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Ketoi

Google Earth Placemark
  • Country
  • Subregion Name
  • Volcano Type
  • Last Known Eruption
  • 1172 m
    3844 ft
  • 47.350°
  • 152.475°
  • Elevation
  •  
  • Latitude
  • Longitude

16 January-22 January 2013

SVERT reported that gas-and-steam emissions from Ketoi's Pallas Peak were observed in satellite imagery during 16-17 January.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)



 Available Weekly Reports




2013: January |
2010: May |

16 January 2013              Back to Top

SVERT reported that gas-and-steam emissions from Ketoi's Pallas Peak were observed in satellite imagery during 16-17 January.

Sources: Sakhalin Volcanic Eruption Response Team (SVERT)

5 May 2010              Back to Top

SVERT reported that increased fumarolic activity from Ketoi was noted in satellite imagery on 4 May.

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
1960 Sep 27 Unknown Confirmed 2 Historical Pallas Peak
1924 Unknown Confirmed 2 Historical Pallas Peak
1843 Jul 1846 Confirmed 2 Historical Pallas Peak

The circular, 10-km-wide Ketoi island, which rises across the 19-km-wide Diana Strait from Simushir Island, hosts of one of the most complex volcanic structures of the Kuril Islands. The rim of a 5-km-wide Pleistocene caldera is exposed only on the NE side. A younger 1172-m-high stratovolcano forming the NW part of the island is cut by a horst-and-graben structure containing two solfatara fields. A 1.5-km-wide freshwater lake fills an explosion crater in the center of the island. Pallas Peak, a large andesitic cone in the NE part of the caldera, is truncated by a 550-m-wide crater containing a brilliantly colored turquoise crater lake. Lava flows from Pallas Peak overtop the caldera rim and descend nearly 5 km to the SE coast. The first historical eruption of Pallas Peak, during 1843-46, was its largest.