News

It is very hot below the cold waters of Mono Lake, which hosts one of the youngest volcano complexes in the United States.

On March 25th, the USGS California Volcano Observatory celebrated the delivery of a new 'baby' - our brand new electron microprobe is finally up and...

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...