Activity at Kliuchevskoi Volcano, Kamchatka Peninsula, Russia

This image, taken by astronauts on board the International Space Station, highlights one of the most active volcanic regions on Earth - the Kamchatka Peninsula in far eastern Russia. The three largest volcanoes visible at image center include Kliuchevskoi, Bezymianny, and Ushkovsky. Kliuchevskoi is the most active volcano with geologic, historical, and observational data indicating no major periods of quiescence since the volcano formed approximately 6000 years ago. A thin ash and steam plume is visible extending to the east-southeast from the summit of Kliuchevskoi, typical of activity reported at the volcano from 2-5 May 2015 when the image was taken. The flanks of the volcano are also covered with dark ash deposits, in contrast to the snow-covered flanks of both Bezymianny and Ushkovsky.

The Kamchatka Peninsula boasts one of the highest concentrations of volcanic geologic features on Earth, including over 300 identified volcanoes (29 considered active), hot springs, and geysers. In addition, abundant volcanic rock exposures and volcanogenic sediments attest to the highly active tectonic setting of the peninsula, a result of subduction of the Pacific oceanic plate beneath the overriding Eurasia continental plate. In addition to the high geological interest of the region, the peninsula's abundant wildlife and distinctive coastal and inland geography led to designation of the UNESCO Volcanoes of Kamchatka World Heritage Site in 1996 (extended in 2001).

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This service is provided by the International Space Station program and the JSC Earth Science & Remote Sensing Unit, ARES Division, Exploration Integration Science Directorate.
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