Far-field deformations caused by the 2004 Sumatra earthquake

作     者：Guangyu Fu Wenke Sun 

作者机构：Institute of Earthquake Science China Earthquake Administration Beijing 100036 China Laboratory of Computational Geodynamics Graduate University of Chinese Academy of Sciences Beijing 100049 China 

出 版 物：《Geodesy and Geodynamics》 (大地测量与地球动力学（英文版）)

年 卷 期：2010年第1卷第1期

页      面：70-78页

学科分类：070801[理学-固体地球物理学] 07[理学] 08[工学] 0708[理学-地球物理学] 081601[工学-大地测量学与测量工程] 0816[工学-测绘科学与技术] 

基　　金：supported by Basic Research Foundation from Institute of Earthquake Science CEA(0210240101) 

主　　题：the 2004 Sumatra earthquake dislocation theory displacement strain gravity change far-field deformation 

摘      要：Theoretical horizontal displacements caused by the 2004 Sumatra earthquake in the Sichuan-Yunnan area have been calculated according to a spherical dislocation theory and an earthquake-fault model. The results show that the theoretical displacements are basically consistent with the GPS observations in situ. On this basis,we have calculated the co-seismic displacements, strains, changes of gravity and geoid of the whole Earth, including China mainland and vicinity, caused by this earthquake. Key wards：