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

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 ...

"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 ...

Despite the passage of time, the scars of the 1980 eruption remain starkly visible, said Weston Thelen, a research seismologist at the Cascades Volcano Observatory. “You go up there and it ...

The USGS California Volcano Observatory (CalVO ... Mt. Shasta is in the Cascade Range in Northern California, about 40 miles south of the Oregon-California border. It is a compound stratovolcano ...

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 ...

Representatives from the Washington Emergency Management Division, USGS Cascades Volcano Observatory, the Mount St. Helens Institute, National Volcanic Monument Rangers and more are set to speak ...