Seismic hazard mapping of California considering site effects
Earthquake Spectra
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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.
Suggested Citation
Kalkan, E., Wills, C., and Branum, D., 2010, Seismic hazard mapping of California considering site effects: Earthquake Spectra, v. 26, no. 4, p. 1039-1055, https://doi.org/10.1193/1.3478312.
Study Area
| 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 |
| Publication Date | November 01, 2010 |
| 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 |