Stochastic Finite-Fault Modeling of Ground Motions from the 1999
Chi-Chi, Taiwan, Earthquake with Implications for Site Nonlinear Phenomenon
Speaker:Fu-ming Wu
Abstract
The stochastic method for simulating strong ground motions from finite faults is applied to the records of the 1999 Chi-Chi, Taiwan, earthquake. The method involves discretization of the fault plane into smaller subfaults, each of which is assigned an omega square spectrum. The contributions from all subfaults are empirically attenuated to the observation site and summed to produce the synthetic acceleration time history.The stochastic method for simulating strong ground motions from finite faults is applied to the records of the 1999 Chi-Chi, Taiwan, earthquake. The method involves discretization of the fault plane into smaller subfaults, each of which is assigned an omega square spectrum. The contributions from all subfaults are empirically attenuated to the observation site and summed to produce the synthetic acceleration time history.

Reference

Beresnev, I. A., and G. M. Atkinson (1998b).Stochastic finite-fault modeling of ground motions from the 1994 Northridge, California, earthquake. I. Validation on rock sites, Bull. Seism. Soc. Am. 88, 1392–1401.

(Abstract)(Full text)

Roumelioti,Z.,and A. I. Beresnev (2003) Stochastic Finite-Fault Modeling of Ground Motions from the 1999 Chi-Chi, Taiwan, Earthquake: Application to Rock and Soil Sites with Implications for Nonlinear Site Response

(Abstract)(Full text)