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

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

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 ...