HR: 0800h
AN: S41A-0233    [Abstracts]
TI: A Study of Earthquake Location by Artificial Explosive Data
AU: * Chang, C
EM: gensin@scman.cwb.gov.tw
AF: Central Weather Bureau, 64 Kung Yuan Road, Taipei, 10048,
AU: Wu, Y
EM: drymwu@ntu.edu.tw
AF: Department of Geosciences, National Taiwan University, No. 1, Sec. 4th, Roosevelt Road, Taipei, 10617,
AU: WANG, C
EM: wangcy@cc.ncu.edu.tw
AF: Institute of Geophysics, National Central University, No.300, Jhongda Rd., Jhongli, 32001,
AU: Shin, T
EM: shin@scman.cwb.gov.tw
AF: Central Weather Bureau, 64 Kung Yuan Road, Taipei, 10048,
AB: A good quality of earthquake location is very important factor to all of the earthquake studies. On October 18, 2006, an explosion was taken by the Taiwan Integrated Geodynamics Research (TAIGER) project at the Dili Village in central Taiwan to test seismic signal receiving condition for the future project. The explosion signals were recorded by the Central Weather Bureau Seismic Network (CWBSN). It offers a good opportunity to study the location accuracy of the CWBSN. We relocated this event using the layered model that routinely used in the CWBSN and a recently 3-D model by Wu et al. (2007). Our results show that the event locations determined by layered and 3-D model were caused 5.0 and 1.5 km from the true location, respectively. Base on this result, we suggest that the CWBSN location may have about 5 km error in routinely operation. The location error may shorten to 1.5 km by using 3-D model. Those are good reference values for the Taiwan earthquake studies using the CWBSN catalog.
DE: 0935 Seismic methods (3025, 7294)
DE: 0994 Instruments and techniques
DE: 3260 Inverse theory
DE: 7260 Theory
DE: 7294 Seismic instruments and networks (0935, 3025)
SC: Seismology [S]
MN: 2007 Fall Meeting