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AVO raises alert level for Tanaga and Takawangha volcanoes amid increased seismic activity, Alaska

By The Watchers

Seismic activity beneath the Tanaga and Takawangha volcanoes on Tanaga Island, Alaska, approximately 8 kilometers (5 miles) apart, has increased the potential for eruption and prompted the Alaska Volcano Observatory (AVO) to raise the Aviation Color Code to ORANGE and the Volcano Alert Level to WATCH for both volcanoes on March 10, 2023.

If an eruption were to occur, it is uncertain at this stage if it would come from Tanaga or Takawangha, AVO said, adding that their analysts continue to monitor the situation closely, and locate events as time permits.1, 2

Earthquakes are occurring under Tanaga Island at a rate of up to several per minute, AVO said. The largest event in 24 hours to 02:22 UTC on March 10 was a M3.9.

No eruptive activity or signs of unrest have been detected in satellite or other monitoring data.

Both volcanoes are monitored with a local seismic network, a single local infrasound sensor, regional infrasound and lightning sensors, and satellite imagery.

Read Full Article Here…(watchers.news)


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