altitudes of 2.6-3.4 km (8,500-11,200 ft) a.s.l. Volcanologists reported seeing ash plumes to an altitude of 2 km (6,700 ft) a.s.l. during 20-23 April. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


16 April-22 April 2008

KVERT reported that seismic activity at Karymsky was above background levels during 11-18 April. Based on seismic interpretation, weak ash-and-gas explosions or hot avalanches may have occurred daily during 10-14. Observations of satellite imagery revealed that a thermal anomaly was present in the crater on 12 and 13 April. Based on information from KEMSD, the Tokyo VAAC reported that an eruption plume rose to an altitude of 3.7 km (12,000 ft) a.s.l. on 22 April. Ash was not detected on satellite imagery. The Level of Concern Color Code remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


9 April-15 April 2008

KVERT reported that seismic activity at Karymsky was above background levels during 4-11 April. Based on seismic interpretation, weak ash-and-gas explosions or hot avalanches may have occurred daily during the reporting period. Observations of satellite imagery revealed that a thermal anomaly was present in the crater during 4-6 April and an ash plume drifted 70-80 km ESE on 8 April. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


2 April-8 April 2008

KVERT reported that seismic activity at Karymsky was above background levels during 28-29 March and slightly above background levels during 30 March-4 April. Pilots observed ash plumes to altitudes of 5-7 km (16,400-23,000 ft) a.s.l. during 28-29 March. Based on seismic interpretation, ash plumes possibly rose to an altitude of 2.5 km (8,200 ft) a.s.l. on 2 April and weak ash explosions or avalanches may have occurred daily during the reporting period. Observations of satellite imagery revealed that a thermal anomaly was present in the crater on 28 March and 1, 2, and 3 April; an ash plume drifted S on 3 April. Ash deposits were noted in areas about 20 km E, 70 km SW, and 45-50 km S. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


26 March-1 April 2008

KVERT reported that seismic activity at Karymsky was slightly above background levels during 23 and 25-26 March, and at background levels during 21-22, 24, and 27-28 March. Based on seismic interpretation, ash plumes possibly rose to an altitude of 3.3 km (10,800 ft) a.s.l. on 22 March. Weak ash explosions or avalanches possibly occurred during 23-26 March. Based on observations of satellite imagery and information from KVERT, the Tokyo VAAC reported that eruption plumes rose to altitudes of 3-7 km (10,000-23,000 ft) a.s.l. during 28-29 March. The Level of Concern Color Code remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


19 March-25 March 2008

KVERT reported that seismic activity at Karymsky was slightly above background levels during 13-16 March and at background levels during 17-19 March. Weak ash explosions or avalanches possibly occurred on 15 March when observations of satellite imagery revealed an ash plume drifting 40 km SE. On 16 March, ash deposits 15-20 km in length mantled the snow to the NE and ESE. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


12 March-18 March 2008

KVERT reported that seismic activity at Karymsky was slightly above background levels during 7-14 March. Observations of satellite imagery revealed that a weak thermal anomaly was present in the crater on 9 and 12 March. On 13 March, an ash plume rose to an altitude of 2.5 km (8,200 ft) a.s.l. Ash deposits on the snow about 3-4 km SE of the summit were observed on satellite imagery. The Level of Concern Color Code was raised from Yellow to Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


5 December-11 December 2007

KVERT reported that seismic activity at Karymsky was slightly above background levels during 30 November-7 December. A decrease in activity based on observations of satellite imagery during November and December 2007 prompted KVERT to lower the Level of Concern Color Code to Yellow on 7 December.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


28 November-4 December 2007

KVERT reported that seismic activity at Karymsky was at background levels during 24-25 November and slightly above background levels on 26 November. Seismic data was unavailable on the other days during 23-30 November. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


7 November-13 November 2007

KVERT reported that seismic activity at Karymsky was above background levels during 1-5 November and at background levels during 6-9 November. Based on seismic interpretation, ash explosions occurred and an ash plume may have risen to an altitude of 5 km (16,400 ft) a.s.l. on 2 November. Observations of satellite imagery revealed that a small thermal anomaly was present at the summit on 6 November; cloud cover obscured observations on other days. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


31 October-6 November 2007

KVERT reported that seismic activity at Karymsky was above background levels during 25-28 October and at background levels during 29 October-2 November. Based on seismic interpretation, ash explosions occurred. Cloud cover obscured observations of satellite imagery. The Level of Concern Color Code remained at Orange.

Based on information from KEMSD, the Tokyo VAAC reported that an eruption plume rose to an altitude of 5.2 km (17,000 ft) a.s.l. during 18-21 October. Ash was not detected on satellite imagery.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


24 October-30 October 2007

KVERT reported that seismic activity at Karymsky was above background levels during 19-26 October. Based on seismic interpretation, ash plumes may have risen to an altitude of 3.5 km (11,500 ft) a.s.l. during the reporting period. Observations of satellite imagery revealed that a thermal anomaly was present in the crater during 19-20 and 22-24 October, and ash plumes drifted SE and S during 19-20 and 24 October.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


17 October-23 October 2007

KVERT reported that seismic activity at Karymsky was above background levels during 12-19 October. Based on seismic interpretation, ash plumes may have risen to an altitude of 4.3 km (14,100 ft) a.s.l. during the reporting period. Observations of satellite imagery revealed that a thermal anomaly was present in the crater during 14-18 October and ash plumes drifted E during 15-18 October. The Level of Concern Color Code remained at Orange.

Based on observations of satellite imagery, the Tokyo VAAC reported that ash plumes rose to altitudes of 4.3-5.8 km (14,000-19,000 ft) a.s.l. during 18-21 October. Plumes drifted SE.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


10 October-16 October 2007

KVERT reported that seismic activity at Karymsky was above background levels during 5-12 October. Based on seismic interpretation, ash plumes may have risen to an altitude of 5.2 km (17,100 ft) a.s.l. during the reporting period. Observations of satellite imagery revealed that a thermal anomaly was present in the crater and ash plumes drifted E during 4-8 and 10-11 October. The Level of Concern Color Code remained at Orange.

Based on pilot reports and observations of satellite imagery, the Tokyo VAAC reported that ash plumes rose to altitudes of 4.6-5.2 km (15,000-17,100 ft) a.s.l. on 12 and 16 October. Plumes drifted SE and E.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


3 October-9 October 2007

KVERT reported that seismic activity at Karymsky was above background levels during 28 September-5 October. Based on seismic interpretation, ash plumes may have risen to an altitude of 3.5 km (11,500 ft) a.s.l. during the reporting period. Observations of satellite imagery revealed that a thermal anomaly was present in the crater during 27 and 29-30 September and 1 and 3 October. Ash plumes drifted SE and E on 30 September and 1 and 3 October. The Level of Concern Color Code remained at Orange.

Based on information from KEMSD and KVERT, observations in the Petropavlovsk-Kamchatsky Flight Information Region (FIR), and pilot reports, the Tokyo VAAC reported that ash plumes rose to an altitude of 3-3.7 km (10,000-12,000 ft) a.s.l. on 5, 7, and 8 October. Plumes drifted E and NE.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


26 September-2 October 2007

KVERT reported that seismic activity at Karymsky was above background levels during 21-28 September. Based on seismic interpretation, ash plumes may have risen to an altitude of 3.5 km (11,500 ft) a.s.l. during 20, 22, and 24-26 September. Observations of satellite imagery revealed that a thermal anomaly was present in the crater during 20-21 and 24-26 September and ash plumes drifted E during 24-27 September. The Level of Concern Color Code remained at Orange.

Based on information from KEMSD and pilot reports, the Tokyo VAAC reported that ash plumes rose to an altitude of 3.7 km (12,000 ft) a.s.l. on 28 September and 4.3 km (14,000 ft) a.s.l. on 2 October.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


19 September-25 September 2007

KVERT reported that seismic activity at Karymsky was above background levels during 14-21 September. Observations of satellite imagery revealed that ash plumes drifted SE on 15 September and a thermal anomaly was present in the crater during 13-15 and 17-19 September. Based on seismic interpretation, ash plumes may have risen to an altitude of 3.3 km (10,800 ft) a.s.l. during 15-16 and 20 September. The Level of Concern Color Code remained at Orange.

Based on pilot reports, information from KEMSD, observations of satellite imagery, and observations in the Petropavlovsk-Kamchatsky Flight Information Region (FIR), the Tokyo VAAC reported that ash plumes rose to altitudes of 4.6 km (15,000 ft) a.s.l. on 21 September and 3.4 km (11,000 ft) a.s.l. on 25 September.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


12 September-18 September 2007

KVERT reported that seismic activity at Karymsky was above background levels during 7-14 September. Based on seismic interpretation, ash plumes may have risen to an altitude of 3.5 km (11,500 ft) a.s.l. during the reporting period. Observations of satellite imagery revealed that ash plumes drifted E and SE during 7-10 September and a thermal anomaly was present in the crater during 8-10 and 11 September. The Level of Concern Color Code remained at Orange.

Based on information from KVERT, the Tokyo VAAC reported that ash plumes rose to an altitude of 3.4 km (11,000 ft) a.s.l. on 15 September. Ash was not identified on satellite imagery.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


5 September-11 September 2007

Seismic activity at Karymsky was above background levels during 31 August-7 September. Based on seismic interpretation, ash plumes may have risen to altitudes of 5.5-6 km (18,000-19,700 ft) a.s.l. Observations of satellite imagery revealed that a thermal anomaly was present in the crater during the reporting period. Ash plumes were also present and drifted NE on 31 August, and SE and NW during 1-3 September. The Level of Concern Color Code remained at Orange.

Based on information from KEMSD, pilot reports, and observations in the Petropavlovsk-Kamchatsky Flight Information Region (FIR), the Tokyo VAAC reported that ash plumes rose to altitudes of 3-7.3 km (10,000-24,000 ft) a.s.l. during 5-10 September. Ash was not identified on satellite imagery.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


29 August-4 September 2007

Seismic activity at Karymsky was above background levels during 24-31 August, with 100-280 shallow earthquakes occurring daily. Based on seismic interpretation, ash plumes may have risen to an altitude of 5.9 km (19,400 ft) a.s.l. Observations of satellite imagery revealed that a thermal anomaly was present in the crater on 24 and 30 August. Ash plumes were also present and drifted SE on 24 August and NE during 28-30 August. The Level of Concern Color Code remained at Orange.

Based on information from KEMSD, satellite imagery, observations in the Petropavlovsk-Kamchatsky Flight Information Region (FIR), and KVERT, the Tokyo VAAC reported that ash plumes rose to altitudes of 4.3-6.1 km (14,000-20,000 ft) a.s.l. during 31 August and 2-3 September. Ash was not identified on satellite imagery on 31 August.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


22 August-28 August 2007

Seismic activity at Karymsky was above background levels during 17-24 August, with 300-800 shallow earthquakes occurring daily. Based on seismic interpretation, ash plumes may have risen to an altitude of 5.7 km (18,700 ft) a.s.l. Observations of satellite imagery revealed that a thermal anomaly was present in the crater on 20 and 23 August. The Level of Concern Color Code remained at Orange.

Based on information from KEMSD, eruption plumes rose to estimated altitudes of 5.8 km and 4 km (19,000 ft and 13,000 ft) a.s.l. on 23 and 25 August, respectively. Ash was not identified on satellite imagery.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


15 August-21 August 2007

Seismic activity at Karymsky was above background levels during 10-17 August, with 350-600 shallow earthquakes occurring daily. Based on seismic interpretation, ash plumes may have risen to an altitude of 3 km (9,800 ft) a.s.l. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


8 August-14 August 2007

Seismic activity at Karymsky was above background levels during 3-10 August, with 300-800 shallow earthquakes occurring daily. Based on seismic interpretation, ash plumes may have risen to an altitude of 3 km (9,800 ft) a.s.l. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


1 August-7 August 2007

Seismic activity at Karymsky was above background levels during 27 July-3 August, with 150-600 shallow earthquakes occurring daily. Based on seismic interpretation, ash plumes may have risen to an altitude of 3 km (9,800 ft) a.s.l. Observations of satellite imagery revealed that a thermal anomaly was present in the crater on 31 July and 2 August and gas-and-steam plumes drifted SW on 2 August. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


25 July-31 July 2007

A KVERT report issued for Karymsky on 27 July stated the following, "The eruption of the volcano continues. Ash explosions up to 6 km (or 19,700 ft.) a.s.l. are possible at any time. The activity of the volcano could affect low-flying aircraft in the vicinity of the volcano."

