The 45th anniversary of the catastrophic eruption of Mount St. Helens is on May 18. Here's what to know and when the volcano ...

The Mount St. Helens eruption anniversary prompts investigation into the California earthquakes: eruption history, threat ...

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

Scientists and preparedness experts will be at the Science and Learning Center at Coldwater on Sunday to commemorate the 45th ...

scientist-in-charge at the Cascades Volcano Observatory. So the alert earlier this month by the USGS that there has been a flurry of earthquakes around Adams got some attention from volcano watchers.

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

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.

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 ...

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