Welcome to the California Department of Conservation
CGS / Regional Geologic Hazards and Mapping Program / Pshamap

California Geological Survey - Probablistic Seismic Hazards Assessment 

Interactive Ground Motion Map - Centered on 122° W (Longitude); 38° N (Latitude)

Peak Ground Acceleration - 10% of being exceeded in 50 years

2 degree map

To obtain seismic shaking hazard values for a point,
click anywhere on the map above or enter geographic coordinates below:

Longitude: Latitude:
Please enter coordinates as Decimal Degrees
Example:   Longitude -122.0017   Latitude 36.9894