News

The first step in mitigating volcanic risk and building community resilience to volcanic hazards is identifying what and who is in harm’s way.

Disasters and emergencies can happen at any time, often without warning. Natural hazards threaten thousands of lives and cause billions of dollars in...

If you've noticed any changes to the earthquake counts released in CalVO's weekly updates, don't worry - some behind-the-scenes improvements to our...

A group of scientists at CalVO have recently begun a new investigation of the Clear Lake Volcanic Field (CLVF), a seismically and geothermally active...

Dr. Steve Ingebritsen retires this week from the USGS after a stellar career spanning four decades.

California Volcano Observatory monitoring activities continue as normal; scientists and staff following precautionary safety measures.

At 10:36:54 PST (18:36:54 UTC on) 1 February, a M4.4 earthquake occurred under McGee Mountain near Toms Place, CA, at a depth of 10 km.

After 36 years with the USGS and 7 years as the Scientist-in-Charge of CalVO, Dr. Margaret (Maggie) Mangan will be stepping down from leading the...

 Learn About USGS Hazards Science and More About National Preparedness Month:  The very nature of natural hazards means that they have the potential...

In June 2019, the U.S. Board on Geographic Names approved twenty-five new formal geographic names at Newberry Volcano in central Oregon. The names...