The 1980 Mount St. Helens eruption remains the deadliest in U.S. history, fundamentally changing how scientists monitor volcanic activity.

Mount St. Helens experienced a cataclysmic eruption on May 18, 1980. What once was referred to as the “Fujiyama of America” had transformed at 8:32 a.m. in Skamania County, Washington. A 5.1 magnitude ...

Forty-six years ago, Mount St. Helens erupted, killing 57 people in the aftermath. Mount St. Helens, which is located in Washington, about 55 miles northeast of Portland, Oregon, and 95 miles south of ...

46 years ago today, Mount St. Helens erupted. The massive eruption sent ash and steam skyward as the north face of the mountain collapsed.

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

With the recent 46th anniversary of the initial eruption of Mount St. Helens on May 18, 1980, many recalled where they were ...

USGS scientists are monitoring elevated seismic activity and ground deformation signals at Mount St. Helens this week marking ...

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 ...

Nearly three years after a landslide wiped out the main road to the most iconic viewpoint at Mount St. Helens National Volcanic Monument, construction on a new bridge is set to begin next week — ...

Forty-six years ago today, Mount St. Helens erupted and unleashed a catastrophic landslide and mudflows that led to the deaths of 57 people. Forty-six years ago today, Mount St. Helens erupted and ...