Abstract Using horizontal velocity data observed by GPS in 2009-2010 in Sichuan and its nearby areas, referring to relevant results in 2004-2007 and 2007-2008, with the aid of analysis of deformation-stain field and inversion of negative dislocation, the features of recent strain accumulation of active faults and their difference between different regions and different segments and together with the evolution of influence from the Wenchuan and Yushu earthquakes are researched.The results are as follows.1)Influence from the Wechuan earthquake decreased obviously but had not ended, at the Longmenshan fault and its two ends especially. 2)Weaker influence from the Yushu earthquake was observed. 3)At present,these regions had background of strong earthquakes, i.s., the southwestern margin of Ordos, boundary of GansuQinghaiSichuan and GansuSichuan and GansuSichuanShannxi, eastern boundary between Sichuan and Yunnan, from the northwestsen Yunnan to the boundary between Sichuan and Yunnan.
Zhang Xi,Jiang Fengyun,Cui Duxin et al. ANALYSIS OF STRAIN ACCUMULATION AND INFLUENCE OF GREAT EARTHQUAKE OBSERVED BY GPS IN SICHUAN AND ITS ADJACENT AREAS[J]. , 2011, 31(5): 9-13.
Zhang Xi,Jiang Fengyun,Cui Duxin et al. ANALYSIS OF STRAIN ACCUMULATION AND INFLUENCE OF GREAT EARTHQUAKE OBSERVED BY GPS IN SICHUAN AND ITS ADJACENT AREAS[J]. jgg, 2011, 31(5): 9-13.
