Explore 20 vintage images from the Mount St. Helens eruption, capturing destruction, ash clouds, and historic moments from ...

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

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.

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 ...

ST HELENS, Wash. — It may look a bit like it, but Mount St. Helens is not erupting Tuesday morning. The ash you can see blowing around the volcano is actually remnants of the infamous 1980 eruption.

Forty-five years ago Sunday, the Pacific Northwest was reshaped in ways that still reverberate nearly half a century later. Why it matters: For centuries, people lived in the shadow of Mount St.

Peggy Short-Nottage and her husband joined sightseers rushing to Mount St. Helens when volcanic activity escalated in the spring of 1980. Instead of hopping in a car and making the drive to ...

It was a quiet Sunday morning, at 8:32 a.m., 38 years ago when Mount St. Helens blew its top, sending tons of ash into the sky. The volcano had been quiet since the 1850s, but in 1980, geologists were ...