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, located in Skamania County, Washington State, is one of the world’s active stratovolcanoes. Positioned 50 miles northeast of Portland and 96 miles south of Seattle, it is part of 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. The 1980 Mount St. Helens eruption began with a steady ...

It was the deadliest volcano eruption in U.S. history, killing 57 people. KING 5 later produced a documentary of the historic event called, "The Mountain Erupts," showing what it was like in the hours ...

Add Yahoo as a preferred source to see more of our stories on Google. May 18 marks the 45th anniversary of the catastrophic eruption of Mount St. Helens in southwestern Washington. The blast in 1980 ...

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