Based on a report from unstated source and posted by the Tokyo VAAC, on 28 July ash plumes rose to estimated altitudes of ~6 km (20,000 ft) a.s.l., but the plume could not be identified in satellite analysis. The Level of Concern Color Code remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


18 July-24 July 2007

Seismic activity at Karymsky was above background levels during 13-20 July, with 500-900 shallow earthquakes occurring daily. Based on seismic interpretation, ash plumes may have risen to altitudes as high as 4.5 km (14,800 ft) a.s.l. Ash plumes drifted SE and SW and a thermal anomaly in the crater were visible on satellite imagery during 14-18 July. Plumes rose to estimated altitudes of 4.5 km (14,800 ft) a.s.l. based on atmospheric profiles. The Level of Concern Color Code remained at Orange

Based on satellite imagery, the Tokyo VAAC reported that an ash plume rose to an altitude of 5.2 (17,000 ft) a.s.l. on 20 July and drifted SW.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


11 July-17 July 2007

During 6-13 July, seismic activity at Karymsky was above background levels. Based on seismic interpretation, ash plumes may have risen to altitudes of 2.5 km and 3.8 km (8,200 ft and 12,500 ft) a.s.l. on 7 and 10 July, respectively. A thermal anomaly in the crater was visible on satellite imagery during 10-11 July. The Level of Concern Color Code remained at Orange.

Based on pilot reports, satellite imagery, observations in the Petropavlovsk-Kamchatsky Flight Information Region (FIR), and KEMSD, the Tokyo VAAC reported that an ash plume rose to an altitude of 9.1 (30,000 ft) a.s.l. on 11 July. Based on information from KEMSD, the Tokyo VAAC reported that an ash plume rose to an altitude of 3 km (10,000 ft) a.s.l. on 16 July. Ash was not identified on satellite imagery.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


4 July-10 July 2007

During 29 June-6 July, seismic activity at Karymsky was above background levels. The seismic data indicated that ash plumes may have risen to altitudes of 2.7 and 4.6 km (8,900 and 15,100 ft) a.s.l. on 1 and 4 July, respectively. A thermal anomaly in the crater was visible on satellite imagery on 30 June and 1 July. The Level of Concern Color Code remained at Orange.

Based on information from KEMSD, the Tokyo VAAC reported that an eruption plume rose to an altitude of 2.4 km (8,000 ft) a.s.l. on 8 July. Ash was not identified on satellite imagery.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


27 June-3 July 2007

During 22-29 June, seismic activity at Karymsky was above background levels and possibly indicated ash plumes to an altitude of 4.7 km (15,400 ft) a.s.l. all days. A steam-and-gas plume was visible on satellite imagery on 27 June.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


20 June-26 June 2007

During 15-22 June, seismic activity at Karymsky was above background levels and possibly indicated that ash explosions produced plumes to an altitude of 5.8 km (19,000 ft) a.s.l. all days.

Based on information from KEMSD, the Tokyo VAAC reported that eruption plumes rose to 3-4.6 km (10,000-15,000 ft) a.s.l. during 24-25 June. Ash was not identified on satellite imagery.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


13 June-19 June 2007

Seismic activity at Karymsky indicated that ash plumes possibly rose to an altitude of 6.8 km (22,300 ft) a.s.l. during 8-13 June. Seismicity was above background levels during 8-15 June. On 11 June, ash plumes were visible on satellite imagery drifting S and SW. A thermal anomaly was visible in the crater during 9-10 and 12-13 June. The Level of Concern Color Code remained at Orange

Based on information from KEMSD, the Tokyo VAAC reported that eruption plumes rose to 3-6.1 km (10,000-20,000 ft) a.s.l. during 13-14 and 17 June. Ash was not identified on satellite imagery.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


6 June-12 June 2007

Seismic activity at Karymsky was slightly above background levels during 1-8 June. According to visual observations, a gas-and-steam plume was visible on 5 June. KVERT lowered the Level of Concern Color Code from Orange to Yellow.

On 9 June, seismic data indicated that an explosion may have produced an ash plume that rose to an altitude of 3.8 km (12,500 ft) a.s.l. Strong seismicity and further possible explosions or avalanches followed the event. Clouds obscured summit observations. The Level of Concern Color Code was raised to Orange.

Based on information from KEMSD, the Tokyo VAAC reported that eruption plumes rose to 3.7-7 km (12,000-23,000 ft) a.s.l. during 9-12 June. Ash was not identified on satellite imagery.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


30 May-5 June 2007

Seismic activity at Karymsky was slightly above background levels during 25 May-1 June. Visual observations were not possible due to cloud cover. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


23 May-29 May 2007

Seismic activity at Karymsky was slightly above background levels during 18-25 May. A possible ash plume rose to an altitude of 2 km (6,400 ft) a.s.l. on 18 May. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


9 May-15 May 2007

Seismic activity at Karymsky was above background levels during 4-11 May. No thermal anomalies and ash plumes were seen on satellite imagery. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


2 May-8 May 2007

Seismic activity at Karymsky was above background levels during 27 April-4 May. A thermal anomaly was visible on satellite imagery; ash plumes were absent. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


25 April-1 May 2007

Seismic activity at Karymsky was above background levels during 20-27 April. Based on seismic interpretation, satellite imagery, and visual observation, ash plumes rose to altitudes of 4-4.5 km (13,100-14,800 ft) a.s.l. on 21 April and drifted SE. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


18 April-24 April 2007

Seismic activity at Karymsky was above background levels during 13-20 April. Ash plumes from explosions occurred during 13-20 April and may have reached altitudes of 4 km (13,000 ft) a.s.l. during 15-16 April and drifted E. Based on visual observation, a gas-and-steam plume rose to an altitude of 2.5 km (8,200 ft) a.s.l. on 19 April and a possible new lava flow was seen on the SW flank. A thermal anomaly in the crater was detected on satellite imagery during 14-16 April. Based on pilot reports, satellite imagery, and observations in the Petropavlovsk-Kamchatsky Flight Information Region (FIR), the Tokyo VAAC reported that an ash plume rose to an altitude of 7.6 (25,000 ft) a.s.l. and drifted SE. The Level of Concern Color Code remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


11 April-17 April 2007

Seismic activity at Karymsky was above background levels during 10-13 April. Ash plumes from explosions may have reached altitudes of 4 km (13,000 ft) a.s.l. during the reporting period. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


4 April-10 April 2007

Seismic activity at Karymsky was above background levels during 4-10 April, with 100-250 shallow earthquakes occurring daily. Ash plumes may have reached altitudes of 4.5 km (14,800 ft) a.s.l. during the reporting period. Based on satellite imagery and information from the Petropavlovsk-Kamchatsky Flight Information Region (FIR), AVO, pilot reports, and KEMSD, the Tokyo VAAC reported that eruption plumes rose to altitudes of 3.4-7.6 km (11,000-25,000 ft) a.s.l. on 5, 9, and 10 April. Plumes drifted SE and E on 9 and 10 April, respectively. A thermal anomaly in the crater was detected on satellite imagery during 4-5 and 7-10 April. The Level of Concern Color Code remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


28 March-3 April 2007

Based on satellite imagery and information from the Petropavlovsk-Kamchatsky Flight Information Region (FIR), the Tokyo VAAC reported that an eruption plume from Karymsky rose to an altitude of 3 km (10,000 ft) a.s.l. on 31 March.

Source: Tokyo Volcanic Ash Advisory Center (VAAC)


21 March-27 March 2007

Seismic activity at Karymsky increased on 23 March. Ash plumes may have reached altitudes of 4.6 km (15,000 ft) a.s.l., although no visual observations were reported. Diffuse emissions were seen on satellite imagery.

Source: US Geological Survey Alaska Volcano Observatory (AVO)


21 February-27 February 2007

Seismic activity at Karymsky was above background levels during 16-22 February, with 100-180 shallow earthquakes occurring daily. Ash plumes may have reached altitudes of 3.0 km (9,900 ft) a.s.l. during the reporting period. A thermal anomaly in the crater was detected on satellite imagery during 16-19 February. Based on satellite imagery and information from KEMSD, the Tokyo VAAC reported that eruption plumes rose to altitudes of 4.0-5.2 km (13,000-17,000 ft) a.s.l. on 22 and 27 February. The Level of Concern Color Code remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


14 February-20 February 2007

Seismic activity at Karymsky was above background levels during 9-16 February, with 50-200 shallow earthquakes occurring daily. Minor explosions may have occurred and a thermal anomaly in the crater was detected on satellite imagery. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


7 February-13 February 2007

Seismic activity at Karymsky was above background levels during 2-9 February, with 80-400 shallow earthquakes occurring daily. Ash plumes may have reached altitudes of 4 km (13,000 ft) a.s.l. during the reporting period. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


31 January-6 February 2007

Seismic activity at Karymsky was above background levels during 26 January-2 February, with 250-300 shallow earthquakes occurring daily. Ash plumes may have reached altitudes of 3.0 km (9,900 ft) a.s.l. during the reporting period. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


24 January-30 January 2007

Seismic activity at Karymsky was above background levels during 19-26 January, with 100-250 shallow earthquakes occurring daily. Ash plumes may have reached altitudes of 3.5 km (11,500 ft) a.s.l. during 7-8 January. A thermal anomaly in the crater was detected during the reporting period. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


17 January-23 January 2007

Seismic activity at Karymsky was above background levels during 12-19 January, with 100-450 shallow earthquakes occurring daily. Weak ash explosions possibly occurred during 14-16 January. Based on satellite imagery, the Tokyo VAAC reported that an eruption plume rose to an altitude of 3.4 km (11,000 ft) a.s.l. on 23 January. The Level of Concern Color Code remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


10 January-16 January 2007

Activity at Karymsky continued during 5-12 January, with 100-350 shallow earthquakes occurring daily. Ash plumes may have reached altitudes of 2.5 km (8,200 ft) a.s.l. during 7-8 January. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


3 January-9 January 2007

Activity at Karymsky continued during 29 December-5 January, with 100-300 shallow earthquakes occurring daily. Weak explosions possibly produced ash plumes during 1-3 January. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


27 December-2 January 2007

Activity at Karymsky continued during 27 December-2 January, with 100-130 shallow earthquakes occurring daily. Ash plumes may have reached altitudes of 2 km (6,600 ft) a.s.l. A thermal anomaly in the crater was detected during 21-22 December. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


20 December-26 December 2006

Seismic data from Karymsky were not available during 15-22 December. Based on ground and pilot observations, ash plumes rose to 7 km (23,000 ft) a.s.l. and drifted E and a thermal anomaly in the crater was detected on satellite imagery during the reporting period. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


13 December-19 December 2006

Seismic data from Karymsky were not available during 8-15 December. Ash plumes were observed drifting in all directions during the reporting period. A thermal anomaly in the crater was detected on satellite imagery during 8-12 December. Pilots reported that an ash plume rose to an altitude of 7 km (23,000 ft) a.s.l. and drifted E on 17 December. Based on satellite data, the Tokyo VAAC reported that an ash plume rose to an altitude of 8.2 km (27,000 ft) a.s.l. and drifted E. The Level of Concern Color Code remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


