ALASKA VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Tuesday, January 10, 2023, 11:20 AM AKST (Tuesday, January 10, 2023, 20:20 UTC)
Signals suggestive of very weak explosive activity were detected in seismic and infrasound data at Semisopochnoi Volcano yesterday, although clear webcam views showed only the typical minor steam emissions—no evidence of explosive activity or ash emissions was seen. Satellite images were cloudy and no plumes were observed.
Small eruptions producing minor ash deposits within the vicinity of the active north crater of Mount Young (formerly known as Mount Cerberus) 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.
No volcanic activity at Great Sitkin Volcano was seen in cloudy satelllite and webcam views over the past day. However, lava likely continued to erupt in the volcano's summit crater. Only a few small local earthquakes were detected at Great Sitkin during the last 24 hours.
Great Sitkin Volcano is monitored by local seismic and infrasound sensors, satellite data, web cameras, and regional infrasound and lightning networks.
No eruptive activity was observed at Pavlof Volcano over the past day. Satellite views were cloudy, but clear webcam views showed nothing of note. No notable seismicity was detected during the last 24 hours.
Small explosions associated with the current eruption could happen at any time and may be accompanied by small ash plumes within the immediate vicinity of the volcano. The level of unrest at Pavlof Volcano can change quickly and the progression to more significant eruptive activity can occur with little or no warning.
Pavlof Volcano is monitored by local seismic and infrasound sensors, satellite data, web cameras, and regional infrasound and lightning networks.
The ongoing swarm near Takawangha Volcano continued over the past day, but at a reduced rate compared to previous days. This activity may be due to the movement of magma beneath the volcano. No signs of volcanic activity were observed in partly cloudy satellite images.
OTHER ALASKA VOLCANOES
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