Tanaga volcano (Aleutian Islands, USA): increased seismic activity, alert status raised to Yellow
Wed, 8 Mar 2023, 19:36 19:36 PM | BY: MARTIN
Tanaga volcano in November 2012 (image: Roger Clifford)
At about 08:45 PM local time this evening, the activity escalated with earthquakes occurring as often as 2 or 3 each minute. Initial locations of these earthquakes place them at shallow depths beneath the summit of the volcano, and the largest of these earthquakes have magnitudes between M 2 and M 3.
In response to this increase in seismicity, the AVO observatory raised the Aviation Color Code to Yellow.
Source: Alaska Volcano Observatory volcano activity update 8 March 2023
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Previous news
Wed, 8 Mar 2023, 15:00
Tanaga volcano (Andreanof Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 1 March-7 March 2023 (New Activity / Unrest)
At 2215 on 7 March AVO raised the Aviation Color Code for Tanaga to Yellow and the Volcano Alert Level to Advisory due to increased seismicity. Earlier that afternoon, starting at about 1330, seismicity began to increase and by around 2045 earthquakes were occurring at a rate of 2-3 per minute. The events were located at shallow depths and the largest events were M2-3. ... Read all
Thu, 2 Mar 2023, 11:00
Tanaga volcano (Andreanof Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 1 March-7 March 2023 (New Activity / Unrest)
At 2215 on 7 March AVO raised the Aviation Color Code for Tanaga to Yellow and the Volcano Alert Level to Advisory due to increased seismicity. Earlier that afternoon, starting at about 1330, seismicity began to increase and by around 2045 earthquakes were occurring at a rate of 2-3 per minute. The events were located at shallow depths and the largest events were M2-3. ... Read all
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