ALASKA VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Tuesday, February 21, 2023, 11:56 AM AKST (Tuesday, February 21, 2023, 20:56 UTC)
Very low level seismicity was observed over the past day with one small local earthquake detected. Satellite and web camera views were obscured by clouds over the past day.
Great Sitkin Volcano is monitored by local seismic and infrasound sensors, satellite data, web cameras, and regional infrasound and lightning networks.
No unusual activity was observed in seismic or infrasound data over the past day. Web camera and satellite views were obscured by clouds.
Small eruptions producing minor ash deposits within the vicinity of the active north crater of Mount Young and ash clouds usually under 10,000 ft (3 km) above sea level have characterized the recent activity. Additional ash-producing events could occur again with little warning.
Semisopochnoi volcano is monitored by local seismic and infrasound sensors, satellite data, web cameras, and regional infrasound and lightning networks.
Seismicity remains elevated with earthquakes detected over the past 24 hours. Satellite views of the volcano were obscured by clouds.
Takawangha volcano is monitored by local seismic and infrasound sensors, satellite data, and regional infrasound and lightning networks.
OTHER ALASKA VOLCANOES
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Michelle Coombs, Scientist-in-Charge, USGS email@example.com (907) 786-7497
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