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Ketoi volcan

Mise à jour: 7 déc.. 2022 08:03 GMT -
stratovolcan 1172 m / 3,845 ft
Kurile Islands, Russia, 47.35°N / 152.48°E
Condition actuelle: normal / en sommeil (1 sur 5)
Last update: 14 déc. 2021

Ketoi volcano forms a 10 km wide island 19 km NE of Simushir Island across Diana Strait in the Kurile Islands. The first historical eruption of Pallas Peak, during 1843-46, was its largest. Strong fumarolic activity was observed on the northern flank of Pallas Peak in the 1980's.

Montrer carte interactive
Style éruptif tipique: explosive
Eruptions du volcan Ketoi: 1960, 1924, 1843-46

Derniers séismes proches

No recent earthquakes

Introduction

The volcano's structure is very complex and includes a mostly buried 5-km-wide Pleistocene caldera exposed only on the NE side. A younger 1172-m-high stratovolcano forms the NW part of the island, but cut by a horst-and-graben structure containing 2 fumarole fields.
A 1.5-km-wide freshwater lake (Lake Malakhitovoye) fills an explosion crater in the center of the island.
Pallas Peak> is a large andesitic cone in the NE part of the caldera and 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.
Source: Smithsonian GVP Ketoi volcano information


See also: Sentinel hub | Landsat 8 | NASA FIRMS
mer., 19 sept. 2018, 06:00

Ketoi volcano (Kuril Islands, Russia) - Smithsonian / USGS Weekly Volcanic Activity Report for 19 September-25 September 2018 (New Activity / Unrest)

Based on a report from SVERT the Tokyo VAAC reported that on 21 September an ash plume from Ketoi drifted NE. ... Read all
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