Kamchatka volcanoes: Klyuchevskaya Sopka (up), Bezymianny (down), both in activity, and the Kamen (middle).
|Elevation||2,882 m (9,455 ft)|
|Last eruption||June to July 2014|
Bezymianny (Russian: Безымянный — lit. unnamed) is an active stratovolcano in Kamchatka, Russia. Before its noted 1955-56 eruption, Bezymianny volcano had been considered extinct. The modern Bezymianny volcano, much smaller than its massive neighbors Kamen and Kliuchevskoi, was formed about 4700 years ago over a late-Pleistocene lava-dome complex and an ancestral volcano that was built between about 11,000–7000 years ago. There have been three periods of intensified activity in the past 3000 years. The latest period, which was preceded by a 1000-year quiescence, began with the dramatic 1955-56 eruption. This eruption, similar to that of Mount St. Helens in 1980, produced a large horseshoe-shaped crater that was formed by collapse of the summit and an associated lateral blast. Subsequent episodic but ongoing lava-dome growth, accompanied by intermittent explosive activity and pyroclastic flows, has largely filled the 1956 crater. The volcano was still erupting as of January 5, 2013.
- "Bezymianny". Global Volcanism Program. Smithsonian Institution.
- Bezymianny Volcano live webcam
- Holocene Volcanoes in Kamchatka / Bezymianny
- Google Maps satellite image
- Information about Bezymyanny (Russian)
- For its eruptive history, go to http://www.volcano.si.edu/volcano.cfm?vn=300250 and click on its tab marked "Eruptive History".
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