Pyroclastic flows have passed downwards on the Baidarnaya river 5 km. This information was summarized from the Smithsonian Institution's Preliminary Notices of Volcanic Activity. A large thermal anomaly was observed in satellite images of the volcano. On 22 May, the volcano again erupted producing a mushroom- shaped ash column to a height of about 33,000 ft. On 24 May, a gas and steam plume rose 1200 m above the dome.
Seismic activity remains above background levels.
This information was summarized from the Smithsonian Institution's Preliminary Notices of Volcanic Activity. On 19 May, the Sheveluch volcano erupted and sent an ash cloud skyward to 33,000 ft. This information was summarized from the Smithsonian Institution's Preliminary Notices of Volcanic Activity. Small pyroclastic flows were visible on the south-west slope. This information was summarized from the Smithsonian Institution's Preliminary Notices of Volcanic Activity.