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

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 ...

NISAR is the first satellite equipped with radar instruments operating at two different wavelengths.

Add Yahoo as a preferred source to see more of our stories on Google. Wind gusts that stirred up ash around Mount St. Helens in Washington have people asking: Is the sleeping giant awake? The National ...

Strong winds across parts of Washington state have kicked up volcanic ash deposited during the 1980 eruption of Mount St. Helens, creating hazy conditions and reducing air quality. The phenomenon, ...

Editor's note: This story was originally published in May 2018. Peggy Short-Nottage and her husband joined sightseers rushing to Mount St. Helens when volcanic activity escalated in the spring of 1980 ...

VANCOUVER, Wash. (KPTV/Gray News) - Mount St. Helens, which notoriously erupted in 1980, has been showing signs of increased seismic activity lately, according to the U.S. Geological Survey. It’s ...

Mount St. Helens has been stirring as of late, showing increased signs of seismic activity over the last few months, according to the U.S. Geological Survey. The volcano has experienced 368 ...

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 ...

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 ...