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 ...

Quite a few volcanic eruptions have made it into the history books, though not all are made equal. After all, the effects of ...

Forty-four years after Mount St. Helens killed 57 people in the most destructive volcanic event in U.S. history, multiple ...

When Mount St. Helens erupted on May 18, 1980, the landscape changed in an instant—the geologic version of an instant, anyway. It was the deadliest eruption the United States had ever seen, leveling ...

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 ...

(CNN) — 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 ...

The Washington state Department of Fish and Wildlife (WDFW), in coordination with the Cowlitz Indian Tribe, U.S. Forest Service and conservation partners have reintroduced spring Chinook ...

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 ...

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.

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 ...