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

Explore how the landscape of southwest Washington still bears the scars of the Mount St. Helens eruption 45 years later, ...

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

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

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 Mount St. Helens eruption anniversary prompts investigation into the California earthquakes: eruption history, threat ...

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

You know that very special rock you couldn’t resist picking up and taking home? The one with the uncanny shape, the ...

The May 18, 1980, eruption of Mount St. Helens in southern Washington claimed 57 lives and blasted the terrain of old-growth ...

Five springs in California converge on this state park, making it a paradise for those who want to paddle through its calm ...

For many people who lived through the 1980 eruption of Mount Saint Helens, it is the biggest news story of their lifetimes.

Courtesy of ROV Jason/WHOI Axial is more geologically active than any of the towering Cascade volcanoes — including Mount St. Helens, Mount Hood and Mount Rainier — and it has erupted three ...