On May 18, 1980, the United States experienced the deadliest and most destructive volcanic eruption in its history.

Sunday marks 45 years since Mount St. Helens erupted in Washington state. The deadly eruption happened shortly after 8:30 a.m ...

Mount St. Helens erupted, killing dozens and forever changing how the US monitors earthquakes. The volcano is still active ...

According to the USGS, Mount St. Helens is the most active volcano in the lower 48 states and the most likely in the Cascades to erupt again.

The 1980 Mount St. Helens eruption began with a steady series of earthquakes in March. By April it began spewing smoke, ...

Retired engineers revisit Mount St. Helens, reflecting on recovery efforts post-eruption for its 45th anniversary.

The 45th anniversary of the catastrophic eruption of Mount St. Helens is on May 18. Here's what to know and when the volcano ...

Stunning, historic front-page coverage from The Oregonian reporters Les Zaitz and Steve Jenning reports the confusion and ...

It's been 45 years since the Mount St. Helens eruption in Washington state. British Columbians who were young adults at the ...

Mount St. Helens in Washington State began erupting with a series of steam-driven blasts. These intensified over weeks, leading to a massive eruption on May 18 at 8:32 a.m. Rated a 5 on the Volcanic ...

KING 5's Rich Marriott was working for the Northwest Avalanche Center when Mount St. Helens erupted. He was part of the team ...