At the risk of this blog becoming all volcanoes, all the time, I bring you... more volcanoes! Two of my favorite geobloggers wrote mustn't-miss posts on some of our Cascades volcanoes. They showcase ...

New seismic imaging shows magma lingering beneath quiet Cascade volcanoes, shaping how scientists monitor and plan for eruptions.

Add Yahoo as a preferred source to see more of our stories on Google. The Morning Glory pool in Yellowstone national park. Yellowstone is underlain by two magma bodies. Michael Juhran/dpa Unlike old ...

Mount Rainier - one of many volcanoes found in the Cascade Range - is reflecting in the Reflection Lakes in Mount Rainier National Park in Washington State, USA. A seismic survey challenges the ...

Mount Shasta, a steep-sided Cascade Range stratovolcano in Northern California, looms above Little Glass Mountain, a thick obsidian flow erupted from the Medicine Lake shield volcano about 1,000 years ...

Mount Adams, seen here from Mount Saint Helens is the largest volcano by volume in the Cascade Range. (John Pallister/USGS) Six low-intensity earthquakes rumbled beneath Mount Adams during September, ...

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 ...

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 ...

Researchers are setting up extra volcanic monitoring stations in the Cascades this month after a flurry of earthquakes. Should you panic? No. According to Wes Thelen, a research seismologist with the ...

The Portland Winter Light Festival started Friday, with over 200 light-based art installations and live events at 100+ locations across the city. 46-foot fin whale washes ashore near Sunset Beach in ...

The Cascades Volcano Observatory, part of the federal monitoring network, maintains seismometers, GPS stations and gas samplers on and around the major peaks, feeding data into models that track how ...