KVERT reported that seismic activity at Shiveluch was above background levels during 30 January-6 February. Based on interpretations of seismic data, ash plumes likely rose to altitudes of 5.3 km (17,400 ft) a.s.l. Lava flows continued to be active on the S and N flanks. Weak gas-and-steam activity was noted on 30 January and 1 February. Analysis of satellite imagery revealed a large thermal anomaly on the lava dome during 30 January-2 February, and on 5 February. The Level of Concern Color Code remained at Orange.
Based on information from KEMSD, the Tokyo VAAC reported that an eruption on 7 February produced a plume that rose to an altitude of 4.9 km (16,000 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.”