6 December-12 December 2006

Seismic data from Karymsky was not available during 1-8 December. Pilots from international airlines reported that on 2 December ash plumes rose to 6.9 km (22,600 ft) a.s.l. and drifted E. Plumes also drifted E on 5-6 December. A thermal anomaly in the crater was detected on 3 and 6-7 December. Plumes were visible on satellite imagery on 9 December, extending as far as 15 km W. The Level of Concern Color Code remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


29 November-5 December 2006

Seismic data from Karymsky was unavailable during 29 November-5 December. A large thermal anomaly in the crater was detected on 26, 27, and 29 November. On 29 November ash plumes drifted NE. Based on pilot reports and satellite imagery, the Tokyo VAAC reported that during 1-2 December, ash plumes rose to 7 km (23,000 ft) a.s.l. and drifted N and E. The Level of Concern Color Code remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


22 November-28 November 2006

Seismic data from Karymsky was available during 18-19 November. Seismicity was elevated above background levels and the number of shallow earthquakes was more than 90 per day. Explosions produced ash plumes that possibly reached altitudes of 2.5 km (8,200 ft) a.s.l. based on seismic data. A thermal anomaly in the crater was detected on 18-19 and 21-23 November. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


15 November-21 November 2006

Seismic data from Karymsky was available during 10-11 November. Seismicity was elevated above background levels and the number of shallow earthquakes ranged 130-420 per day. Based on seismic data, explosions produced ash plumes that possibly reached altitudes of 2.5 km (8,200 ft) a.s.l. Plumes were visible on satellite imagery on 13 November and drifted W. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


8 November-14 November 2006

Seismic data from Karymsky were not available during 4-10 November, except on 2, 3, and 7 November, when seismicity was elevated above background levels. Explosions produced ash plumes that may have reached altitudes of 3 km (9,800 ft) a.s.l. Based on satellite imagery, plumes drifted NE on 2 November and SE during 6 and 7 November. A thermal anomaly in the crater was detected on 2-3 and 5-7 November. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


1 November-7 November 2006

Activity at Karymsky continued during 26-29 October, with 150-550 shallow earthquakes occurring daily. Based on interpretations of seismic data and satellite imagery, ash plumes may have reached altitudes of 2-4.8 km (6,600-15,700 ft) a.s.l. An ash cloud extended 70 km to the NE on 28 October. A thermal anomaly in the crater was detected on 27-28 and 30-31 October and 2 November. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


25 October-31 October 2006

Seismic activity increased at Karymsky during 21-27 October, with 350-550 shallow earthquakes occurring daily. Explosions produced ash plumes that may have reached altitudes of 2.5-5.0 km (8,200-16,400 ft) a.s.l. and drifted E, NE, and SE. Staff from the Institute of Volcanology and Seismology (IVS) observed a series of ash bursts that produced plumes to 2.0 km (6,600 ft) a.s.l. on 25 October. A thermal anomaly in the crater was detected on satellite imagery during 19-24 October.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


18 October-24 October 2006

Seismic data and satellite observations reported by KVERT indicated that moderate ash eruptions from Karymsky continued during 14-20 October. Weak local shallow earthquakes occurred at a rate of 100-290 per day. Ash explosions that were thought to have risen to about 3.6 km (11,800 ft) a.s.l. drifted E on 17-19 October. A thermal anomaly from the volcanic crater was noted on 13, 15, and 17-19 October. Based on a pilot observation, the Tokyo VAAC reported that on 23 October an ash plume rose to 5.2 km (17,000 ft) a.s.l. and drifted E. The Level of Concern Color Code remained at Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


11 October-17 October 2006

Activity at Karymsky continued during 11-17 October, with 100-190 shallow earthquakes occurring daily. Based on interpretations of seismic data and satellite observations, ash plumes may have reached altitudes of 2.5 km (8,200 ft) a.s.l. A thermal anomaly in the crater was detected on 7 and 12 October. According to the Tokyo VAAC, an ash plume rose to 3.7 km (12,000 ft) a.s.l. on 17 October. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


4 October-10 October 2006

KVERT reported on 6 October that activity at Karymsky continued during 30 September-6 October, with 120-190 shallow earthquakes occurring daily. Explosions produced ash plumes that possibly reached altitudes of 2.5 km (8,200 ft) a.s.l. A thermal anomaly in the crater was detected on 30 September, and 2 and 4 October. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


27 September-3 October 2006

Seismic data and satellite observations reported by KVERT indicated that moderate ash eruptions of Karymsky continued during 23-29 September. Weak local shallow earthquakes occurred at a rate of 100-250 per day. Ash explosions were thought to have risen to about 4.5 km (14,800 ft) a.s.l. on 22 September, and up to 2.5 km (8,200 ft) a.s.l. on the other days of that week. A thermal anomaly over the volcanic crater was noted on 23 and 26-27 September. The Level of Concern Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


20 September-26 September 2006

Seismic data and satellite observations reported by KVERT indicate that moderate ash eruptions were continuing from Karymsky during 16-22 September. There have been 40-200 weak shallow earthquakes recorded each day. A thermal anomaly over the crater was noted on 18-19 September. Based on visual observations, volcanologists in the area on 19 September estimated ash explosions to have reached altitudes of 2.3 km (7,500 ft) a.s.l. Ash plumes extending 16-40 km SW and SE were noted at satellite images on 18-19 September.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


13 September-19 September 2006

KVERT reported on 15 September that the Concern Color Code level at Karymsky was raised from Yellow to Orange. Approximately 50-100 shallow earthquakes occurred daily during 9-15 September. During 8-10 and 12 September, a thermal anomaly was detected in the crater. An ash plume was visible on satellite imagery extending ~140 km SE on 13 September. On 17 and 19 September, eruption plumes rose to altitudes of 2.7 km (9,000 ft) a.s.l. and drifted SE.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


6 September-12 September 2006

KVERT reported on 8 September that the Concern Color Code level at Karymsky was lowered from Orange to Yellow. Approximately 30-90 shallow earthquakes occurred daily. During 1-4 September, a thermal anomaly was detected in the crater.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


30 August-5 September 2006

Activity at Karymsky continued during 26 August-1 September, with 30-70 shallow earthquakes occurring daily. Based on interpretations of seismic data, ash plumes reached altitudes of 3 km (10,000 ft) a.s.l. A thermal anomaly in the crater was detected on 26 and 28 August. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


23 August-29 August 2006

Activity at Karymsky continued during 23-29 August, with 30-100 shallow earthquakes occurring daily. Based on interpretations of seismic data, ash plumes reached altitudes of 3.5 km (11,500 ft) a.s.l. A thermal anomaly in the crater was observed on 23 August. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


16 August-22 August 2006

Activity at Karymsky continued during 12-18 August, with 60-500 shallow earthquakes occurring daily. Based on interpretations of seismic data, ash plumes reached altitudes of 3.7 km (12,140 ft) a.s.l. According to the Airport Meteorological Center (AMC) in Yelizovo, on 16 August a pilot saw an ash plume rise to ~6.5 km (21,300 ft.) a.s.l. and drift NE. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


9 August-15 August 2006

Based on interpretations of seismic and satellite data, KVERT reported that during 5-11 August explosions from Karymsky produced ash plumes that rose to altitudes of 3.5 km (11,500 ft) a.s.l. and extended NW. Approximately 100-250 shallow earthquakes occurred daily. A thermal anomaly was present in the crater during the reporting period. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


2 August-8 August 2006

Activity at Karymsky continued during 29 July-4 August, with 100-300 shallow earthquakes occurring daily. Based on interpretations of seismic data, ash plumes reached altitudes of 3.1 km (10,200 ft) a.s.l. According to the Tokyo VAAC, the Kamchatkan Experimental and Methodical Seismological Department (KEMSD) reported that on 4 August ash plumes reached altitudes of 3.7 km (12,000 ft) a.s.l. A thermal anomaly in the crater was observed. Karymsky remained at Concern Color Code Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


26 July-1 August 2006

Based on interpretations of seismic and satellite data, KVERT reported that ash explosions from the summit crater of Karymsky continued during 26-28 July. On 24 July, volcanologists reported that an ash plume rose to an altitude of 6 km (19,700 ft) a.s.l. A large thermal anomaly over the crater was visible on satellite imagery. KVERT warned that activity from the volcano could affect nearby low-flying aircraft. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


19 July-25 July 2006

Based on interpretations of seismic data from Karymsky during 15-21 July, KVERT reported that ash plumes reached altitudes of 6 km (19,700 ft) a.s.l. According to the Tokyo VAAC, the Kamchatkan Experimental and Methodical Seismological Department (KEMSD) reported that on 23 and 24 July ash plumes reached altitudes of 6.7 km (22,000 ft) a.s.l. Approximately 180-400 shallow earthquakes occurred daily during the reporting period. A thermal anomaly in the crater was observed during 15-20 July. Karymsky remained at Concern Color Code Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


12 July-18 July 2006

Activity at Karymsky continued during 8-14 July, with 250-1000 shallow earthquakes occurring daily. Based on interpretations of seismic data, ash plumes reached altitudes of 5 km (16,400 ft) a.s.l. A thermal anomaly in the crater was observed on 9 July. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


5 July-11 July 2006

Based on interpretations of seismic data from Karymsky during 1-7 July, ash plumes reached altitudes of 4 km (13,100 ft) a.s.l. According to the Tokyo VAAC, the Kamchatkan Experimental and Methodical Seismological Department (KEMSD) reported that on 10 July ash plumes reached altitudes of ~5.2 km (17,000 ft) a.s.l. Approximately 100-350 shallow earthquakes occurred daily during 29 June-3 July and increased to 1000 per day during 4-5 July. A thermal anomaly in the crater was observed on 30 June, 1 July, and 6 July. Karymsky remained at Concern Color Code Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


28 June-4 July 2006

Activity at Karymsky continued during 23-30 June, with 100-350 shallow earthquakes occurring daily. Based on interpretations of seismic data, ash plumes reached altitudes of 3.5 km (11,500 ft) a.s.l. According to the Tokyo VAAC, the Kamchatkan Experimental and Methodical Seismological Department (KEMSD) reported that on 1 and 3 July ash plumes reached altitudes of 3.7 km (12,000 ft) a.s.l. A thermal anomaly in the crater was observed during 24-27 June. Karymsky remained at Concern Color Code Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


21 June-27 June 2006

Activity at Karymsky continued during 21-27 June, with 200-700 shallow earthquakes occurring daily. Based on pilot reports, on 19 June ash plumes rose up to 4 km (13,100 ft) a.s.l. and traveled NE. A thermal anomaly in the crater was observed during 17,19, and 22 June. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


14 June-20 June 2006

Activity at Karymsky continued during 10-16 June, with 400-600 shallow earthquakes occurring daily. Ash plumes up to 5 km (16,400 ft) a.s.l. traveling SE were observed by pilots. A large thermal anomaly over the crater was visible on satellite imagery. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


31 May-6 June 2006

During 27 May to 2 June, ash explosions from the summit of Karymsky continued. A large thermal anomaly in the crater was observed during 27-31 May. KVERT warned that activity from the volcano could affect nearby low-flying aircraft. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


24 May-30 May 2006

Based on interpretations of seismic and satellite data, KVERT reported that ash explosions from the summit crater of Karymsky continued during 20-26 May. On 27 May, the Tokyo VAAC reported an ash plume an elevation of 3.7 km (12,000 ft) a.s.l. KVERT warned that activity from the volcano could affect nearby low-flying aircraft.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


17 May-23 May 2006

During 12-19 May, eruptive activity continued at Karymsky. Based on interpretations of seismic and satellite data, ash plumes rose to a height of 8 km (26,200 ft) a.s.l. Ash plumes extended for about 50 km to the S and NE. KVERT warned that activity from the volcano could affect nearby low-flying aircraft. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


