Shiveluch, Russia

KVERT reported that seismic activity at Shiveluch was above background levels on 12 and 14 May and at background levels the other days during 9-16 May; gas-and-ash explosions may have occurred on 14 May. During 9 and 11-15 May, hot avalanches descended the lava dome and fumarolic activity was noted. Observations of satellite imagery revealed that a thermal anomaly was present in the crater daily. During 11-13 May, ash and steam plumes drifted SE, SW, and NW. An ash plume at an altitude of 3.6 km (11,800 ft) a.s.l. was spotted on 14 May. The Level of Concern Color Code remained at Orange.

Based on information from the KEMSD, the Tokyo VAAC reported that on 20 May an eruption plume rose to an altitude of 5.8 km (19,000 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.”

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