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Seismic Landslide Hazard for the City of Berkeley, California

Miscellaneous Field Studies Map 2378

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Abstract

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. Purpose: The map is intended as a tool for regional planning. Any site-specific planning or analysis should be undertaken with the assistance of a qualified geotechnical engineer. This hazard map should not be used as a substitute to the State of California Seismic Hazard Zones map for the same area. (See California Department of Conservation, Division of Mines and Geology, 1999). As previously noted for maps of this type by Wieczorek and others (1985), this map should not be used as a basis to determine the absolute risk from seismically triggered landslides at any locality, as the sole justification for zoning or rezoning any parcel, for detailed design of any lifeline, for site-specific hazard-reduction planning, or for setting or modifying insurance rates.

Geospatial Extents

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Seismic Landslide Hazard for the City of Berkeley, California
Series title:
Miscellaneous Field Studies Map
Series number:
2378
Edition:
-
Year Published:
2001
Language:
ENGLISH
Publisher:
Geological Survey (U.S.)
Contributing office(s):
Western Earthquake Hazards
Description:
Map: 22 x 30 inches; Pamphlet: 6 p.; Digital Database; ReadMe; Metadata
Scale:
24000
Additional Online Files(Y/N):
Y