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ALASKA VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Saturday, January 14, 2023, 12:05 PM AKST (Saturday, January 14, 2023, 21:05 UTC)
Seismic activity is elevated at Semisopochnoi Volcano, with episodic tremor and occasional small earthquakes detected. Satellite and webcam 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.
Only a few small local earthquakes were detected at Great Sitkin Volcano over the past 24 hours. Satelllite and webcam views of the volcano were obscured by clouds, but radar data collected by satellite yesterday (1/13) shows that lava continues to erupt in the volcano's summit crater.
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 in clear satellite and webcam views. Weak seismicity continues with occsaional small local earthquakes 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, with several small earthquakes detected. This activity may be due to the movement of magma beneath the volcano. 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
Information on all Alaska volcanoes is available at: http://www.avo.alaska.edu.
For definitions of Aviation Color Codes and Volcano Alert Levels, see: http://www.avo.alaska.edu/color_codes.php
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Michelle Coombs, Scientist-in-Charge, USGS mcoombs@usgs.gov (907) 786-7497
David Fee, Coordinating Scientist, UAFGI dfee1@alaska.edu (907) 378-5460
The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G22AC00137
Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.
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