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This map view of California shows the distribution of active California faults as defined in the Uniform California Earthquake Rupture Forecast (UCERF) Version 3. UCERF3 integrates recent geological and seismological observational data into a computational earthquake forecast model of earthquake locations and rates in California. The fault colors show UCERF3 forecast of the rate at which each fault section will participate in an earthquake rupture with magnitude greater than 6.5. Less likely sections are shown in blue and more likely sections in red. The light blue boundary identifies the UCERF model region, which comprises California and a buffer zone. The blue boxes highlight the San Francisco Bay Area and Los Angeles Regions. UCERF3 was developed by a collaboration including Southern California Earthquake Center, the USGS, the California Geological Survey, and the California Earthquake Authority.