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Urataman volcansomma volcano 678 m / 2,224 feet
Simushir Island, Iles Kuriles, 47.12°N / 152.25°E Condition actuelle: en sommeil (1 sur 5)
Style éruptif tipique: Explosive
Eruptions du volcan Urataman: unknown, within the past 10,000 years Derniers séismes proches:
Its caldera walls rise 450 m above a 250-m-deep bay. Sea water enters the caldera through a narrow gap in the northern rim and creates the half-moon-shaped Brouton Bay, corresponding to about half the surface of the caldera. Within the past 10,000 years and after the formation of the caldera, a large new central cone, the andesitic Urataman volcano proper, has grown in the SE part of the caldera. Besides the central vent, there are 2 cinder cones on the northern and a lava dome on the NW flank of Urataman volcano. |
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