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As a part of the U.S. Geological Survey's Volcano Hazards Program, the California Volcano Observatory aims to advance scientific understanding of volcanic processes and lessen the harmful impacts of volcanic activity in the volcanically active areas of California and Nevada. 


News

Date published: September 18, 2019

USGS Hazard Science – Understanding the Risks is Key to Preparedness

 Learn About USGS Hazards Science and More About National Preparedness Month:  The very nature of natural hazards means that they have the potential to impact a majority of Americans every year.  USGS science provides part of the foundation for emergency preparedness whenever and wherever disaster strikes.

Date published: August 27, 2019

New names at Newberry drawn from CalVO geologist's mapping

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 were proposed by Julie Donnelly-Nolan, a Research Geologist with the Volcano Science Center of the USGS in Menlo Park, CA.

Date published: July 10, 2019

Earthquake swarm south of Coso Volcanic Field continues with declining intensity. We continue to monitor

The seismic activity that started on the evening of July 5 at the southern margin of Coso Volcanic Field in Inyo County, California continues at a rate of about 600 M1.0 or greater earthquakes per day.

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