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Seismic hazard mapping of California considering site effects

Earthquake Spectra

By:
, , and
DOI: 10.1193/1.3478312

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Abstract

In this paper, we have combined the U.S. Geological Survey's National Seismic Hazard Maps model with the California geologic map showing 17 generalized geologic units that can be defined by their VS30. We regrouped these units into seven VS30 values and calculated a probabilistic seismic hazard map for the entire state for each VS30 value. By merging seismic hazard maps based on the seven different V S30 values, a suite of seismic hazard maps was computed for 0.2 and 1.0 s spectral ordinates at 2% probability of exceedance (PE) in 50 years. The improved hazards maps explicitly incorporate the site effects and their spatial variability on ground motion estimates. The spectral acceleration (SA) at 1.0 s map of seismic shaking potential for California has now been published as California Geological Survey Map Sheet 48.

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Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Seismic hazard mapping of California considering site effects
Series title:
Earthquake Spectra
DOI:
10.1193/1.3478312
Volume
26
Issue:
4
Year Published:
2010
Language:
English
Publisher:
EERI
Publisher location:
Oakland, CA
Contributing office(s):
Earthquake Science Center
Description:
17 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Earthquake Spectra
First page:
1039
Last page:
1055
Country:
United States
State:
California