New report details what's in harm's way near California's volcanoes

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The potential for damaging earthquakes, landslides, floods, tsunamis, and wildfires is widely recognized in California.

The same cannot be said for volcanic hazards, despite the fact that eruptions occur in the state about as frequently as the largest earthquakes on the San Andreas Fault in San Francisco. At least ten volcanic eruptions have taken place in California in the past 1,000 years—most recent is the Lassen Peak eruption of 1914 to 1917 in Northern California—and future volcanic eruptions are inevitable. Based on the record of volcanism over the last few millennia, the likelihood of another eruption occurring in California in the next 30 years is about 16 percent.

A new 2019 report, "California's Exposure to Volcanic Hazards", prepared in collaboration with the State of California Governor's Office of Emergency Services (CalOES) and the California Geological Survey (CGS), provides a broad perspective on the State's exposure to volcanic hazards by integrating volcanic hazard information with geospatial data on at-risk populations, infrastructure, and resources. The information in this report is intended to prompt follow-up site and sector specific vulnerability analysis and improved hazard mitigation, disaster planning, and response protocols.

Read the report here:

Infographic about the 2019 report "California's Exposure to Volcanic Hazards"

Infographic about the 2019 report "California's Exposure to Volcanic Hazards"

(Public domain.)

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