News

Some sediment from the debris flow was visible 8 miles downstream at the Highway 706 crossing.

Twenty middle school girls from Washington and Oregon are participating in “GeoGirls,” an outdoor program jointly organized by the U.S. Geological...

May is Volcano Preparedness Month in Washington state, providing residents an opportunity to become more familiar with volcanic risk in their...

May 18th marks the 35th anniversary of the eruption of Mount St. Helens and the onset of volcanic activity from 1980 to 1986.  In commemoration, the U...

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...