From Taal Volcano's ash plumes to travel alerts, here's what travelers should understand about volcano risks and safety ...

Around the globe, volcanic giants continue their relentless dance with destruction and creation. These geological time bombs ...

It was the seventh volcano in four weeks for the French researcher and a team of volunteers from his hometown. In a scientific blitzkrieg through the Cascade Range, the 10 skilled mountaineers scaled ...

Scientists have begun a long overdue study of Glacier Peak in Snohomish County – the second most explosive volcano in the Cascades after Mount St. Helens – in what they hope will lead to badly needed ...

VANCOUVER, Wash. — More than 400 earthquakes have been detected beneath Washington's Mount St. Helens in recent months, though there are no signs of an imminent eruption, according to the U.S.

BEND, Ore. (AP) — A bulge near the prominent Cascade Range volcano known as South Sister has nearly stopped growing, scientists say. The uplift was spotted more than a decade ago and led scientists to ...

The Cascade Volcanic Arc stretches from Northern California to southern British Columbia and contains more than a dozen volcanoes. The U.S. Geological Survey classifies 11 of them, including Mount ...

Most of the quakes over a three-month span beginning in mid-July were less than magnitude 1.0 and too small to be felt at the surface, the agency reported last week. Small magnitude earthquakes ...

Above Wenatchee, spires reveal volcanic history in 44-million-year-old rock. High above the city of Wenatchee, Washington, a group of spires made of a unique type of 44-million-year-old rock tell the ...