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Lava Flows

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A photo taken from an airplane of a large, elongated lake surrounded by long mountain ridges and vineyards

Western California Volcano Research Maps Geonarrative

Explore the geology, tectonics, and hazards of Western California's volcanic fields in a new interactive geonarrative website.
By
Volcano Hazards Program, California Volcano Observatory
Western California Volcano Research Maps Geonarrative

Western California Volcano Research Maps Geonarrative

Explore the geology, tectonics, and hazards of Western California's volcanic fields in a new interactive geonarrative website.
Learn More
Image Collage of Landsat, pollinator, and volcanologist

California has active and hazardous volcanoes

Threat rankings issued by the U.S. Geological Survey (USGS) for California identify fifteen volcanic centers of Low-, Moderate-, High-, or Very High Threat.
By
California Volcano Observatory
California has active and hazardous volcanoes

California has active and hazardous volcanoes

Threat rankings issued by the U.S. Geological Survey (USGS) for California identify fifteen volcanic centers of Low-, Moderate-, High-, or Very High Threat.
Learn More
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