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 ...

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 ...

Although less well-known than other volcanic giants of the Cascades (particularly Mount St. Helens), this underwater volcano is actually the most active one in the Pacific Northwest. With ...

The U.S. is home to some of the world’s most powerful volcanoes, but which states have the most? From Hawaii’s lava flows to the towering peaks of the Pacific Northwest, these states experience the ...