Site-response maps for the Los Angeles region based on earthquake ground motions
Open-File Report
96-723
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Abstract
Ground-motion records from aftershocks of the 1994 Northridge earthquake and main-shock records from the 1971 San Fernando, 1987 Whittier Narrows, 1991 Sierra Madre, and 1994 Northridge earthquakes are used to estimate site response in the urban Los Angeles, California, area. Two frequency bands are considered, 0.5-1.5 Hz and 2.0-6.0 Hz. Instrument characteristics prevented going to lower frequencies, and frequencies above 6.0 Hz are less important to the building inventory. Site response determined at the instrumented locations is associated with the surficial geology and contoured to produce a continuous spatial estimation of site response. The maps in this report are preliminary and will evolve as more data become available and more analysis is done.
Suggested Citation
Hartzell, S., Harmsen, S., Frankel, A.D., Carver, D.L., Cranswick, E., Meremonte, M.E., Michael, J.A., 1996, Site-response maps for the Los Angeles region based on earthquake ground motions: U.S. Geological Survey Open-File Report 96-723, 14 p., https://doi.org/10.3133/ofr96723.
ISSN: 2331-1258 (online)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Site-response maps for the Los Angeles region based on earthquake ground motions |
| Series title | Open-File Report |
| Series number | 96-723 |
| DOI | 10.3133/ofr96723 |
| Year Published | 1996 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Contributing office(s) | Denver Federal Center, Earthquake Science Center, Geologic Hazards Science Center |
| Description | 14 p. |
| Country | United States |
| State | California |
| City | Los Angeles |