Subscribe to our weekly newsletter to get them delivered straight to your inbox!
Li, "Earthquake location problems in eastern Taiwan," 1995
USC thesis in Security.
August 26, 2009
Cheng-Ping Li, M.S.
Abstract (Summary)
The SMART 2 and HTN arrays of eastern Taiwan recorded 3-component digital data in 1991. Due to the synchronization problem, the conventional location method using the first P-arrival time can not be applied. Since the S-arrival can be picked considerable accuracy using digital 3-component data, we attempt to locate earthquakes by using Ts-Tp only.
We seek the best solution in the least squares sense through a non-linear optimization process. A location program is developed and tested based on S-P intervals and 3-D ray-tracing programs. Results showed that the accuracy of relocation strongly depends on the station distribution, model definition, and the accuracy of P- and S-picking. The hypocenters were consistently shifted from east to west, implying a lower velocity underneath the island of Taiwan. The particle motion is used to discriminate the contradicting relocation results from different data sets.
Advisor: Teng, Ta-Liang
Featured Articles
Events
December 3, 2020 - 3:00pm
Outside the Box [Office], USC U.S.-China Institute, and MTV Documentary Films present a Live Q&A with Writer/Director/Producer Hao Wu discussing his new documentary film 76 DAYS. Everyone who registers for the webinar will be sent a link to view the film 48 hours prior to the Q&A.
December 10, 2020 - 1:00pm
David Shambaugh speaks on his new book focusing on the United States and China in one of the world's most dynamic regions.