Kliuchevskoi, Kamchatka, Russia

KVERT reported that seismic activity at Kliuchevskoi was above background levels during 5-12 December. Strombolian activity ejected bombs 500 m above the crater and lava effusion on the NW flank continued. Phreatic bursts occurred where the lava flow front contacted the Erman Glacier. On 6 and 9 December, ashfall was reported in Klyuchi, about 30 km to the NE. Analysis of satellite imagery revealed a large daily thermal anomaly in the crater. Gas-and-steam plumes containing small amounts of ash rose to altitudes of 5-6 km (16,400-19,700 ft) a.s.l. and drifted more than 300 km E. During 8-10 December, ash plumes rose to altitudes of 7.5-8 km (24,600-26,200 ft) a.s.l. and drifted about 700 km E. The Level of Concern Color Code remained Orange.

Based on information from KVERT and analysis of satellite imagery, the Tokyo VAAC reported that during 13-15 December eruptions ash produced plumes to altitudes of 5.2-8.2 km (17,000-27,000 ft) a.s.l. Plumes drifted E and NE.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC) –  – “Report provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

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