It was small by volcanic standards, but massive by human ones: on this day in 1980, Mount St. Helens erupted in what the ...

For a moment, it seemed like a blast from the past: a plume over Mount St. Helens on Tuesday looked like the volcano might be erupting again. But fortunately, this was not an eruption — just a ...

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

An experienced climber was found dead on Saturday inside the crater of Mount St. Helens, a volcano in Washington state that draws hikers, skiers and snowboarders year-round. Officials say he was ...

One of the most dangerous volcanoes in the U.S. appears to be rumbling to life—but luckily, an eruption does not appear to be imminent. Mount St Helens has seen an uptick in earthquakes since mid-July ...

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 ...

The most destructive volcanic eruption in United States history happened less than half a century ago in Washington state. On May 18, 1980, the north side of Mount St. Helens, in southwestern ...

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 ...