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Development of final a-fault rupture models for WGCEP/ NSHMP Earthquake Rate Model 2

Edward H. Field·Ray J. Weldon·Thomas Parsons·Chris J. Wills·Timothy E. Dawson·Ross S. Stein·Mark D. Petersen
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Abstract

This appendix discusses how we compute the magnitude and rate of earthquake ruptures for the seven Type-A faults (Elsinore, Garlock, San Jacinto, S. San Andreas, N. San Andreas, Hayward-Rodgers Creek, and Calaveras) in the WGCEP/NSHMP Earthquake Rate Model 2 (referred to as ERM 2. hereafter). By definition, Type-A faults are those that have relatively abundant paleoseismic information (e.g., mean recurrence-interval estimates). The first section below discusses segmentation-based models, where ruptures are assumed be confined to one or more identifiable segments. The second section discusses an un-segmented-model option, the third section discusses results and implications, and we end with a discussion of possible future improvements. General background information can be found in the main report.

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Edward H. Field, Ray J. Weldon, Thomas Parsons, Chris J. Wills, Timothy E. Dawson, Ross S. Stein, Mark D. Petersen. 2008. Development of final a-fault rupture models for WGCEP/ NSHMP Earthquake Rate Model 2. https://doi.org/10.3133/ofr20071437g

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