You’ve probably heard of famous Northwest volcanoes like Mount St. Helens or Mount Hood. But did you know the region’s most active volcano is at the bottom of the ocean, 300 miles off the ...

A map of Axial Seamount shows the undersea volcano sits ... that’s why we call it the most active volcano in the Pacific ...

Don’t be too hard on yourself if you’ve never heard of the Northwest’s most active ... an eruption from a shallow underwater volcano in the South Pacific nation of Tonga in Jan. 2022 sent ...

Axial Seamount off Oregon's coast is the most active volcano in the Pacific Northwest, about 300 miles offshore and just ...

Axial Seamount doesn’t pose a threat to humans, but observing what happens before and after its potential eruption could help ...

Thanks to a dense array of sensors on the volcano’s summit and flanks, scientists know that Axial Seamount has been swelling with magma and getting taller, a sign that it’s ready to go off.

Known as Axial Seamount, it’s the most active volcano in the Pacific Northwest – though one most people haven’t heard of because it lies about 300 miles offshore and just under a mile ...

Known as Axial Seamount, it’s the most active volcano in the Pacific Northwest — though one most people haven’t heard of because it lies about 300 miles offshore and just under a mile ...