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USGS scientists are monitoring elevated seismic activity and ground deformation signals at Mount St. Helens this week marking the 46th anniversary of the catastrophic 1980 eruption. Scientists have ...

Forty-six years ago today, Mount St. Helens erupted and unleashed a catastrophic landslide and mudflows that led to the deaths of 57 people. It happened at 3:47 p.m. on Thursday, March 20th, 1980, and ...

SKAMANIA COUNTY, Wash. — Forty-six years ago today, Mount St. Helens unleashed one of the most devastating volcanic eruptions in United States history, transforming the Pacific Northwest landscape in ...

On May 18, 1980, 30-year-old scientist David Johnston was in an observation post with the U.S. Geological survey monitoring Mount St. Helens. At 8:32 a.m., a 5.1 magnitude earthquake struck beneath ...

PORTLAND, Ore. — Monday marks 46 years since the catastrophic eruption of Mount St. Helens, one of the most destructive volcanic events in U.S. history. On May 18, 1980, the Washington volcano erupted ...

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.

BEND, Ore. (KTVZ) -- May 18th marks the 46th anniversary of the devastating Mount St. Helens eruption in Washington State. The powerful volcanic event killed 57 people and devastated some 210 miles of ...