In the Pacific Northwest, a surge of seismic activity has pushed one underwater volcano into what researchers describe as a very high likelihood of eruption, with some models putting the odds near 95 ...

In an exciting development, scientists from the University of Washington have observed signs that an underwater volcano off the coast of the Pacific Northwest is preparing to erupt, possibly within ...

Add Yahoo as a preferred source to see more of our stories on Google. The Pacific Northwest has always carried an air of quiet menace — a region where breathtaking beauty overlaps with a geological ...

Mount Rainier is not getting ready to erupt, but scientists at the Pacific Northwest Seismic Network might blow their stacks over having to respond to a rumor about increased tremor activity at the ...

A swarm of offshore earthquakes near the Pacific Northwest poses no threat to land, says Harold Tobin of the Pacific Northwest Seismic Network.

The explosion was so significant that tephra, a general term for fragments of volcanic rock, was reported falling across the park and in nearby communities. Some of the tephra measured up to five ...