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  • 1440 Daily Digest

Rumbles in Alaska

Alaskans spent the weekend experiencing an uptick in seismic activity, with a series of volcanic eruptions from the remote Shishaldin Volcano Friday followed by a 7.2 magnitude earthquake late Saturday morning off the southwestern coast, which briefly triggered a tsunami warning.

The volcano is nestled in the middle of the sparsely populated Aleutian Islands, part of the archipelago making up the Alaskan peninsula. Shishaldin started exhibiting low-intensity eruptions Tuesday but began Friday with a burst that sent an ash cloud nearly 40,000 feet in the air. Meanwhile, the Saturday earthquake was the strongest to hit the area since an 8.2 magnitude quake in 2021. The tsunami warning was canceled early Sunday morning, with minimal impact from the tremors.

The region sits along the northeastern ridge of the "Ring of Fire"—a set of tectonic boundaries that encircle the Pacific basin, giving rise to numerous volcanoes and frequent earthquakes along its perimeter. See an overview of the subject here (w/video).

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