10 May-16 May 2006

During 5-12 May, eruptive activity continued at Karymsky. Based on interpretations of seismic data, ash plumes rose to a height of ~5.3 km (17,400 ft) a.s.l. A thermal anomaly was present on satellite data when the crater was visible. Ash plumes drifted SE. KVERT warned that activity from the volcano could affect nearby low-flying aircraft. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


26 April-2 May 2006

Intermittent eruptive activity continued at Karymsky during 21-28 April. Based on interpretations of seismic data, ash plumes rose to a height of ~3.8 km (12,500 ft) a.s.l. during the report week. Satellite imagery showed a large thermal anomaly at the volcano's crater, and numerous ash plumes and deposits extending 10-200 km SE and E of the volcano. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


12 April-18 April 2006

Strombolian-to-Vulcanian activity continued at Karymsky during 7-14 April. Satellite imagery showed ash plumes extending ~40-145 km E and SE of the volcano, and a large thermal anomaly at the volcano's crater. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


22 March-28 March 2006

During 17-24 March, Strombolian activity continued at Karymsky. Several ash plumes were visible on satellite imagery at a height of ~4 km (13,100 ft) a.s.l. and extended SE and E. A thermal anomaly was seen at the volcano during periods of visibility. About 40-450 small earthquakes occurred daily. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


8 March-14 March 2006

Strombolian activity continued at Karymsky during 3-10 March. A thermal anomaly over the volcanic crater was visible on satellite imagery during the entire week. Numerous ash plumes extending up to 150 km SE and E of the volcano were also visible on satellite imagery. On 9 March, a pilot reported an ash plume at a height of ~3 km (9,850 ft) a.s.l. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


1 March-7 March 2006

During 24 February to 3 March, Strombolian activity continued at Karymsky. A large thermal anomaly was visible at the volcano's crater during the entire week. Numerous ash plumes were visible on satellite imagery, extending as far as 140 km NE and E. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


22 February-28 February 2006

During 17-24 February, Strombolian activity continued at Karymsky. Satellite imagery showed a large thermal anomaly at the volcano's crater and numerous ash plumes extending as far as 117 km. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


15 February-21 February 2006

During 10-17 February, a large thermal anomaly was visible at Karymsky's crater and numerous ash plumes were visible on satellite imagery. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


1 February-7 February 2006

According to reports from pilots of local airlines, ash emissions from Karymsky rose to 4-5 km (13,100-16,400 ft) a.s.l. during 30-31 January. The ash plumes extended 13-29 km from the volcano to the SW and SE, respectively. A thermal anomaly was visible at the lava dome during 27 January to 3 February, except when the volcano was obscured by clouds on the 28th. KVERT warned that activity from the volcano could affect nearby low-flying aircraft. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


18 January-24 January 2006

Seismic activity indicated that ash explosions from the summit crater of Karymsky continued during 14-20 January 2006. Ash plumes extending 6-9 km S from the volcano were registered on 12 January. A thermal anomaly over the dome was noted during 13-15 January. According to seismic data on 14-15 January, two possible ash plumes rose up to 3.0-3.4 km (9,800-11,200 feet) a.s.l. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


28 December-3 January 2006

KVERT reported on 30 December that a new 60- to 80-m diameter cone formed at Karymsky's summit. A small lava dome that was 20-30 m in diameter was noted in the crater of the cone. During 23-30 December, many weak, shallow earthquakes were recorded at the volcano. Interpretations of seismic data suggested that seven ash plumes rose 2.5-4 km (8,200-13,100 ft) a.s.l. during 24 and 26-27 December. Ash plumes extended mainly E, SE, and occasionally SW of the volcano. KVERT reported that ash emissions could affect low-flying aircraft in the vicinity of the volcano. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


21 December-27 December 2005

Interpretations of seismic data from Karymsky suggested that ten ash plumes rose to ~3.6 km (11,800 ft) a.s.l. during 16-23 December. KVERT volcanologists reported that during 17-21 December, ash plumes rose 2.5-3 km (8,200-9,800 ft) a.s.l. and extended WSW and ENE of the volcano. They warned that such activity could affect low-flying aircraft in the vicinity of the volcano. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


14 December-20 December 2005

Seismicity at Karymsky during 9-16 December indicated that growth of the lava dome in the summit crater continued. Ash plumes were visible on satellite imagery on 9 and 10 December. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


7 December-13 December 2005

Seismicity at Karymsky remained above background levels during 1-2 December, and there were no seismic data during 3-9 December. Ash clouds were visible on satellite imagery extending SE on 6 and 7 December. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


16 November-22 November 2005

The lava dome in Karymsky's crater continued to grow during 11-18 November. No seismic data were available after 10 November. A thermal anomaly was visible at the volcano on 15 and 17 November. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


9 November-15 November 2005

Seismicity was above background levels at Karymsky during 4-11 November, when five gas-and-steam plumes with some ash may have reached heights of 3-3.5 km (9,850-11,500 ft) a.s.l. The lava dome inside the volcano's crater continued to grow. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


2 November-8 November 2005

Seismicity was above background levels at Karymsky during 28 October to 4 November. Based on interpretations of seismic data, three gas plumes containing some ash possibly rose 3-3.8 km (9,850-12,500 ft) a.s.l. during 29-31 October and 1 November. Ash plumes were visible on satellite imagery extending NE on 31 October and 2 November. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


26 October-1 November 2005

During 21-28 October, seismicity at Karymsky was above background levels. Based on interpretations of seismic data, five ash-and-gas plumes may have reached heights of 2.5-3.5 km (8,200-11,500 ft) a.s.l. on several days. A thermal anomaly at the volcano was visible on satellite imagery. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


19 October-25 October 2005

Seismicity at Karymsky was above background levels during 14-21 October. Visual observations on 17 October revealed that the lava dome in the volcano's crater had been partially destroyed. Based on interpretations of seismic data, three ash-and-gas plumes may have risen 2.5-4 km (8,200-13,100 ft) a.s.l. during 14-16 October. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


14 September-20 September 2005

Seismic signals associated with possible small ash-and-gas plumes from Karymsky were recorded during 9-16 September. A thermal anomaly was visible at the volcano on satellite imagery on 15 September. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


7 September-13 September 2005

Seismicity was above background levels at Karymsky during 2-9 September. Based on interpretations of seismic data, small ash-and-gas plumes occurred during the report week. An ash-and-steam plume was faintly visible on satellite imagery extending ESE. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


31 August-6 September 2005

Seismicity was above background levels at Karymsky during 26 August to 2 September. Interpretations of seismic data suggested that ash-and-gas plumes may have risen to 4.5 km (14,800 ft) a.s.l. An ash plume was visible at a height of ~5.8 km (19,000 ft) a.s.l. on 27 August. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


24 August-30 August 2005

Seismicity was above background levels at Karymsky during 19-26 August. Based on interpretations of seismic data, ash-and-gas plumes may have risen to 5.5 km (18,000 ft) a.s.l. On 22 August, three ash plumes reached heights around 3-4 km (9,800-13,100 ft) a.s.l. and extended ~130 km E. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


10 August-16 August 2005

Seismicity remained above background levels at Karymsky during 5-12 August. Based on interpretations of seismic data, possible ash-and-gas plumes rose to ~4 km (~13,100 ft) a.s.l. During 10-11 August, ash plumes rose to ~2 km (~6,600 ft) a.s.l. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


3 August-9 August 2005

Seismic activity at Karymsky was above background levels 3-9 August and indicated possible ash-and-gas plumes up to 3.5 km (~11,500 ft) a.s.l. A thermal anomaly was registered on 2 August. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


27 July-2 August 2005

Seismicity was above background levels at Karymsky during 22-29 July. Based on interpretations of seismic data, ash-and-gas plumes may have reached heights of 2.5-3 km (8,200-9,800 ft) a.s.l. On 22 July, a weak thermal anomaly and a short E-drifting ash-and-gas plume were visible on satellite imagery. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


20 July-26 July 2005

Seismicity was above background levels at Karymsky during 15-22 July, with 350-700 shallow earthquakes occurring daily. Based on interpretations of seismic data, ash-and-gas explosions may have produced plumes to heights of 1-1.5 km above the crater (8,300-10,000 ft a.s.l.). An ash-and-gas plume extended about 11 km SE on 11 July. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


13 July-19 July 2005

Seismicity was above background levels at Karymsky during 8-15 July, with 450-600 shallow earthquakes occurring daily. Based on interpretations of seismic data, ash-and-gas plumes may have risen 1-1.5 km above the crater (8,300-10,000 ft a.s.l.) on 11 and 13 July. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


6 July-12 July 2005

Seismicity was above background levels at Karymsky during 1-8 July. Based on interpretations of seismic data during 4-7 July, ash-and-gas plumes may have risen to ~3 km above the crater (14,900 ft a.s.l.). Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


29 June-5 July 2005

Satellite imagery of Karymsky showed a narrow ash-and-gas plume at a height of ~3.5 km (11,500 ft) a.s.l. on 30 June. Based on interpretations of seismic data, ash-and-gas plumes may have reached heights of 3 km above the volcano's crater (14,900 ft a.s.l.). Karymsky was at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


22 June-28 June 2005

Seismic activity at Karymsky increased starting on 22 June. Ash explosions up to 3,000 m (9,800 ft) a.s.l. traveling SW were observed by pilots. According to seismic data, about 10 ash-and-gas plumes and avalanches occurred at the volcano. On 23 June Karymsky increased to Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


8 June-14 June 2005

Due to a decrease in seismic and volcanic activity during 3-10 June, KVERT decreased the Concern Color Code at Karymsky from Orange to Yellow. During the report week, seismicity decreased to slightly above background levels, and 25-80 shallow earthquakes occurred daily. A weak gas-and-steam plume was observed on 4 June.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


25 May-31 May 2005

Seismic and volcanic activity remained above background levels at Karymsky during 20-27 May. Ash-and-gas explosions rose 1.5-2 km above the crater (10,000-11,600 ft a.s.l.). Karymsky Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


18 May-24 May 2005

During 13-20 May, seismic activity and the height of ash explosions increased at Karymsky in comparison to the previous week. Ash-and-gas plumes rose to ~3.5 km above the crater (16,500 ft a.s.l.) and fresh ash deposits were present on the W and E sectors of the volcano. A thermal anomaly continued to be visible on satellite imagery. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


11 May-17 May 2005

High seismic activity at Karymsky continued during 6-13 May. The number of local shallow events was 150-500 per day during the week. According to seismic data, possible ash-and-gas plumes rose up to the 1,000 m above the crater on 5, 8, and 9 May. According to satellite data, a thermal anomaly was registered on 6 and 8 May. Gas-and-steam plumes containing some ash extended ~40 km E on 6 May and ~30 km S on 9 May. Clouds obscured the volcano at other times. A larger eruption to 3 km altitude (10,000 feet) was reported on 18 May. Karymsky remained at Concern Color Code Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Washington Volcanic Ash Advisory Center (VAAC)


4 May-10 May 2005

High seismicity continued through the week ending on 5 May. Ash-and-gas explosions during 2-3 May rose a short distance above the crater. Ash deposits extending SW were observed on 3 May. A thermal anomaly was also detected by satellite instruments during this period, as seismic data suggested many possible plumes rising as high as 1 km above the crater. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


27 April-3 May 2005

Seismicity at Karymsky was above background levels during 22-29 April, with 300-650 shallow earthquakes occurring daily. Possible ash-and-gas explosions rose to a height of ~1 km above the volcano's crater (~8,300 a.s.l.). The evenings of 26 and 27 April, Strombolian activity was seen in two of the volcano's crater. Volcanic bombs rose to ~300 m above the craters. Ash-and-gas explosions rose to ~1 km above the crater (~8,300 ft a.s.l.). Ash fell to the SE on 22-23 April. Pyroclastic-flow deposits were seen on the NNW flank of the volcano. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


