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 ...

More than 40 years after the Mount St. Helens eruption buried a Washington river valley under volcanic sediment, 58 relocated ...

Add Yahoo as a preferred source to see more of our stories on Google. Today marks 46 years since Mount St. Helens erupted, claiming 57 lives. The U.S. Geological Survey (USGS) remembered those lost, ...

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 ...

In May 1980, Mount St. Helens in Washington state erupted catastrophically. It resulted in one of the largest natural disasters in American history, claiming 57 lives and even darkening the sun. It ...

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Inside the Cascades Volcano Observatory in Vancouver, Wash., SALI the robot weighs small crucibles holding sediment. SALI stands for Sediment Analysis Laboratory Instrument. “This is the modern legacy ...

SKAMANIA COUNTY, Wash. — When the first earthquakes occurred on Mount St. Helens on March 16, 1980, I was working as a meteorologist for the U.S. Forest Service at the Northwest Avalanche Center.

The May 18, 1980, eruption of Mount St. Helens remains the deadliest and most destructive volcanic event in U.S. history, claiming 57 lives and flattening 230 square miles of forest. The blast sent a ...

Mount St. Helens environment recovering 45 years after eruption With most plants and animals now back, scientists are shifting their observation focus. When Mount St. Helens erupted in 1980, hundreds ...

On May 18, 1980, Don Swanson placed a frenzied call to his wife to let her know that he was OK. "That's nice," she said, unconcerned. She had no idea her geologist husband had spent the morning in a ...

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.