Climate-Adjusted Hazard Data · Model Version 1.0
California experiences significant seismic activity along the San Andreas Fault system and numerous subsidiary faults including the Hayward, Calaveras, and San Jacinto faults. The state has the highest seismic hazard in the contiguous United States according to the USGS National Seismic Hazard Model (NSHM 2023). FEMA records show California accounts for the majority of US earthquake-related federal disaster declarations.
CivilSense computes a Climate-Adjusted Hazard Score (0–10) for earthquake hazard at any US address. The score is composed of weighted sub-components derived from federal data sources and peer-reviewed research. All score components are transparent and returned in API responses.
These are hazard scores — physical intensity likelihood only. They do not include property exposure or vulnerability data. We never call a hazard score a risk score. See the full methodology for scoring details.
Enter any California address to see location-specific earthquake hazard scoring with full methodology transparency.
Open Live Map — CaliforniaClimate-Adjusted Hazard Score — derived from peer-reviewed sources listed above. Property exposure data not included. Not a substitute for professional actuarial assessment. For situational awareness only — not for emergency response.