【摘要】 为了探讨昆仑8.1级地震引起的同震形变是否影响了青藏块体东北缘的地壳水平运动,以震后GPS观测资料为数据源,依Okada位错模型原理,计算了地震引起的同震水平位移场,分析了地震对区域地壳水平运动的影响。结果表明:垂直于断层沿震中方向的GPS点受地震影响大,远离断层的测点的同震位移受断层位错的影响小。更多还原

【Abstract】 The 14 November, 2001, Ms 8.1 west Kunlun earthquake is the largest event that has occurred in the Tibetan Plateau since 1951. In order to examine the influence of the earthquake on the crustal motion, taking Kunlun Ms 8.1 earthquake as an example, using GPS data measured after Kunlun Ms 8.1earthquake as data source, and using Okada dislocation model as principle, the authors compute the coseismic horizontal displacement field. They also analyze the effect on local crustal horizontal motion. The results indicate that the GPS spots which plumb the fault along epicenter direction are more affected, while the influences of fault dislocation to the co-meismic displacement of the spots is less.更多还原