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

May 18th marks the 45th anniversary of the eruption of Mt. St. Helens and the creation of the USGS Cascades Volcano Observatory. This Saturday they are holding an open house to teach people about ...

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

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

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.

It is a compound stratovolcano, which is known for explosive eruptions, and one of the largest and highest of the Cascade volcanoes at 14,162 feet. Mt. Shasta erupts episodically with 10 or more ...

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

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

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

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 ...