HR: 0800h
AN: S11A-0282    [Abstracts]
TI: Strong Ground Motion Simulation of December 26^th, 2006 Ping-Tung Earthquake Based on Empirical Green's Function
AU: * Lin, C
EM: sei9602@eq.ccu.edu.tw
AF: Institute of Seismology, National Chung Cheng University, Institute of Seismology, National Chung Cheng University No. 168, University Rd., Minsyong, Chia-Yi, 621, Taiwan
AU: Huang, H
EM: seihuey@eq.ccu.edu.tw
AF: Institute of Seismology, National Chung Cheng University, Institute of Seismology, National Chung Cheng University No. 168, University Rd., Minsyong, Chia-Yi, 621, Taiwan
AB: Ping-Tung earthquake sequence (M_L=7.0) occurred at the southwestern offshore of Taiwan on December 26, 2006. This strong earthquake sequence caused many devastating effects at the Heng-Chun area. In the study, we examine the source models of this event using the observed seismograms by CWBSN and Microbs arrays at some stations surrounding the source area. An objective estimation method was used to obtain the parameters N and C which are needed for the empirical Greenˇ¦s function method by Irikura (1986). This method was called ˇ§source spectral ratio fitting methodˇ¨ which gives estimate of seismic moment ratio between a large and a small event and their corner frequencies by fitting the observed source spectral ratio with the estimated one which obeys the ω^-2 model (Miyake et al., 1999). It has an advantage of removing site effects in evaluating those parameters. The best source model of the Ping-Tung mainshock was estimated by comparing the observed waveforms with the synthetics using the empirical Greenˇ¦s function method.
DE: 7200 SEISMOLOGY
DE: 7212 Earthquake ground motions and engineering seismology
SC: Seismology [S]
MN: 2007 Fall Meeting