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PRJ-2620 | Southern California Earthquake Center (SCEC) Simulation Validation for Southern California Basins using Ground Motion Recordings
PI
Co-PIs
Project TypeSimulation
Related Work
Linked Dataset |
KeywordsEarthquake Simulations, Sedimentary Basins, Simulated Recorded Time Histories, Recording Stations
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Description:

This objective of this project is to validate long-period ground motion site amplification associated with basin effects as provided by three-dimensional numerical simulations. Site effects are evaluated from mixed effects residuals analyses, as described for example in Stewart et al. (2017). The simulations are performed for source conditions (location and earthquake size) for which ample recordings are available. This allows site effects in basins to be evaluated in a consistent manner from recorded data and from simulations. The project team was coordinated under the Ground Motion Simulation Validation (GMSV) group within SCEC and include: Chukwuebuka Nweke (UCLA), Jonathan Stewart (UCLA), Scott Brandenberg (UCLA), Robert Graves (USGS), Christine Goulet (USC). References: Stewart, J.P., Afshari, K., Goulet, C.A., 2017. Non-ergodic site response in seismic hazard analysis, Earthquake Spectra, 33, 1385-1414.

Simulation | Forward Simulation of Earthquakes in Southern California with UCVMs
Cite This Data:
Nweke, C., R. Graves, C. Goulet, S. Brandenberg, J. Stewart (2019). "Forward Simulation of Earthquakes in Southern California with UCVMs", in Southern California Earthquake Center (SCEC) Simulation Validation for Southern California Basins using Ground Motion Recordings. DesignSafe-CI. https://doi.org/10.17603/ds2-762f-sg15

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Simulation TypeGeotechnical
Author(s); ; ; ;
Date Published2019-11-14
DOI10.17603/ds2-762f-sg15
License
 Open Data Commons Attribution
Description:

We have simulated a subset of the earthquake events that are included in the NGA-West2 database (Ancheta et al. 2014) for southern California. Figure 1 shows the event locations and the locations of the “stations” where ground motions are computed. The data produced are three-component velocity histories, which are used to compute a variety of intensity measures including response spectra and duration. The time series have a highest usable frequency of 1.0 Hz. References: Ancheta, T. D., Darragh, R. B., Stewart, J. P., Seyhan, E., Silva, W. J., Chiou, B. S.-J., Wooddell, K. E., Kottke, A. R., Boore, D. M., Kishida, T., and Donahue, J. L. (2014). NGA-West2 database, Earthquake Spectra 30, 989–1005.

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