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Karymsky volcano

Karymsky is the most active volcano of Kamchatka's eastern volcanic zone and a perfect symmetrical stratovolcano. Ash eruptions from Karymski can come in the way of aircraft flight routes across the N Pacific. Karymsky, the most active volcano of Kamchatka's eastern volcanic zone in one of the world's volcanoes with persistent activity and has been erupting for at least about 500 years.

Background:

Much of the cone is surrounded by lava flows no older than 200 years. Historical eruptions have been vulcanian or vulcanian-strombolian with moderate explosive activity and occasional lava flows from the summit crater.
The cone has been constructed during the past 2000 years within a 5-km-wide caldera that formed about 9,000 year ago within a complex system of overlapping calderas. The caldera cuts the south side of the older Dvor volcano and is located outside the north margin of a large, still older caldera (the mid-Pleistocene Polovinka caldera), which contains the smaller Akademia Nauk and Odnoboky calderas.
Most seismicity preceding Karymsky eruptions originated beneath Akademia Nauk caldera, which is located immediately south of Karymsky volcano.
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Source: GVP, Smithsonian Institution

Karymsky Photos:

The summit cone of Karymsky with parts of the Karymsky caldera walls behind. (Photo: Tom Pfeiffer)	The active caldera lake of Akademia Nauk volcano southeast of Karymsky seen from the helicopter. (Photo: Tom Pfeiffer)	On our request, the helicopter pilots agree to fly a round over Karymsky's steep and deep crater. (Photo: Tom Pfeiffer)
The helicopter keeps the engine running while we unload everything to return as soon as possible, before the weather worsens; fortunately, the rotor blades are at safe he...	Ash emission from Karymsky volcano (March 2011) (Photo: Sergey Krasnoshchokov)	Karymsky volcano (Kamchatka) with an ash eruption (Photo: Norbert Fischer)

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