20 April-26 April 2005

Seismic activity at Karymsky was above background levels during 15-22 April, with 250-500 shallow earthquakes occurring daily. During 14-15 April, possible ash-and-gas explosions rose to 1.5 km above the crater (10,000 ft a.s.l.). Strombolian activity was observed on the evening of 20 April. Volcanic bombs rose to 50 m above the crater (5,200 ft a.s.l.). On 21-22 April ash-and-gas bursts rose 300-400 m above the crater (6,000-6,400 ft. a.s.l.). Ash fell to the NE on 21 April. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


13 April-19 April 2005

Seismic activity was above background levels at Karymsky during 8-15 April, with the number of shallow earthquakes increasing from 100 to 1,500 per day during the week. Possible ash-and-gas explosions may have reached 1 km above the crater (8,300 ft a.s.l.) during 12-13 April. Ash-and-gas plumes extended ~30 km on 8 and 9 April. Ash deposits extended ~10 km on the S side of the volcano. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


6 April-12 April 2005

During 1-8 April, seismicity was above background levels at Karymsky, with the number of shallow daily earthquakes decreasing from 500 to 100 during the week. Ash deposits extended ~15 km SW on 2 April. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


30 March-5 April 2005

During 25 March to 1 April, seismicity at Karymsky was above background levels, with 110-500 daily shallow earthquakes. Possible ash-and-gas explosions rose to 1,000-1,500 m above the crater (8,300-10,000 ft a.s.l.) Explosions occurred from two craters at the volcano's summit on 29 March, sending E-drifting ash-and-gas plumes to 1 km above the crater (8,300 ft a.s.l.). Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


16 March-22 March 2005

Seismicity was above background levels at Karymsky during 11-18 March, with up to 350 shallow earthquakes occurring daily. On 12 March scientists noted possible ash plumes extending ~10 km (6.2 mi) E of the volcano, small ash clouds extending ~7 km (4.4 mi) N, and ash deposits on the southern sector of Karymsky. On 14 March possible ash-and-gas explosions reached heights of ~1.5 km above the crater (~10,000 ft a.s.l.). Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


6 January-12 January 2005

Seismicity decreased at Karymsky during 27 May to 3 June, but remained above background levels. No information was available about ash-and-gas explosions. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


29 December-4 January 2005

On 28 December, an observed eruption at Karymsky produced a plume composed primarily of gas and steam, but with some ash, that rose to ~1 km above the crater. Thermal anomalies were also visible on satellite imagery on 27 and 28 December. On 30 December the Tokyo VAAC reported that a plume was present up to ~8 km a.s.l. and extending SW. Karymsky remained at Concern Color Code Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


1 December-7 December 2004

Seismic activity began to increase at Karymsky on 5 December, with ~200 shallow events. A larger number of earthquakes occurred on 6 December. During 5-6 December, possible ash plumes rose to 2.5 km a.s.l. and rock avalanches occurred. KVERT raised the Concern Color Code from Yellow to Orange on 7 December.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


13 October-19 October 2004

Seismic activity was above background levels at Karymsky during 8-15 October, with 310-540 shallow events occurring daily. Interpretations of seismic data suggested that weak ash-and-gas explosions occurred during the week. Ash-and-gas plumes may have reached heights of 2.5-3 km a.s.l. on 9, 12, and 13 October. Ash plumes were visible on satellite imagery on 11 and 12 October, extending E then ESE 80 and 50 km, respectively. Karymsky remained at Concern Color Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


15 September-21 September 2004

Seismic activity was above background levels during 11-17 September. The number of local shallow events was 140-220 events per day. According to seismic data, several possible ash-and-gas explosions up to 2 km a.s.l. occurred on 10-11 September, and up to 2.5-6 km on 12-14 September. Karymsky remained at Concern Color Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


8 September-14 September 2004

During 3-10 September, seismicity was above background levels at Karymsky. The number of shallow events increased from 55 to 250 during 3-6 September. Based on interpretations of seismic data, several plumes from ash-and-gas explosions may have risen 4.5-5.5 km a.s.l. A pilot observed an ash plume at a height of ~ 4 km a.s.l. on 5 September. Karymsky remained at Concern Color Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


1 September-7 September 2004

Seismicity was slightly to moderately above background levels at Karymsky during 27 August to 3 September. During 26-29 August, there were 140-180 shallow earthquakes recorded daily. Based on interpretations of seismic data, several ash-and-gas plumes may have risen to ~5.5 km a.s.l. on 31 August and 1 September. Karymsky remained at Concern Color Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Itar-Tass News


25 August-31 August 2004

An increase in volcanic activity led KVERT to raise the Concern Color Code at Karymsky from Yellow to Orange on 1 September. The level of seismicity was above background levels during 31 August to 1 September, with 130 shallow earthquakes occurring. Based on interpretations of seismic data, possible ash plumes rose to 5.5 km a.s.l. on 31 August and 1 September.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


4 August-10 August 2004

During 30 July to 6 August seismicity at Karymsky was slightly above background levels, with 110-180 shallow earthquakes recorded during the week. KVERT reduced the Concern Color Code to Yellow from Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


14 July-20 July 2004

During 9-16 July seismicity at Karymsky was above background levels, with 260-470 shallow earthquakes recorded during the week. On 14 July an explosion produced an ash-and-gas plume to a height of ~7.5 km a.s.l. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


7 July-13 July 2004

During 3-9 July, seismicity at Karymsky was above background, with 400-800 shallow earthquakes occurring. Based on interpretations of seismic data, daily ash-and-gas explosions may have risen 2-4.5 km a.s.l. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


30 June-6 July 2004

Seismicity at Karymsky was above background levels during 24-28 June, with 300-400 shallow earthquakes occurring. During 29-30 June, the number of earthquakes increased to 600-950. Based on interpretations of seismic data, daily ash-and-gas explosions may have risen to 2.5-4.5 a.s.l. On 28 June ash-and-gas plumes rose to 2.5-3 km every 7-10 minutes. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


23 June-29 June 2004

Seismicity remained above background levels at Karymsky during 18-25 June, with 300-350 shallow earthquakes occurring per day. Based on interpretations of seismic data, possible ash-and-gas explosions rose daily to 2.5-4.5 km a.s.l. Pilots saw an ash plume on 17 June rise to ~2.5 km a.s.l. On 18 June, an ash plume extended ~40 km E. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


9 June-15 June 2004

Seismic activity was above background levels at Karymsky during 4-11 June, with 300-480 shallow earthquakes occurring daily. Based on interpretations of seismic data, daily ash-and-gas explosions produced plumes that rose 3-6.5 km a.s.l. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


2 June-8 June 2004

Between 28 May and 4 June, seismic activity was above background levels at Karymsky with up to 520 shallow earthquakes recorded and possible gas-and-ash plumes up to 4.5 km a.s.l. each day. A possible small eruption was observed on 28 May and an eruption was also observed on 2 June. An eruption on 6 June produced a plume that rose to ~3 km a.s.l. and extended to the SE. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


12 May-18 May 2004

During 7-14 May, seismicity was above background levels at Karymsky, with 330-450 shallow earthquakes occurring daily. Based on interpretations of seismic data, possible ash-and-gas explosions rose to 2.5-3 km a.s.l. daily. On 8 May an ash plume was visible extending more than 16 km NE of the volcano. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


5 May-11 May 2004

Seismic activity at Karymsky was above background levels during 30 April to 7 May, with 180-580 earthquakes occurring per day. Based on interpretations of seismic data, possible ash-and-gas explosions rose to 2.5-3 km a.s.l. daily. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


21 April-27 April 2004

Seismicity was above background levels at Karymsky during 16-23 April, with 240-450 shallow earthquakes occurring per day. Based on interpretations of seismic data, ash-and-gas explosions may have produced plumes to 2.5-3.5 km a.s.l. daily. On 17 and 20 April, ash deposits were seen NW, SW, and E of the volcano. On 19 April, an ash plume was seen on satellite imagery extending 47 km S. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


14 April-20 April 2004

During 9-16 April, seismicity at Karymsky remained above background with 300-470 earthquakes per day and daily eruptions produced plumes to ~3.5 km a.s.l. During 12-19 April up to 400 small explosions per day produced plumes that rose ~0.5-1.5 km above the vent. According to the Tokyo VAAC, an eruption on 18 April produced a gas-and-ash plume that rose to ~4.6 km a.s.l. and extended SE. Karymsky remains at Concern Color Code Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC), RIA Novosti


7 April-13 April 2004

During 2-9 April seismicity was above background levels at Karymsky, with 270-400 shallow earthquakes occurring daily. Based on interpretations of seismic data, daily ash-and-gas explosions may have produced plumes to heights of 2.5-3 km a.s.l. During 6-7 April, ash plumes extended 15-40 km to the NE and N. On 7 April, ash deposits were noted on the volcano to the NNE, SSW, E, and W. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


31 March-6 April 2004

Seismicity remained above background levels at Karymsky during 26 March to 2 April, with 240-380 shallow earthquakes occurring per day. Based on interpretations of seismic data, plumes from ash-and-gas explosions may have reached 3.5 km a.s.l. every day. On 30 March ash deposits were seen extending SE and SW from the volcano. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


24 March-30 March 2004

During 19-26 March seismicity was above background levels at Karymsky with 250-300 shallow earthquakes per day. Based on interpretations of seismic data, daily explosions may have produced ash-and-gas plumes to a height of ~3.5 km a.s.l. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


17 March-23 March 2004

Seismicity was above background levels at Karymsky during 12-19 March, with 250-350 shallow earthquakes occurring per day. Based on interpretations of seismic data, daily ash-and-gas explosions may have produced plumes to a height of ~3 km a.s.l. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


10 March-16 March 2004

Seismicity was above background levels at Karymsky during 5-12 March, with 200-370 shallow earthquakes occurring. Based on interpretations of seismic data, daily ash-and-gas explosions may have reached 3 km a.s.l. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


3 March-9 March 2004

Seismicity at Karymsky was at background levels during 26-28 February, and above background levels during 28 February to 5 March. During the week, there were 30-400 shallow earthquakes recorded. Based on interpretations of seismic data, ash-and-gas explosions produced plumes to 3-3.5 km a.s.l. on 29 February and during 1-3 March. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


25 February-2 March 2004

Seismicity remained above background levels at Karymsky during 20-27 February, with 30-100 shallow earthquakes during the week. Based on interpretations of seismic data, several ash explosions during 19-25 may have produced ash plumes to a maximum height of 6.5 km a.s.l. On 20 February an ash plume was seen rising to ~3.5 km a.s.l. Satellite imagery on 20 February showed ash deposits as far away as 35 km S of the volcano. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


18 February-24 February 2004

During 12-16 February, seismicity was above background levels at Karymsky. No seismic data were recorded during 17-18 February. Based on interpretations of seismic data, during 12-14 February five ash-and-gas explosions produced plumes that rose 4-4.5 km a.s.l., and on 15 February explosions produced two plumes to ~3 km a.s.l. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


11 February-17 February 2004

Seismicity was above background levels at Karymsky during 6-13 February, with 30-190 shallow earthquakes occurring per day. Based on interpretations of seismic data, four possible ash-and-gas explosions produced plumes to ~6.5 km a.s.l. on 10 February. According to data from the Airport Meteorological Center in Yelizovo, on 9 and 12 February pilots saw ash plumes that rose to ~5.5 km a.s.l. Karymsky remained at Concern Color Code Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), United Press International, IRIB News


4 February-10 February 2004

Seismicity was above background levels at Karymsky during 30 January to 6 February, with 160-220 shallow earthquakes occurring per day. Based on interpretations of seismic data, during 30-31 January possible ash-and-gas explosions produced plumes that rose 2.5-3 km a.s.l. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


28 January-3 February 2004

During 23-30 January, seismicity was above background levels at Karymsky, with 50-150 shallow earthquakes occurring daily. Gas-and-steam explosions produced plumes that rose to ~1 km above the volcano. Karymsky remained at Concern Color Code Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Pravda News


