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Hazards

Hazards and hazard assessments.

California has Active and Hazardous Volcanoes

Map highlighting the locations of high-threat volcanoes in California. Volcanoes are marked with triangles.

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

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Volcano Hazards Assessments

image related to volcanoes. See description

Geologists create hazard maps to convey the types of hazards that may occur during future eruptions and to identify the areas of potential impact. Specific hazards to people and property depend on eruption style, the volume of lava erupted, the location of the eruptive vent, the eruption duration, and local hydrologic conditions. 

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California's Exposure to Volcanic Hazards Geo-Narrative

volcano exposure storymap

A geonarrative summary that provides a broad perspective on California’s exposure to volcanic hazards. By integrating volcanic hazard information with geospatial data on populations, infrastructure, and resources, the results provide estimates of impacts to people and our environment if an eruption were to occur.

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Image Collage of Landsat, pollinator, and volcanologist

Volcano Hazards Assessments

Geologists create hazard maps to convey the types of hazards that may occur during future eruptions and to identify the areas of potential impact. Specific hazards to people and property depend on eruption style, the volume of lava erupted, the location of the eruptive vent, the eruption duration, and local hydrologic conditions. As geologic research progresses, these maps are updated and created.
By
California Volcano Observatory
link

Volcano Hazards Assessments

Geologists create hazard maps to convey the types of hazards that may occur during future eruptions and to identify the areas of potential impact. Specific hazards to people and property depend on eruption style, the volume of lava erupted, the location of the eruptive vent, the eruption duration, and local hydrologic conditions. As geologic research progresses, these maps are updated and created.
Learn More
link
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
link

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
link
California Volcano Observatory emblem

California's Exposure to Volcanic Hazards Geo-Narrative

In collaboration with the California Governor’s Office of Emergency Services and the California Geological Survey, a report was published in 2019 which provides a broad perspective on California’s exposure to volcanic hazards. A geo-narrative website is an interactive summary of the report.
By
California Volcano Observatory
link

California's Exposure to Volcanic Hazards Geo-Narrative

In collaboration with the California Governor’s Office of Emergency Services and the California Geological Survey, a report was published in 2019 which provides a broad perspective on California’s exposure to volcanic hazards. A geo-narrative website is an interactive summary of the report.
Learn More