Seismic Landslide Hazard for the City of Berkeley, California

This map describes the possible hazard from earthquake-induced
landslides for the city of Berkeley, CA. The hazard depicted by
this map was modeled for a scenario corresponding to an M=7.1
earthquake on the Hayward, CA fault. This scenario magnitude is
associated with complete rupture of the northern and southern
segments of the Hayward fault, an event that has an estimated
return period of about 500 years. The modeled hazard also
corresponds to completely saturated ground-water conditions
resulting from an extreme storm event or series of storm events.
This combination of earthquake and ground-water scenarios
represents a particularly severe state of hazard for earthquake-
induced landslides. For dry ground-water conditions, overall
hazard will be less, while relative patterns of hazard are likely
to change.