KVERT reported that seismic activity at Kliuchevskoi had slowly increased since June and was slightly above background levels during 1-8 August. Observations of satellite imagery revealed that the size and intensity of a thermal anomaly in the crater increased. On 8 August, the level of Concern Color Code was raised to Yellow.
Sources: Kamchatkan Volcanic Eruption Response Team (KVERT) – “Report provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”
More than 100 flank eruptions have occurred at Kliuchevskoi during the past roughly 3000 years!