21 January-27 January 2004

During 16-23 January, seismicity was above background levels at Karymsky, with 200-300 shallow earthquakes occurring per day. Possible ash-and-gas explosions produced plumes that rose to 3 km above the volcano. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


14 January-20 January 2004

Seismicity was above background levels at Karymsky during 9-16 January, with 150-300 earthquakes recorded. Ash-and-gas plumes may have risen 1.5-3 km above the volcano. According to the Airport Meteorological Center (AMC) in Yelizovo, during the report period a pilot saw an ash plume rise ~5.5 km above the volcano and extend SSW. On 12 January staff of the Kamchatkan Experimental & Methodical Seismological Department (KEMSD) saw an ash plume rise ~2 km above the volcano and explosions that occured every 5-7 minutes. On 10 January ash deposits were seen on the volcano's snow-covered flanks extending SE. Karymsky remained at Concern Color Code Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


7 January-13 January 2004

Seismicity was above background levels at Karymsky during 1-5 January, with 40-150 shallow earthquakes occurring per day. The seismic station was not working during 5-9 January. During 2-4 January, ash deposits were visible on the volcano's snow-covered flanks extending ESE, NNW, and NNE. The Tokyo VAAC reported that ash was visible on satellite imagery on 8 January at a height of ~7 km a.s.l. drifting SSW. Karymsky remained at Concern Color Code Orange.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


31 December-6 January 2004

Seismicity was above background levels at Karymsky during 26 December to 2 January, with 200-270 shallow earthquakes recorded per day. Possible ash-and-gas plumes rose 2-3.5 km above the volcano. On 25, 29, and 31 December explosions with accompanying pyroclastic flows may have been recorded. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


24 December-30 December 2003

On 23 December at 0359 and on 24 December at 1605 KVERT recorded possible explosions at Karymsky that were accompanied by pyroclastic flows. During 19-26 December, seismicity at Karymsky was above background levels, with 40-200 earthquakes occurring per day. In addition, possible gas-and-ash explosions rose 1-2 km above the volcano. The number of earthquakes decreased during 18-20 December, then increased during 21-24 December. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


17 December-23 December 2003

Seismicity was above background levels at Karymsky during 12-19 December, with 160-240 local shallow earthquakes occurring per day. Explosions, possibly bearing ash, rose to 1-3 km above the volcano. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


3 December-9 December 2003

During 28 November to 5 December, intermittent explosive eruptions emitted ash up to 5 km a.s.l. at Karymsky. On 5 December at 0745 a gas-and-ash plume reached 6 km a.s.l. and drifted E. Seismicity was above background levels with 200-240 shallow earthquakes detected per day. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


26 November-2 December 2003

During 21-28 November, possible ash-and-gas plumes rose to 1-1.5 km above Karymsky. In addition, seismicity was above background levels during the report period, with 160-210 shallow earthquakes occurring. Karymsky remained at Concern Color Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


19 November-25 November 2003

During 15-21 November, intermittent explosive eruptions at Karymsky produced gas-and-ash plumes that rose to 1.5-2 km above the crater. Karymsky remained at Concern Color Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


12 November-18 November 2003

During 7-14 November, seismicity was above background levels at Karymsky. The number of shallow earthquakes increased from 150 to 220 per day. Possible ash-and-gas explosions rose to 1-1.5 km above the volcano. Karymsky remained at Concern Color Code Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


29 October-4 November 2003

Seismicity was above background levels at Karymsky during 24-31 October, although the number of shallow earthquakes decreased from 250 to 70 per day. Seismic data indicated that possible ash-and-gas explosions rose 1-2.5 km above the crater. Satellite imagery showed a possible plume extending ~65 km NNE. The Concern Color Code was raised from Yellow to Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


8 October-14 October 2003

During 3-10 October, seismicity at Karymsky was above background levels. Seismic data indicated that on 4 October at 1848 an ash explosion produced a cloud to a height of 4.5 km above the crater. The number of shallow earthquakes increased from ~150 on 4 October to ~350 per day during 5-8 October. Ash plumes extending 60 km SE and 30 km NE were observed on 4 and 7 October, respectively. The Concern Color Code at Karymsky was reduced from Orange to Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


1 October-7 October 2003

During 26 September to 3 October, seismicity was above background levels at Karymsky and the Concern Color Code was raised from Yellow to Orange. During 25-29 September, 200-270 shallow earthquakes occurred that indicated possible ash-and-gas explosions to heights of 1-1.5 km above the volcano. Interpretations of seismic data suggested that on 2 October at 0633 an ash explosion began that produced a plume to 3.5 km above the volcano. A seismic pause was recorded on 2 October.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


17 September-23 September 2003

Seismicity was above background levels at Karymsky during 12-19 September, with 210-300 shallow earthquakes occurring per day. These data indicated that possible ash-and-gas explosions occurred and rose 1-1.5 km above the crater. On 14 September an ash-and-gas plume rose 0.5 km above the crater. On 23 September, after 2 days of low seismicity, an explosion occurred at 1808 that produced an ash plume to 5 km a.s.l. Karymsky remained at Concern Color Code Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


3 September-9 September 2003

Seismic activity at Karymsky was above background levels during 29 August to 5 September. On 28 and 29 August ~120 shallow earthquakes occurred per day, and ash explosions rose to ~4.7 km a.s.l. The number of shallow earthquakes increased to 180 on 1 September, and then to 230 on 2-3 September. Seismic data indicated that ash-and-gas explosions reached 4.5 km a.s.l. On 30 August spasmodic tremor and a thermal anomaly visible on satellite imagery indicated the formation of a pyroclastic flow. The Concern Color Code at Karymsky was reduced from Orange to Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


27 August-2 September 2003

Due to increased volcanic activity at Karymsky, KVERT raised the Concern Color Code to Orange from Yellow on 29 August. On 29 August at 1240 and 1612 explosions occurred that produced ash plumes to heights of 4-4.7 km a.s.l. The plumes drifted E. During 22-29 August, seismicity was above background levels, with about 180 shallow earthquakes per day. These earthquakes indicated possible ash-and-gas explosions to heights of 1-1.5 km above the volcano.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


21 May-27 May 2003

Intermittent explosions occurred at Karymsky during 16-23 May. Seismicity was above background levels, with 150 to 320 shallow events occurring per day during 18-21 May. Seismic data indicated that ash-and-gas explosions reached heights up to 1 km above the crater, and gas blowouts and hot avalanches possibly occurred. On 18 May ash deposits were seen on snow on the volcano's S and SE flanks. Karymsky remained at Concern Color Code Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


14 May-20 May 2003

Intermittent explosive activity continued at Karymsky during 9-16 May. Seismicity was above background levels on 10-16 May. Seismic data indicated that a total of 10 ash-and-gas explosions reached heights up to 1 km above the crater, and hot avalanches possibly occurred. Satellite data revealed a thermal anomaly and strips of ash deposits on the volcano's flanks. Karymsky remained at Concern Color Code Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


7 May-13 May 2003

During 2-9 May, intermittent explosive eruptive activity continued at Karymsky and seismicity was at background levels. Karymsky remained at Concern Color Code Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


23 April-29 April 2003

KVERT reported that Karymsky's seismicity was above background during the week ending 25 April, an interval when instruments registered ~40-100 volcanic earthquakes per day. The character of the seismicity suggested ash-and-gas explosions up to 1,000 m above the volcano's crater. According to Russian satellite data, ash deposits were detected ~35 km away in various directions from the volcano; these were noted the previous week, on 19-22 April, but not previously reported here. According to other observers on 21 April, an ash-and-gas plume rose 1,500 m above the volcano's crater. The level of concern color code stood at Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


16 April-22 April 2003

Karymsky's eruptive vigor increased. Although seismicity stood at background levels during the past week and slightly above background levels on 14 April, ten=s of volcanic earthquakes per day began to be registered. Observations made on 16 April suggested the presence of fresh ash deposits extending to the ESE for a distance of over 10 km from the summit. Some data suggested that on 17 April an ash-and-gas plume rose 1,000 m above the crater (to ~2,500 m a.s.l.). These events caused authorities to raise the hazard status from Green to Yellow. A 23 April aviation notice described an apparent ash plume at ~3 km a.s.l. directed S.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), US Air Force Weather Agency


2 April-8 April 2003

Seismicity was at background levels at Karymsky during 28 March to 4 April, so KVERT decreased the Concern Color Code from Yellow to Green. Fresh ash deposits were visible on satellite data during 17-18 March and a gas-and-steam plume was visible on 28 March.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


19 March-25 March 2003

An increase in seismicity and volcanism at Karymsky during 14-21 March led KVERT to raise the Concern Color Code from Green to Yellow. Seismicity was slightly above background levels on 19 March, with weak volcanic earthquakes occurring and other seismic data that day suggesting the presence of hot avalanches. During 17-20 March, ash deposits were visible on satellite images extending more than 30 km SW of the volcano.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


26 February-4 March 2003

Seismicity at Karymsky was at background levels during 20-23 February, so KVERT reduced the Concern Color Code on 28 February from Yellow to Green. Only an occasional very weak thermal anomaly was recorded on satellite imagery from late January to February. According to KVERT, the 7-year-period of eruptive activity at Karymsky may have come to an end.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


18 December-24 December 2002

Seismicity remained above background levels at Karymsky during 13-20 December, with about 190-210 shallow events recorded per day. The character of seismicity indicated that ash-and-gas explosions reached heights of ~1 km above the volcano, and vigorous, 5- to 10-minute-long gas emissions possibly occurred. Karymsky remained at Concern Color Code Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


11 December-17 December 2002

Seismicity remained above background levels at Karymsky during 6-13 December, with about 210-230 shallow events recorded per day. The character of seismicity indicated that ash-and-gas explosions reached heights of ~1 km above the volcano, and vigorous, 5- to 10-minute-long gas emissions possibly occurred. Karymsky remained at Concern Color Code Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


4 December-10 December 2002

Seismicity remained above background levels at Karymsky during 29 November to 6 December, with 200-300 shallow events recorded per day. The character of seismicity indicated that ash-and-gas explosions reached heights of ~1 km above the volcano, and 5- to 10-minute-long vigorous gas emissions possibly occurred. On 1 December an ash plume was seen rising ~500 m above the volcano, and the top of the volcano and its SE flank was covered with recent ashfall and debris from continuing Vulcanian/Strombolian eruptions. Karymsky remained at Concern Color Code Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


20 November-26 November 2002

Seismicity remained above background levels at Karymsky during 15-22 November, with 200-220 local shallow events recorded per day. The character of the seismicity indicated that ash-and-gas explosions rose to 1-2 km above the volcano and vigorous gas emissions lasting 5-10 minutes possibly occurred. On 20 November at 1157 a 20-minute-long seismic event was taken to indicate the possible occurrence of ash explosions up to 1 km above the crater and hot avalanches. Thermal anomalies (1-3 pixels) were visible on satellite imagery on several days. Karymsky remained at Concern Color Code Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


13 November-19 November 2002

Seismicity remained above background levels at Karymsky during 8-15 November, with approximately 250 local shallow events recorded per day. The character of the seismicity indicated that ash-and-gas explosions rose to 1-2 km above the volcano and vigorous gas emissions lasting 5-10 minutes possibly occurred. Thermal anomalies (1-2 pixels) were visible on satellite imagery several days. Karymsky remained at Concern Color Code Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


30 October-5 November 2002

Seismicity remained above background levels at Karymsky during 25 October to 1 November, with ~250 shallow earthquakes occurring per day. The character of the seismicity indicated that ash-and-gas explosions reached heights of 1 km above the volcano and vigorous 5- to 10-minute-long gas emissions possibly occurred. Thermal anomalies were visible on satellite imagery during 26-28 and 30 October. On the 31st at 1350 a pilot reported seeing an ash plume at a height of ~4 km a.s.l. extending SE. Seismic data from the Kamchatkan Experimental and Methodical Seismological Department revealed that the character of seismicity changed after 1400 that day. The data indicated that a lava flow probably traveled down the volcano's slope. A bright, large thermal anomaly was visible at the volcano on satellite imagery at 1314, as well as a ~60-km-long plume extending to the WSW. Pilots saw plumes on 1 November at 1100 rising to 4 km a.s.l. and drifting to the SE, and on 2 November at 0920 rising to 5.2 km a.s.l. Karymsky remained at Concern Color Code Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


