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

A stratovolcano in Europe erupted on June 2 and sent tourists running for safety. What is the status of Washington's most ...

The U.S. Geological Survey’s Cascades Volcano Observatory in Vancouver will host an open house 10 a.m. to 4 p.m. Saturday. Admission is free. Volcano scientists will be on hand to describe their ...

That same year, the USGS Cascades Volcano Observatory was established in Vancouver, Washington. The Cascades Volcano Observatory is now the largest of USGS’s five offices, with around 80 ...

The images refresh every five minutes and are from a United States Geological Survey Cascades Volcano Observatory research camera, according to the United States Geological Survey’s website.

"That's when it becomes this multi-agency response because now you have to prevent people from getting too close," Liz Westby, a geologist with the USGS Cascades Volcano Observatory, told Business ...

Mount Etna produced a spectacularly explosive eruption Monday, sending a ripple of reddish clouds down from the southeast ...

As pulses of magma intrude into the pancake-shaped structures, known as sills, a cascade of earthquakes ... in seismic data from the Hawaii Volcano Observatory's network of sensors, picking ...