News

Normal faulting? No change in volcanic hazard? Cascades Volcano Observatory geophysicists describe how they interpret earthquake data using the June 5...

The M 3.9 earthquake occurred at a depth of 2.7 miles below sea level. At this time, seismologists do not believe the earthquake swarm signifies a...

Expansion of the lahar detection system at Mount Rainier will improve the Cascades Volcano Observatory's overall volcano monitoring and lahar...

While most of the Cascade Range volcanoes are located in remote areas, volcanic processes like ashfall and lahars can put large populations at risk...

ANCHORAGE, Alaska — On May 9, 2021, Christina (Tina) Neal became the new director of the U.S. Geological Survey Volcano Science Center, home of the...

May is Volcano Awareness Month in Washington State, providing residents an opportunity to become more familiar with volcanic hazards in their...

The USGS Cascades Volcano Observatory joins the Whidbey Reads program to offer virtual talks about Mount St. Helens' May 18, 1980 eruption, and how...

Burst-like swarms commonly interpreted to be caused by movement of hydrothermal fluids (water).

While the seismicity represents a temporary uptick in activity, Mount Rainier remains at normal, background levels of activity.

A CVO geophysicist discusses how the monitoring stations installed at Mount Hood in 2020 provide insight into the recent Mount Hood earthquake swarm.