 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  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  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
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 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 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
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Mt Shasta
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Mono-Inyo Craters
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Soda Lakes