KVERT reported that seismic activity at Karymsky was at background levels during 21-23 August and above background levels during 24-27 August. Possible explosions may have generated ash plumes to an altitude of 3.2 km (10,500 ft) a.s.l. Analysis of satellite imagery revealed a thermal anomaly in the crater during 24 and 26-28 August and that an ash plumes drifted SE on 27 August. The Level of Concern Color Code remained at Orange.
Based on analysis of satellite imagery and information from KEMSD, the Tokyo VAAC reported that on 29 August and 2 September eruption plumes rose to an approximate altitude of 3 km (10,000 ft) a.s.l.
Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”