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San Francisco Seismic Hazard Zones
City of San Francisco —
This is a digital Seismic Hazard Zone Map presenting areas where liquefaction and landslides may occur during a strong earthquake. Three types of geological hazards,... -
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Tsunami Inundation Hazard Zone (2021 Update)
City of San Francisco —
California Tsunami Hazard Area Maps and data are prepared to assist cities and counties in identifying their tsunami hazard for tsunami response planning. The maps... -
City
San Andreas M7.8 Earthquake Scenario
City of San Francisco —
This represents projected ground shaking in the City and County of San Francisco during a M7.8 earthquake on the San Andreas fault. The map updated in 2013 by USGS... -
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Soil Liquefaction Hazard Zone
City of San Francisco —
Summary Map delineation of the different types and ages of Quaternary deposits supports evaluation of susceptibility to liquefaction. These areas can be expected to... -
City
Hayward M7.0 Earthquake Scenario
City of San Francisco —
This represents projected ground shaking in the City and County of San Francisco during a M7.8 earthquake on the San Andreas fault. The map updated in 2013 by USGS... -
City
Landslide Susceptibility Hazard Zones
City of San Francisco —
This map shows the relative likelihood of deep landsliding based on regional estimates of rock strength and steepness of slopes. On the most basic level, weak rocks... -
City
Dam or Reservoir Failure Hazard Zone
City of San Francisco —
This map shows the inundation hazard zones from dam and reservoir failure, based on modelling. The analysis was done by SFPUC in partnership with DEM and includes...