KVERT reported that seismic activity at Kliuchevskoi was above background levels during 19-26 December. Gas-and-steam plumes containing ash rose to an altitude of 7 km (23,000 ft) a.s.l. during 20-24 December. Lava effusion on the NW flank continued and Strombolian activity was noted during 21-25 December. Analysis of satellite imagery revealed a large daily thermal anomaly in the crater. Ash plumes drifted 270 km E and NE during 20-25 December.
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.”