首页|期刊导航|中国地震研究（英文版）|Correlated Features of Horizontal Movement-Deformation on the North and East Margins of the Qinghai-Xizang Block before the Kunlun Earthquake with Ms=8.1
中国地震研究（英文版）2005，Vol.19Issue(3)：259-268,10.
Correlated Features of Horizontal Movement-Deformation on the North and East Margins of the Qinghai-Xizang Block before the Kunlun Earthquake with Ms=8.1
Correlated Features of Horizontal Movement-Deformation on the North and East Margins of the Qinghai-Xizang Block before the Kunlun Earthquake with Ms=8.1
摘要
Abstract
The high-precision GPS data observed from the northeast margin of the Qinghai-Xizang (Tibet) block and the Sichuan-Yunnan GPS monitoring areas in 1991 (1993), 1999 and 2001 revealed that: before the Kunlun earthquake with Ms = 8.1 on November 14, 2001, the dynamic variation features of horizontal movement-deformation field in the north and east marginal tectonic areas of the Qinghai-Xizang (Tibet) block had some correlated features.That is to say, under the general background of inherited movement, the movement intensities in the two areas weakened synchronously and the state of deformation changed when the great earthquake was impending. Analysis and study in connection with geological structures showed that before the Kunlun Ms8.1 earthquake, the correlated variations of movement-deformation on the boundaries of Qinghai-Xizang (Tibet) block were related to the disturbing stress field caused by the extensive and rapid stress-strain accumulation in the late stage of large earthquake preparation. Owing to the occurrence of large earthquake inside the block, the release of large amount of strain energy, and the adjustment of tectonic stress field, in relevant structural positions (especially zones not penetrated by historical strong earthquake ruptures)in boundary zones where larger amount of strain energy was accumulated, stress-strain may be further accumulated or else released through rupture.关键词
Kunlun Ms8.1 earthquake/Boundary of Qinghai-Xizang ( Tibet ) block/Horizontal movement-deformation/Correlated featuresKey words
Kunlun Ms8.1 earthquake/Boundary of Qinghai-Xizang ( Tibet ) block/Horizontal movement-deformation/Correlated features分类
天文与地球科学引用本文复制引用
Wang Shuangxu,Zhang Xi,Zhang Xiaoliang..Correlated Features of Horizontal Movement-Deformation on the North and East Margins of the Qinghai-Xizang Block before the Kunlun Earthquake with Ms=8.1[J].中国地震研究（英文版）,2005,19(3):259-268,10.基金项目
This project was sponsored by the Joint Earthquake Science Foundation (104011, 603001 and 603002), CEA. （104011, 603001 and 603002）
