Sarychev Peak volcano, Russia
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Sarychev Peak volcano, Russia
A cloudcap obscurs the dramatic, steep-walled summit crater of Sarychev volcano, one of the most active volcanoes of the Kuril Islands.
Sarychev occupies the NW end of Matua Island in the central Kurils in this NASA Space Shuttle image (with north to the top).
The andesitic central cone was constructed within a mostly buried 3-3.5 km wide caldera; an older volcano forms the SE part of the island (lower right).
Fresh-looking lava flows descend all sides of Sarychev Peak.
The small island of Toporkovyi is partially visible at the right-center.
Sarychev Peak, one of the most active volcanoes of the Kuril Islands, occupies the NW end of Matua Island in the central Kuriles.
The andesitic central cone was constructed within a 3-3.5 km wide caldera, whose rim is exposed only on the SW side.
A dramatic 250-m-wide, very steep-walled crater with a jagged rim caps the volcano.
The substantially higher SE rim forms the 1496 m high point of the island.
Fresh-looking lava flows descend all sides of Sarychev Peak and often form capes along the coast.
Much of the lower-angle outer flanks of the volcano are overlain by pyroclastic-flow deposits.
Eruptions have been recorded since the 1760's and include both quiet lava effusion and violent explosions.
One of the largest historical eruptions of Sarychev Peak in 1946 produced pyroclastic flows that reached the sea.
PHOTO SOURCE:NASA Space Shuttle image ISS005-E-17796, 2002 (//eol.jsc.nasa.gov/).
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