It started as a go-for-broke experiment, but it wound up saving an ecosystem.

It’s been 45 years since an eruption occurred on the U.S. mainland. The May 18, 1980, eruption of Mount St. Helens in southern Washington claimed 57 lives and blasted the terrain of old-growth spruce ...

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 ...

When volcanoes erupt and ecosystems are under threat, most people wouldn't think of calling in a garden pest for help, but ...

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 ...

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. The 1980 Mount St. Helens eruption began with a steady ...

Add Yahoo as a preferred source to see more of our stories on Google. Jan. 3—Registration is still open for the Mount St. Helens Institute's 12-week Volcano Naturalist Program, which runs Feb. 4 to ...

Add Yahoo as a preferred source to see more of our stories on Google. When Mount St. Helens erupted on May 18, 1980, it caused enormous devastation. The eruption triggered mudslides, an explosion, and ...

Sunday marks 45 years since Mount St. Helens erupted in Washington state. The deadly eruption happened shortly after 8:30 a.m. on May 18, 1980, following months of small explosions and earthquakes.