Abstract
Taiyuan is a city in Shanxi Province, China, and possesses serious seismic hazard. In this study, we constructed a time-dependent seismic hazard model for Taiyuan and the surrounding area based on several major-earthquake seismogenic structures for which historical and paleoseismic event data were available. With the time-dependent model, we calculated the distribution of peak ground acceleration with 10% probability of exceedance in the next 50 years in Taiyuan and the surrounding area, and compared the results with those calculated using the time-independent model. The results showed that the entire area around Taiyuan has a higher seismic hazard with the time-dependent model than that with the time-independent model. The Jiaocheng and Hengshan faults have much higher seismic hazard. Applying the model only to Taiyuan showed that the city has higher seismic hazard with the time-dependent model than that with the time-independent model. In particular, in the western part of Taiyuan, the seismic hazard is quite high because of the proximity of the area to the Jiaocheng Fault.
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Acknowledgements
The time-independent seismic hazard model was obtained from the Compiling Committee of the Seismic Zoning Map in China. We thank them for providing the area source model, seismicity model, GMPE model, and site condition model data.
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Sponsored by: International partnership program of Chinese Academy of Sciences (131551KYSB20160002); Fundermental Research Specific Fund (DQJB16B19).
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Li, C., Xu, W., Wu, J. et al. Time-dependent probabilistic seismic hazard assessment for Taiyuan, Shanxi Province, China, and the surrounding area. J Seismol 21, 749–757 (2017). https://doi.org/10.1007/s10950-016-9633-1
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DOI: https://doi.org/10.1007/s10950-016-9633-1