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Testing Waveform Predictions of 3D Velocity Models Against Two Recent Los Angeles Earthquakes

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journal contribution
posted on 15.11.2021, 21:37 by En Jui Lee, Po Chen, Thomas H. Jordan
Nearly half of the national seismic risk is located in Southern California, and about one-fourth is concentrated in Los Angeles County alone (Federal Emergency Management Agency [FEMA], 2000). To assess the seismic hazards that drive this risk, we must forecast the strong ground motions that are likely to be produced by large fault ruptures. The standard probabilistic seismic-hazard model of California calculates shaking intensities according to an ensemble of ground-motion prediction equations (Petersen et al., 2008). These empirical equations have a high aleatory variability, primarily because they do not model much of the ground-motion variance caused by 3D crustal heterogeneities (Strasser and Bommer, 2009).

History

ISO

eng

Language

English

Publisher

University of Wyoming. Libraries

Journal title

Seismological Research Letters

Collection

Faculty Publication - Geology & Geophysics

Department

  • Library Sciences - LIBS