23 October-29 October 2002

Seismicity remained above background levels at Karymsky during 18-25 October, with ~250 shallow earthquakes occurring per day. The character of the seismicity indicated that ash-and-gas explosions reached heights of 1 km above the volcano and vigorous 5- to 10-minute-long gas emissions possibly occurred. KVERT reported that a lava flow was probably traveling down the volcano's slopes. Thermal anomalies were visible on satellite imagery on several days, but ash was not. Karymsky remained at Concern Color Code Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


18 September-24 September 2002

During 13-20 September, seismicity at Karymsky remained above background levels, with 200-300 local shallow events occurring per day. The character of the seismicity indicated that ash-and-gas explosions rose to ~1 km above the volcano and gas blow-outs possibly occurred. On 16 September at 1217 a short-lived explosion sent an ash-and-gas plume to a height of ~3 km a.s.l. A thermal anomaly was visible on satellite imagery, but ash was not. Karymsky remained at Concern Color Code Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


11 September-17 September 2002

During 6-13 September, seismicity at Karymsky remained above background levels, with 200-250 local shallow events occurring per day. The character of the seismicity indicated that ash-and-gas explosions rose to ~1 km above the volcano and gas blow-outs possibly occurred. Observations of Karymsky on 8 September revealed three new small lava flows on the volcano's S and SE slopes. A thermal anomaly was visible on satellite imagery, but ash was not. Karymsky remained at Concern Color Code Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


4 September-10 September 2002

During 30 August to 6 September, activity at Karymsky was similar to activity throughout August. Seismicity remained above background, with 200-300 local shallow earthquakes occurring per day (150-250 occurred per day in August). The character of the seismicity indicated that ash-and-gas explosions rose to ~1 km above Karymsky and gas blow-outs possibly occurred. Thermal anomalies were visible on satellite imagery, but ash was not. Karymsky remained at Concern Color Code Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


31 July-6 August 2002

During 27 July-2 August, seismicity remained above background levels at Karymsky. Local, shallow seismic events decreased from 250 to 150 events per day. The character of the seismicity indicated that weak ash-and-gas explosions and gas blow-outs possibly occurred. The duration and intensity of blow-outs increased. A 2-pixel-large thermal anomaly was visible on satellite imagery on 26 July. Karymsky remained at Concern Color Code Yellow ("volcano is restless").

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


24 July-30 July 2002

During 20-26 July, seismicity was above background levels at Karymsky. Local, shallow seismic events occurred at a rate of ~10 events per hour. The character of the seismicity indicated that weak ash-and-gas explosions and gas blow-outs possibly occurred. Satellite imagery on 25 July indicated a possible small ash plume moving to the SW. Karymsky remained at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


17 July-23 July 2002

During 12-19 July, seismicity was above background levels at Karymsky. During most of the report week ~10 local shallow seismic events occurred per hour, but by the end of the week the rate had slightly decreased. The character of seismicity suggested that weak ash-and-gas explosions and gas blow-outs had probably occurred. Karymsky remained at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


10 July-16 July 2002

Activity at Karymsky during 5-12 July was similar to activity during the past several months. Seismicity was above background levels at Karymsky, with ~10 earthquakes per hour. The character of seismicity suggested that weak ash-and-gas explosions and gas blow-outs had probably occurred. On the 9th a flight crew observed a volcanic plume that rose to a height of ~3 km a.s.l. Thermal anomalies were visible on satellite imagery, but ash was not. Karymsky remained at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


3 July-9 July 2002

During 28 June to 5 July, seismicity was above background levels at Karymsky, with ~10 earthquakes per hour. The character of seismicity suggested that weak ash-and-gas explosions and gas blow-outs had probably occurred. On 29 June at 1631 interpretations of seismic data indicated a possible ash-and-gas explosion that rose to a height of ~4 km a.s.l. Thermal anomalies were visible on satellite imagery, but ash was not. Karymsky remained at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


26 June-2 July 2002

During 21-28 June, seismicity was above background levels at Karymsky, with ~10 earthquakes occurring per hour. The character of seismicity suggested that weak ash-and-gas explosions and gas blow-outs had probably occurred. A steam-and-gas plume was visible on AVHRR satellite imagery on 25 June. Thermal anomalies were visible on satellite imagery, but ash was not. Karymsky remained at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


19 June-25 June 2002

During 14-21 June, seismicity was above background levels at Karymsky, with ~10 earthquakes occurring per hour. The character of seismicity suggested that weak ash-and-gas explosions and gas blow-outs had probably occurred. Thermal anomalies were visible on satellite imagery, but ash was not. Karymsky remained at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


12 June-18 June 2002

During 7-14 June, seismicity was above background levels at Karymsky, with ~10 earthquakes occurring per hour. The character of seismicity suggested that weak ash-and-gas explosions and gas blow-outs had probably occurred. Thermal anomalies were visible on satellite imagery, but ash was not. Karymsky remained at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


5 June-11 June 2002

During 31 May-7 June, seismicity was above background levels at Karymsky, with ~10 earthquakes occurring per hour. The character of seismicity suggested that weak ash-and-gas explosions and gas blow-outs had probably occurred. Thermal anomalies were visible on satellite imagery, but ash was not. Karymsky remained at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


29 May-4 June 2002

During 24-31 May, seismicity was above background levels at Karymsky, with ~10 earthquakes occurring per hour. The character of seismicity suggested that weak ash-and-gas explosions and gas blow-outs had probably occurred. Thermal anomalies were visible on satellite imagery, but ash was not. Karymsky remained at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


22 May-28 May 2002

During 17-24 May, seismicity was above background levels at Karymsky, with ~10 earthquakes occurring per hour. The character of seismicity suggested that weak ash-and-gas explosions, gas blow-outs, and debris avalanches occurred. Thermal anomalies were visible on satellite imagery, but ash was not. Karymsky remained at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


15 May-21 May 2002

During 10-17 May seismicity was above background levels at Karymsky and the rate of earthquakes slightly increased in the middle of the report week. The character of seismicity suggested that weak ash-and-gas explosions, gas blow-outs, and debris avalanches occurred. Observations from a helicopter on 10 May revealed that a new ~100-m-high cone had grown inside the crater and a lava flow was seen on the volcano's SSE slope. Thermal anomalies and an ash-and-steam plume were visible on satellite imagery. Karymsky remained at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


8 May-14 May 2002

During 3-10 May, Karymsky's seismicity remained above background levels and its character suggested that weak ash-and-gas explosions, gas blow-outs, and debris avalanches occurred. By the end of the week seismicity had slightly decreased. Thermal anomalies were visible on satellite imagery. On 9 May a faint ash-and-gas plume was also visible on satellite imagery extending 20 km to the SE. Karymsky remained at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


1 May-7 May 2002

During 27 April-3 May, Karymsky's seismicity remained above background levels and its character suggested that weak ash-and-gas explosions, gas blow-outs, and debris avalanches occurred. On 28 April at about 1630 an ash explosion produced a cloud to 500 m a.s.l. and deposited ash predominately to the W and to a lesser extent to the E. A new cone was visible inside the crater. Thermal anomalies were visible on AVHRR satellite imagery, but ash was not. The volcano remained at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


24 April-30 April 2002

During 19-26 April, Karymsky's seismicity was above background levels and its character suggested that weak ash-and-gas explosions, gas blow-outs, and debris avalanches occurred. Thermal anomalies were visible on AVHRR satellite imagery. Traces of ashfall were visible on MODIS imagery on 17 April. The volcano remained at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


17 April-23 April 2002

A pilot reported observing an ash cloud from an explosion at Karymsky on 15 April at 1115 that rose 3 km above the volcano. During 12-19 April, seismicity was above background levels and its character indicated that weak ash-and-gas explosions, gas blow-outs, and debris avalanches possibly occurred. Thermal anomalies were visible on AVHRR satellite imagery. The volcano remained at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


10 April-16 April 2002

After about 6 days of instrument downtime, the seismic station near Karymsky began to operate again. As was the case before the seismic station malfunction, seismicity was above background levels at 10 earthquakes per hour. The character of the seismicity indicated that weak ash-and-gas explosions and avalanches possibly occurred. A four-pixel-large thermal anomaly was observed on AVHRR satellite imagery on 9 April , but no ash was detected. The volcano was at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


3 April-9 April 2002

During 29 March-2 April, seismicity was above background levels at Karymsky. No seismic data have been available since 3 April due to seismic station malfunction. Faint thermal anomalies were visible on AVHRR satellite imagery on 30 and 31 March. No ash was visible on any satellite imagery. The last assigned Concern Color Code (until 2 April) was Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


27 March-2 April 2002

During 23-29 March, seismicity remained above background levels at Karymsky, with about 10 earthquakes occurring per hour. The character of the seismicity indicated that weak ash-and-gas explosions and avalanches probably occurred. Thermal anomalies that were 1-3 pixels large were visible on AVHRR satellite imagery, but ash was not. The volcano remained at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


20 March-26 March 2002

After about one week of instrument downtime, the seismic station near Karymsky began to operate again. As was the case before the seismic station malfunction, seismicity was above background levels (10 earthquakes per hour). The character of the seismicity indicated that weak ash-and-gas explosions and avalanches possibly occurred. Weak thermal anomalies were observed on AVHRR satellite imagery and no ash was detected. The volcano was at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


13 March-19 March 2002

Monitoring data showed no signs of volcanism at Karymsky during 8-15 March. No seismic data were available due to seismic station malfunction. No thermal anomalies or volcanic plumes were observed on satellite images. The last assigned Concern Color Code (until 8 March) was Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


6 March-12 March 2002

On 5 March, after 11 days of instrument down time, the seismic station near Karymsky began to operate again. The amount and intensity of seismicity was similar to that recorded in February; about 10 earthquakes occurred per hour. Weak thermal anomalies were observed on AVHRR satellite imagery and no ash was detected. The volcano was at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


27 February-5 March 2002

Prior to the failure of the seismic station at Karymsky on 23 February, seismicity was above background levels and similar in comparison to the previous week. During 22 February-1 March, thermal anomalies were visible on satellite imagery. No ash was detected in any images; only steam and possible airborne volcanic aerosols were visible.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


20 February-26 February 2002

The level of seismicity at Karymsky during 15-22 February was similar to the previous week, with about 10 events occurring per hour. Thermal anomalies and small gas-and-steam plumes were visible on satellite imagery. The volcano remained at Color Concern Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


13 February-19 February 2002

On 13 February a pilot reported seeing a W-drifting ash cloud rise to 5 km a.s.l. The cloud was not visible on satellite imagery; it may have been a single burst that dissipated rapidly. On 14 February, after 19 days with no seismic data, the seismic station at Karymsky began to work. Local shallow earthquakes occurred at the previously recorded rate of about 10 events per hour. During 8-15 February thermal anomalies were visible on satellite imagery. The volcano was at Color Concern Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


6 February-12 February 2002

During 3-8 February thermal anomalies at Karymsky continued to be observed on AVHRR satellite imagery. No seismic data were available due to seismic station malfunction, and no ash was detected in satellite imagery.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


30 January-5 February 2002

Seismicity was above background levels on 25 January, but the next day there were no seismic data available due to a station malfunction. On the 27th a thermal anomaly was visible on satellite imagery. The Tokyo VAAC reported that an eruption on 1 February at 1810 produced an E-drifting ash cloud to ~9 km a.s.l. The cloud was not visible on satellite imagery.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)


