The 1980 eruption cycle made Mount St. Helens one of the most famous volcanoes in the Cascades. But it is far from the only volcano in the range.

CWU Geological Sciences Professor Walter Szeliga received some well-deserved attention for his unique approach to detecting ...

Unlike old soldiers, old volcanoes seemingly don't even fade away, much less die, with researchers discovering magma chambers under cones previously classed as dormant after thousands of years of ...

A recent study has revealed that dormant volcanoes in the Cascade Range still contain significant amounts of magma beneath their surface, challenging long-standing assumptions about volcanic ...

Here's why Mount St. Helens is located so far away from other Cascade volcanoes and why it's one of the most active in the chain.

Massive volcanoes dot the Cascade Range from BC into NorCal, but what about the space in between? Volcanoes in those places ...

Long-quiet volcanoes in the Cascades region of the Pacific Northwest are still underpinned by large reservoirs of magma, new research finds. The findings have implications for monitoring volcanoes ...

Standing on the lip of Sherman Crater on Washington state's Mount Baker, Francois Le Guern breathed deeply, savoring the sulfurous vapors rising from below.

A volcano hadn't erupted in the contiguous United States (U.S. excluding Alaska and Hawaii) since California's Lassen Peak in early 20th Century. And modern science had yet to witness an eruption ...

Small earthquakes have rocked the active volcano Mt. Rainier in the Cascade Mountain Range this month, sending shockwaves around the 14,410-foot mountain. The U ...

Scientists at the rim of the volcano smelled hydrogen sulfide, similar to rotten eggs, said Jeff Wynn, chief scientist for volcano hazards at the U.S. Geological Survey's Cascade Volcano Observatory.