The 1980 Mount St. Helens eruption remains the deadliest in U.S. history, fundamentally changing how scientists monitor volcanic activity.

Washington state may not have to worry about hurricanes, but it is volcano country. The United States has 161 active volcanoes – all in the western U.S. – but only 18 are classified as a "very high ...

With the recent 46th anniversary of the initial eruption of Mount St. Helens on May 18, 1980, many recalled where they were ...

USGS scientists are monitoring elevated seismic activity and ground deformation signals at Mount St. Helens this week marking ...

Anglers and boaters flock to this lesser-known gem near the Cascade Mountains, which offers prime water activities with views ...

New research offers clues as to why Mount St. Helens is one of the most explosive volcanoes in the Cascade range and why it stands apart from the chain of other Cascade volcanoes. Scientists from the ...

Mount St. Helens looked like it might be erupting again. Commercial pilots flying in the area Tuesday reported clouds of fine volcanic ash rising into the air above the collapsed dome of the Cascades’ ...

Forty-five years ago on May 18, 1980, Mount St. Helens in the state of Washington violently erupted. Here’s a look at volcanoes, then and now. Today in History: May 7, Nazi Germany surrenders Hey, San ...

On May 18, 1980, Mount St. Helens erupted and claimed the lives of 57 people. Here is everything you need to know 46 years ...

SEATTLE (AP) — Thirty-five years ago, Mount St. Helens in southwest Washington state erupted, killing 57 people, blasting more than 1,300 feet off the top and raining volcanic ash for miles around.

Government scientists confirmed Mount St. Helens is not erupting despite recent concerns. Commercial pilots reported seeing what they believed to be ash near the volcano. Strong winds are lifting old ...