23 January-29 January 2002

On 19 January a thermal anomaly at Karymsky was observed on satellite imagery for the first time. On 24 January the seismic station, which had been inoperable for the previous 9 days, recorded about 10 local shallow earthquakes per hour. The rate of earthquakes beginning on the 24th was similar to that seen before the station broke, but they became a little stronger over time. No ash was visible on satellite imagery. The Concern Color Code on 25 January was Yellow ("volcano is restless"), which was the same as prior to the seismic station breaking.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


16 January-22 January 2002

During 11-14 January seismic activity at Karymsky was above background levels, with ~200 weak, shallow, local earthquakes occurring per day. Several of the shallow earthquakes indicated possible gas-and-ash explosions. Due to problems with the seismic station, beginning on 15 January, no Concern Color Code was assigned to the volcano. The last assigned Color Concern Code (on 14 January) was Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


9 January-15 January 2002

During 4-11 January, volcanic activity at Karymsky was similar to that of the previous week. Seismicity was above background levels, with 40-80 weak, local earthquakes per day. Several shallow seismic events indicated possible gas-and-ash explosions. Beginning on 10 January at 1200, local earthquakes noticeably increased. The Color Concern Code remained at Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


2 January-8 January 2002

During 28 December-4 January seismicity was mostly above background levels at Karymsky, with 40-80 weak, local earthquakes per day. Several shallow seismic events indicated possible gas-and-ash explosions. The Color Concern Code remained at Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


26 December-1 January 2002

During 21-28 December seismicity remained above background levels at Karymsky, with 60-80 weak, local earthquakes per day. Several shallow seismic events indicated possible gas-and-ash explosions. The Color Concern Code remained at Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


19 December-25 December 2001

During 14-21 December, 50-90 weak local earthquakes occurred per day at Karymsky and several shallow seismic events indicated possible gas-and-ash explosions. Observations from a helicopter on 14 December revealed that the upper part of the volcano's edifice remained snow free and fresh ash covered the volcano's NNW flank and spread ~3 km to Dvor stratovolcano, part of the Karymsky complex.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


12 December-18 December 2001

During 7-14 December, 26-70 weak earthquakes occurred per day at Karymsky, weak spasmodic tremor was registered, and 13 shallow seismic events indicated possible gas-and-ash explosions. Seismicity increased by the end of the week. A pilot reported that on 10 December the upper part of the volcano's edifice was snow free and a gas-and-steam plume was observed. The volcano remained at Concern Color Code Yellow ("volcano is restless").

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


5 December-11 December 2001

Since 27 November weak, continuous spasmodic tremor was recorded at Karymsky. From 40 to 60 weak local seismic earthquakes occurred per day. Several shallow seismic events per day indicated possible gas-and-ash explosions. No thermal anomaly was observed.The volcano remained at Color Concern Code Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


28 November-4 December 2001

Since 27 November weak, continuous spasmodic tremor was recorded at Karymsky. The volcano remained at Concern Color Code Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


21 November-27 November 2001

A noticeable decrease in seismicity at Karymsky during the end of the week of 16-23 November led KVERT to reduce the Concern Color Code from Orange to Yellow. Seismicity remained slightly above background levels after the decrease in earthquakes and signals of possible ash-and-gas explosions. On 19 November an airline pilot reported that the volcano's edifice looked black. On 22 November KVERT observed that the upper part of the edifice was without snow and had steam emanating from it.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


14 November-20 November 2001

Increased seismicity at Karymsky during 11-16 November led KVERT to raise the Color Concern Code from Yellow to Orange. Beginning on 11 November seismicity was above background levels and many earthquakes and episodes of high-frequency spasmodic volcanic tremor were registered beneath the volcano. On 15 November at 0830 seismicity increased and earthquakes and signals of possible weak ash-and-gas explosions were registered. On 16 November at 0943 a 20-minute-long seismic signal was interpreted to indicate a gas-and-ash cloud may have risen to 8 km a.s.l.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


27 December-2 January 2001

Because seismic activity was at background levels throughout the week KVERT reduced the Concern Color Code from Yellow to Green.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


20 December-26 December 2000

KVERT reported that seismic activity was at background levels at Karymsky until 0905 to 0915 on 20 December when shallow earthquakes registered under the volcano were accompanied by short-lived explosions. At 2150 the same day, a pilot confirmed the presence of ash at the summit of the volcano and mud traces from melting snow on the edifice slopes. On 21 and 22 December (the end of KVERT's report period) seismicity was above background levels. The Concern Color Code was raised from Green to Yellow.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


Summary of eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
2001 Nov 15 2014 Feb 27 (continuing) Confirmed 3 Historical Observations Summit and upper south flank
1996 Jan 2 2000 Dec 20 (?) Confirmed 3 Historical Observations New summit crater SW of 1970-82 crater
[ 1985 May 3 (?) ] [ Unknown ] Discredited    
1970 May 11 1982 Oct 11 Confirmed 3 Historical Observations
1967 Nov 1967 Nov Confirmed 1 Historical Observations
1965 May 15 ± 5 days 1967 Feb Confirmed 3 Historical Observations
1960 Apr 1964 Dec Confirmed 3 Historical Observations
1956 Mar 1957 Feb Confirmed 1 Historical Observations
1955 Unknown Confirmed 2 Historical Observations
1953 Unknown Confirmed 2 Historical Observations
1952 Nov Unknown Confirmed 2 Historical Observations
1947 Apr Unknown Confirmed 2 Historical Observations
1946 Sep 1946 Oct Confirmed 2 Historical Observations
1946 Apr Unknown Confirmed 2 Historical Observations
1945 Sep Unknown Confirmed 2 Historical Observations
1943 Feb 1 ± 30 days Unknown Confirmed 2 Historical Observations
1940 Unknown Confirmed 2 Historical Observations
1938 Oct Unknown Confirmed 2 Historical Observations
1934 Nov 1935 Feb Confirmed 2 Historical Observations Tephra layer PM11?
1933 Sep 1933 Oct Confirmed 2 Historical Observations
1932 Jun Unknown Confirmed 2 Historical Observations
1929 Unknown Confirmed 2 Historical Observations
1925 Jul Unknown Confirmed 2 Historical Observations
1923 Feb Unknown Confirmed 2 Historical Observations
1921 Sep Unknown Confirmed 2 Historical Observations
1915 Unknown Confirmed 2 Historical Observations
1912 Jan Unknown Confirmed 2 Historical Observations
1911 Unknown Confirmed 2 Historical Observations
1908 Unknown Confirmed 2 Historical Observations
1854 Sep Unknown Confirmed 2 Historical Observations
1852 Unknown Confirmed 2 Historical Observations
1830 Unknown Confirmed 2 Historical Observations
1771 Unknown Confirmed 2 Historical Observations
1730 ± 25 years Unknown Confirmed   Radiocarbon (corrected) Tephra layer PM9
1550 (?) Unknown Confirmed   Radiocarbon (corrected) Tephra layer PM7
1450 (?) Unknown Confirmed   Radiocarbon (corrected)
1150 (?) Unknown Confirmed 2 Radiocarbon (corrected) Tephra layer PM6
1050 (?) Unknown Confirmed   Radiocarbon (corrected)
0950 (?) Unknown Confirmed   Radiocarbon (corrected)
0850 BCE (?) Unknown Confirmed 3 Radiocarbon (corrected) Tephra layer SC
1100 BCE (?) Unknown Confirmed   Radiocarbon (corrected)
1400 BCE (?) Unknown Confirmed 2 Radiocarbon (corrected) Tephra layer PM4
2050 BCE (?) Unknown Confirmed   Radiocarbon (corrected)
2250 BCE (?) Unknown Confirmed 4 Radiocarbon (corrected) Tephra layer PM3
2350 BCE (?) Unknown Confirmed 3 Radiocarbon (corrected) Tephra layer PM2
3200 BCE (?) Unknown Confirmed 4 Radiocarbon (corrected) Tephra layer PM1
3450 BCE (?) Unknown Confirmed   Radiocarbon (corrected)
4150 BCE (?) Unknown Confirmed   Radiocarbon (corrected)
6600 BCE (?) Unknown Confirmed 6 Radiocarbon (corrected) Karymsky caldera, Tephra layer KRM

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.

Braitseva O A, 1998. Phreatomagmatic eruption in Lake Karymskoe (East Kamchatka) ~6500 14C years B.P. and Holocene episodes of basalt magma injection under the Karymsky area. Volc Seism, 19: 685-692 (English translation).

Braitseva O A, Melekestsev I V, 1991. Eruptive history of Karymsky volcano, Kamchatka, USSR, based on tephra stratigraphy and 14C dating. Bull Volc, 53: 195-206.

Erlich E N, 1986. Geology of the calderas of Kamchatka and Kurile Islands with comparison to calderas of Japan and the Aleutians, Alaska. U S Geol Surv Open-File Rpt, 86-291: 1-300.

Erlich E N, Gorshkov G S (eds), 1979. Quaternary volcanism and tectonics in Kamchatka. Bull Volc, 42:1-4.

Fedotov S A, Masurenkov Y P (eds), 1991. Active Volcanoes of Kamchatka. Moscow: Nauka Pub, 2 volumes.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Johnson J B, Aster R C, Ruiz M C, Malone S D, McChesney P J, Lees J M, Kyle P R, 2003. Interpretation and utility of infrasonic records from erupting volcanoes. J Volc Geotherm Res, 121: 15-63.

Johnson J B, Lees J M, 2000. Plugs and chugs--seismic and acoustic observations of degassing explosions at Karymsky, Russia and Sangay, Ecuador. J Volc Geotherm Res, 101: 67-82.

Kozhemyaka N N, 1995. Active volcanoes of Kamchatka: types and growth time of cones, total volumes of erupted material, productivity, and composition of rocks. Volc Seism, 16: 581-594 (English translation).

Leonov V L, Grib Y N, 2005. Late-Pleistocene geology and structural control of the Karymsky volcanic center geothermal fields, Kamchatka: evidence for evolution of magmatic. Proc World Geotherm Cong 2005, Antalya, Turkey, 24-29 April 2005, p 1-8.

Luchitsky I V (ed), 1974. History of the Development of Relief of Siberia and the Far East. Kamchatka, Kurile and Komander Islands. Moscow: Nauka Pub, 439 p (in Russian).

Melekestsev I V, Braitseva O A, Ponomareva V V, 1989. Prediction of volcanic hazards on the basis of the study of dynamics of volcanic activity, Kamchatka. In: Latter J H (ed), {Volcanic Hazards - Assessment and Monitoring}, Berlin: Springer-Verlag, p 10-35.

Ozerov A, Ispolatov I, Lees J, 2003. Modeling Strombolian eruptions of Karymsky volcano, Kamchatka, Russia. J Volc Geotherm Res, 122: 265-280.

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Vakin E A, Pilipenko G F, 1998. Hydrothermal activity in Lake Karymskoe after the 1996 underwater eruption. Volc Seism, 19: 737-767 (English translation).

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Karymsky, the most active volcano of Kamchatka's eastern volcanic zone, is a symmetrical stratovolcano constructed within a 5-km-wide caldera that formed during the early Holocene. The caldera cuts the south side of the Pleistocene Dvor volcano and is located outside the north margin of the large mid-Pleistocene Polovinka caldera, which contains the smaller Akademia Nauk and Odnoboky calderas. Most seismicity preceding Karymsky eruptions originated beneath Akademia Nauk caldera, which is located immediately south of Karymsky volcano. The caldera enclosing Karymsky volcano formed about 7600-7700 radiocarbon years ago; construction of the Karymsky stratovolcano began about 2000 years later. The latest eruptive period began about 500 years ago, following a 2300-year quiescence. Much of the cone is mantled by lava flows less than 200 years old. Historical eruptions have been vulcanian or vulcanian-strombolian with moderate explosive activity and occasional lava flows from the summit crater.