For many people who lived through the 1980 eruption of Mount Saint Helens, it is the biggest news story of their lifetimes.

Over the Sierra crest — about 150 miles to the east of Manteca, Oakdale, and Turlock — is one of the world’s largest active ...

One of the Pacific Ocean’s lesser-known volcanoes will blow its vent in the coming months, causing 10,000 earthquakes in one day. Here’s what scientists are saying.

You know that very special rock you couldn’t resist picking up and taking home? The one with the uncanny shape, the ...

May 18th marks the 45th anniversary of the eruption of Mt. St. Helens and the creation of the USGS Cascades Volcano Observatory. This Saturday they are holding an open house to teach people about ...

However, most studies focus on individual volcanoes, making it difficult to identify general trends across an entire volcanic arc. The Cascade Range, stretching from California to British Columbia ...

The first event is Wednesday with Alysa Adams, lead interpretive specialist of the Mount St. Helens Visitor Center.

Pikas, small members of the rabbit family, are known for their distinctive squeak-toy alarm calls and inhabit the rocky slopes of the Cascade volcanoes. “Pikas live in beautiful places where ...

Things are heating up hundreds of miles off the coast of Oregon, where a large undersea volcano is showing signs of impending eruption, scientists say. The volcano, known as Axial Seamount ...

We live in volcano country in the Pacific Northwest and a big anniversary is coming up later this month. Saturday, May 18 is the 45th anniversary of the eruption Mount Saint Helens eruption in 1980.