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In page Klyuchevskaya Sopka:

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As early as 27 February 2010, gas plumes had erupted from Klyuchevskaya Sopka, reaching elevations of 7,000 m (22,966 ft). During the first week of March 2010, both explosive ash eruptions and effusive lava eruptions occurred until March 9th; the ash cloud was reported to have reached an elevation of 6,000 m (19,685 ft). As well, significant thermal anomalies have been reported, and gas-steam plumes extended roughly 50 km (31 mi) to the north-east from the volcano beginning on March 3rd.[citation needed]