摘要The Hori’s inverse method based on spectral decomposition was applied to estimate coseismic slip distribution on the rupture plane of the 14 November 2001 MS8.1 Kunlun earthquake based on GPS survey results. The inversion result shows that the six sliding models can be constrained by the coseismic GPS data. The established slips mainly concentrated along the eastern segment of the fault rupture, and the maximum magnitude is about 7 m. Slip on the eastern segment of the fault rupture represents as purely left-lateral strike-slip. Slip on the western segment of the seismic rupture represents as mainly dip-slip with the maximum dip-slip about 1 m. Total predicted scalar seismic moment is 5.196×1020 N·m. Our results constrained by geodetic data are consistent with seismological results.
Abstract：The Hori’s inverse method based on spectral decomposition was applied to estimate coseismic slip distribution on the rupture plane of the 14 November 2001 MS8.1 Kunlun earthquake based on GPS survey results. The inversion result shows that the six sliding models can be constrained by the coseismic GPS data. The established slips mainly concentrated along the eastern segment of the fault rupture, and the maximum magnitude is about 7 m. Slip on the eastern segment of the fault rupture represents as purely left-lateral strike-slip. Slip on the western segment of the seismic rupture represents as mainly dip-slip with the maximum dip-slip about 1 m. Total predicted scalar seismic moment is 5.196×1020 N?m. Our results constrained by geodetic data are consistent with seismological results.
基金资助:Chinese Joint Seismological Science Foundation (A07005), basic research foundation from Institute of Earthquake Science, and State Key Basic Research Development and Programming Project of China (2004CB418403)
通讯作者:
Honglin Jin
E-mail: jhl@seis.ac.cn
引用本文:
Honglin Jin, Hui Wang. Estimation of the 2001 Kunlun earthquake fault slip from GPS coseismic data using Hori’s inverse method[J]. 《地震学报》英文版, 2009, 22(6): 609-614.
Honglin Jin, Hui Wang. Estimation of the 2001 Kunlun earthquake fault slip from GPS coseismic data using Hori’s inverse method. Earthquake Science, 2009, 22(6): 609-614.
