The Pacific Northwest’s most active (undersea) volcano is getting a little frisky

The most active volcano in the Pacific Northwest is the Axial Seamount. It’s located 300 miles west of Astoria, Oregon, and a mile under the ocean. It’s erupted three times in the past 25 years.

And now after a few years of relative slumber, the undersea volcano appears to be waking up again. Data collected on Axial show the magma chamber is filling up and hundreds of small earthquakes are happening in the area each day.