To the east of Mount Rainier are the remains of a once-mighty Cascade volcano. In the hills outside of Naches, Washington, at the foot of Mount Rainier are the remains of a much older volcano. Join ...

Oct. 3—September saw an increase in earthquake activity at Mount Adams, according to the U.S. Geological Survey (USGS) Cascades Volcano Observatory and the Pacific Northwest Seismic Network. A total ...

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, ...

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

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 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 Adams, about 70 miles north of Portland, is one of the sleepiest active volcanoes in the Cascade Range. A small earthquake every few years is typical. But it’s shaken up expectations recently — ...

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 ...

Six low-intensity earthquakes rumbled beneath Mount Adams during September, according to the U.S. Geological Survey Cascades Volcano Observatory. That’s an unusual amount of seismic activity at the 12 ...

A "swarm" of earthquakes began at Mount Rainier in Washington in the early morning hours on Tuesday with hundreds of quakes detected so far, making it the largest such event at the volcano since 2009.

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 ...

SEATTLE — Mount St. Helens stood silent for over a century in Washington’s Cascade Range, but that all changed 45 years ago when the sleeping giant woke up and erupted into Pacific Northwest history.