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Probabilistic seismic risk analysis in the Taiwan area based on PGA and spectral amplitude attenuation formulas |
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| Authors: | Chin-Hsiung Loh Yeong Tein Yeh Wen-Yu Jean and Yih-Hsiung Yeh |
| Institution: | aDepartment of Civil Engineering, National Taiwan University, Taipei, Taiwan bInstitute of Earth Sciences, Academia Sinica, Taipei, Taiwan cEastern International Engineers Inc., Taipei, Taiwan |
| Abstract: | A method for conducting a seismic hazard analysis of active faults using a fault-rupture model and a point-source model is presented. Based on a peak ground acceleration (PGA) attenuation formula, the annual probability of exceedance at a specific site is calculated. The uniform hazard spectrum is also determined based on a spectral amplitude attenuation formula. To improve the reliability of the seismic hazard analysis, a detailed study of hazard parameters is conducted and discussed. A specific site in Taiwan is chosen to illustrate the hazard analysis. |
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