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Abstract
In this paper we summarize data, methods, and models developed for a probabilistic assessment of fault displacement hazards across the U.S. We compare earthquake displacement data and empirical fault displacement models that have been developed for normal faults, strike-slip faults, and reverse faults. In general, the data and models are similar near the center of the fault for the three faulting types, but differ near the ends with the strike-slip data being lower than the reverse and normal faulting data. We also compare these U.S. models with data and equations developed using Japanese fault displacement data. The Japan model is also similar to the U.S. models near the center of the fault but decays less rapidly near the ends of the fault. In addition, we discuss impacts of models developed to analyze off-fault strain on secondary faults, multi-strand displacement hazard, and various mapping quality factors. For our study, we show example fault displacements for a M 7 fault with recurrence of 800 and 1600 years. We conclude that a deterministic assessment of fault displacements is often higher than the probabilistic displacements for less active faults with earthquake rupture recurrence that is longer than the hazard return period of interest. Fault displacement hazard is applied in engineering applications for buildings, bridges, pipelines, and nuclear facilities. We present three applications for fault displacement hazard at nuclear facilities and important structures.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Fault displacement hazard for strike-slip faults |
| Volume | 3 |
| Year Published | 2018 |
| Language | English |
| Publisher | Earthquake Engineering Research Institute |
| Contributing office(s) | Earthquake Science Center, Geologic Hazards Science Center |
| Description | 12 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Conference publication |
| Larger Work Title | Earthquake Engineering. National Conference. 11TH 2018. (11NCEE) (12 Vols) Integrating Science, Engineering, and Policy |
| First page | 1794 |
| Last page | 1805 |
| Conference Title | Eleventh U.S. National Conference on Earthquake Engineering |
| Conference Location | Los Angeles, CA |
| Conference Date | June 25-29, 2018 |
| Google Analytic Metrics | Metrics page |