News

Could what happened at Nevado del Ruiz in 1985 happen in the Pacific Northwest? And if it did, are we prepared?

Such sequences are often seen during the winter months at Mount Rainier, and researchers have shown that their occurrence correlates strongly with...

In the early morning hours of September 23, 2004, a swarm of small-magnitude earthquakes about half a mile below Earth’s surface marked the...

In the early morning hours of September 23, 2004, a swarm of small-magnitude earthquakes about half a mile below Earth’s surface marked the...

This summer, a new monitoring station was installed on the lava dome in the crater of Mount St. Helens to "sniff" volcanic gases.

Slowly emerging patterns of behavior at Mount St. Helens are giving scientists at the USGS-Cascades Volcano Observatory and the Pacific Northwest...

Aided by record-setting subfreezing temperatures, the popping and cracking of ice in the caldera's lakes is picked up by local seismic stations.

On September 28, after about 10 hours of steady rain, an acoustic flow monitor (AFM) on the South Fork Toutle River recorded the passage of small...

These earthquakes are the first to be located on the SE flank of Newberry since the Cascades Volcano Observatory added eight stations to the Newberry...

Three small earthquakes are the first to be recorded after installation of a small seismic and geodetic network at Crater Lake in 2011.