The following maps are not interactive. If you have a high-speed internet connection (such as a DSL or cable modem) you may want to access these maps using our interactive (GIS) viewing software. This software allows you to type in an address or zip code, as well as to zoom into the maps.
Instructions for viewing an earthquake shaking hazard map
Earthquakes are caused by rupturing of a fault or fault segment. To view an earthquake intensity map of your area, you need to both select an area (city) and select a fault as the source of the earthquake. Note: only maps of the region, not individual cities, are available for the two thrust faults at this time.
STEP 1 – Choose a city from the first window.
STEP 2 – Choose a fault source for the earthquake scenario using the map by clicking on a colored fault segment on the map or on the button next to the fault name. You should find that the most interesting scenarios are the ones involving multiple fault segments on the San Andreas and Hayward faults, as well as the faults near you. You may also want to review our list of Frequently Asked Questions (FAQs) that includes information on the probability of various earthquakes.
STEP 3 – Click on the View Map button at the bottom of this page.