FAQ







Chirpoi

Google Earth Placemark
  • Country
  • Subregion Name
  • Volcano Type
  • Last Known Eruption
  • 742 m
    2434 ft
  • 46.525°
  • 150.875°
  • Elevation
  •  
  • Latitude
  • Longitude

24 April-30 April 2013

SVERT reported that a weak thermal anomaly over Snow, a volcano of Chirpoi, was detected in satellite images on 24 and 26 April.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)



 Available Weekly Reports




2013: January | February | March | April |
2012: November | December |

24 April 2013              Back to Top

SVERT reported that a weak thermal anomaly over Snow, a volcano of Chirpoi, was detected in satellite images on 24 and 26 April.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

10 April 2013              Back to Top

SVERT reported that a weak thermal anomaly over Snow, a volcano of Chirpoi, was detected in satellite images during 12-13 April; cloud cover prevented observations of the volcano on other days during 8-15 April.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

3 April 2013              Back to Top

SVERT reported that a weak thermal anomaly over Snow, a volcano of Chirpoi, was detected in satellite images on 6 April; cloud cover prevented observations of the volcano on other days during 1-8 April.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

13 March 2013              Back to Top

SVERT reported that a weak thermal anomaly over Snow, a volcano of Chirpoi, was detected in satellite images on 14 March; cloud cover prevented observations of the volcano on other days during 11-18 March.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

6 March 2013              Back to Top

SVERT reported that steam-and-gas emissions from Snow, a volcano of Chirpoi, were detected in satellite images on 5 March; cloud cover prevented observations of the volcano on other days during 4-11 March.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

27 February 2013              Back to Top

SVERT reported that weak steam-and-gas emissions from Snow, a volcano of Chirpoi, were observed on 25 February, and 1 and 3 March. A thermal anomaly was detected in satellite images on 28 February and 3 March. Cloud cover prevented observations of the volcano on other days during 25 February-4 March. The Aviation Color Code was Yellow.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

20 February 2013              Back to Top

SVERT reported that a thermal anomaly and weak steam-and-gas emissions from Snow, a volcano of Chirpoi, were detected in satellite images during 19 and 22-23 February; cloud cover prevented observations of the volcano on other days during 18-25 February. The Aviation Color Code was Yellow.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

13 February 2013              Back to Top

SVERT reported that a thermal anomaly and weak steam-and-gas emissions from Snow, a volcano of Chirpoi, were detected in satellite images during 14-15 February; cloud cover prevented observations of the volcano on other days during 11-18 February. The Aviation Color Code was Yellow.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

6 February 2013              Back to Top

SVERT reported that a thermal anomaly and steam-and-gas emissions from Snow, a volcano of Chirpoi, were detected in satellite images on 7 and 10 February; cloud cover prevented observations of the volcano on other days during 4-11 February.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

30 January 2013              Back to Top

SVERT reported that steam-and-gas emissions from Snow, a volcano of Chirpoi, were detected in satellite images on 1 February; cloud cover prevented observations of the volcano on other days during 28 January-4 February.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

23 January 2013              Back to Top

SVERT reported that a thermal anomaly and steam-and-gas emissions from Snow, a volcano of Chirpoi, on 8 January, were detected on 21, 23, and 25 January; cloud cover prevented observations of the volcano on other days during 22-28 January.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

9 January 2013              Back to Top

SVERT reported that a thermal anomaly was detected over Snow, a volcano of Chirpoi, on 8 January, and steam-and-gas plumes were detected on 9 and 11 January; cloud cover prevented observations of the volcano on other days during 7-14 January.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

2 January 2013              Back to Top

SVERT reported that a thermal anomaly was detected over Snow, a volcano of Chirpoi, during 5-6 January; cloud cover prevented observations of the volcano on other days during 1-7 January.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

26 December 2012              Back to Top

SVERT reported that a thermal anomaly was detected over Snow, a volcano of Chirpoi, during 24-25, 28, and 30 December; cloud cover prevented observations of the volcano on other days during 24-31 December.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

19 December 2012              Back to Top

SVERT reported that a thermal anomaly was detected over Snow, a volcano of Chirpoi, during 17, 19, and 21-22 December. A steam-and-gas plume was observed on 19 December. Cloud cover prevented observations of the volcano on the other days during 10-17 December.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

12 December 2012              Back to Top

SVERT reported that a thermal anomaly was detected over Snow, a volcano of Chirpoi, during 11 and 13-15 December. A steam-and-gas plume was observed on 15 December. Cloud cover prevented observations of the volcano on other days during 10-17 December.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

5 December 2012              Back to Top

SVERT reported that a thermal anomaly was detected over Snow, a volcano of Chirpoi, during 3-4, 6, and 8 December; cloud cover prevented observations of the volcano on other days during 2-10 December.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

28 November 2012              Back to Top

SVERT reported that a thermal anomaly was detected over Snow, a volcano of Chirpoi, during 26-28 November; cloud cover prevented observations of the volcano on other days during 29 November-2 December.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

21 November 2012              Back to Top

SVERT reported that a thermal anomaly was detected over Snow, a volcano of Chirpoi, on 20, 22, and 25 November, possibly indicating a lava flow on the SE flank.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)



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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1982 Nov 22 Unknown Confirmed 2 Historical Snow
1960 Oct 20 Unknown Confirmed 2 Historical Snow
1879 May 1879 Jun Confirmed 2 Historical Snow
1857 Jul Unknown Confirmed 3 Historical Cherny
1854 Jun 24 Unknown Confirmed 2 Historical Snow (or Cherny)
1811 Jun 11 Unknown Confirmed 2 Historical Snow
1790 ± 20 years Unknown Confirmed   Historical Snow
1712 Dec 31 ± 365 days Unknown Confirmed 4 Historical Cherny

Chirpoi, a small island lying between the larger islands of Simushir and Urup, contains a half dozen volcanic edifices constructed within an 8-9 km wide, partially submerged caldera. The southern rim of the caldera is exposed on nearby Brat Chirpoev Island. Two volcanoes on Chirpoi Island have been historically active. The symmetrical Cherny volcano, which forms the 691 m high point of the island, erupted twice during the 18th and 19th centuries. The youngest volcano, Snow, originated between 1770 and 1810. It is composed almost entirely of lava flows, many of which have reached the sea on the southern coast. No historical eruptions are known from 742-m-high Brat Chirpoev, but its youthful morphology suggests recent strombolian activity.