California Volcano Observatory

California Volcano Observatory Type: Research and Development Agencies (Sub-organization) Parent organization: United States Geological Survey (USGS), Volcano Hazards Program Employees: Executive: Scientist-in-Charge Budget: Address: 345 Middlefield Road, Menlo Park, CA 94025, United States Website: https://www.usgs.gov/observatories/calvo Creation Legislation: Wikipedia: California Volcano Observatory

California Volcano Observatory [{"name":"California Volcano Observatory","title":"\u003Ca class=\"mw-selflink selflink\"\u003ECalifornia Volcano Observatory\u003C\/a\u003E","lat":37.45654,"lon":-122.17126,"otherValues":{"HeadquartersAddress":"345 Middlefield Road, Menlo Park, CA 94025, United States"}}] This map created from a Cargo query ()

Mission To advance the scientific understanding of volcanic processes and lessen the harmful impacts of volcanic activity in California and Nevada. CalVO monitors potentially hazardous volcanoes, providing real-time data, eruption forecasts, and hazard assessments to mitigate risks.

Services Volcano monitoring; Seismic and geodetic surveillance; Gas emissions tracking; Public education; Hazard mapping

Regulations

United States Geological Survey California Volcano Observatory
File:CalVO logo.png
Agency Overview
Formed	2012
Headquarters	Menlo Park, California, USA
Agency Executive	Dr. Andrew Calvert, Scientist-in-Charge (USGS)
Website
https://www.usgs.gov/observatories/calvo

The California Volcano Observatory (CalVO) is the volcano observatory that monitors the volcanic and geologic activity of California and Nevada. It is a part of the Volcano Hazards Program of the United States Geological Survey, a scientific agency of the United States government.

Originally, the volcano observatory was known as the Long Valley Observatory which monitored volcanic activity east of the Sierra Nevada in Mono County, California which included Long Valley Caldera, Mammoth Mountain, and the Mono–Inyo Craters.

In 2012, the Long Valley Observatory was integrated into the new California Volcano Observatory based in Menlo Park, California which covers the entire states of California and Nevada, this includes the southern Cascade Range volcanoes in the state of California which were previously under the jurisdiction of the Cascades Volcano Observatory.

Monitored volcanoes

These are the volcanoes monitored by the California Volcano Observatory, in order of highest to lowest risk assessment.

File:Mount Shasta from I-5.jpg

Mt Shasta

According to USGS risk assessment of the volcanoes in CalVO's region, the following volcanoes were ranked "very high threat potential".

• Mount Shasta in far-northern California, north of Redding
• Lassen Volcanic Center in Lassen Volcanic National Park
• Long Valley Caldera in eastern California

File:Mono Craters - Northwest Coulee from CA 120.JPG

Mono-Inyo Craters

These were ranked "high threat potential":

• Mono-Inyo Craters in eastern California
• Clear Lake Volcanic Field north of the San Francisco Bay Area
• Medicine Lake Volcano in far-northern California, northeast of Mt Shasta
• Salton Buttes in far-southern California, at the Salton Sea

File:Kluft-photo-SodaLake-rim-2018-11.jpg

Soda Lakes

These were ranked "moderate threat potential":

• Mono Lake Volcanic Field in eastern California
• Coso Volcanic Field in eastern California
• Soda Lakes in northwestern Nevada near Fallon
• Mammoth Mountain in eastern California
• Ubehebe Craters in Death Valley National Park

One was ranked "Low to Very Low Threat Potential":

• Golden Trout Creek volcanic field in Sequoia National Forest.

Other volcanoes in the region have not been assessed at one of these risk levels that warrant monitoring. Volcanoes which have not erupted during the Holocene were not included. USGS noted that though less probable it is still possible for volcanoes to erupt on longer intervals than that.

File:MonoCraters LongValley.gif

USGS map of the Mono Basin area, showing the Long Valley Caldera (click on to see detail).

See also

• Bishop Tuff
• Hot Creek (Mono County, California)

External links

• Official website

Template:Volcanology-stub Template:US-geology-stub