【摘要】 选用区域数字地震台网的波形资料,利用CAP方法反演了2011年3月3日久治—玛曲4.1级地震震源机制解。反演结果显示,本次地震的最佳双力偶解为节面Ⅰ走向306°、倾角82°、滑动角-5°,节面Ⅱ走向37°、倾角85°、滑动角-172°,地震类型为走滑型,震源深度为5.5 km,属于汶川地震后区域应力场调整引发的一次地震事件。更多还原

【Abstract】 In this paper,using waveform from regional seismological network and CAP method,we get Jiuzhi Maqu 4.1 earthquake on March 3,2011.The result shows that the best double solution is 306°,82° and-5° for strike,dip and slip angles respectively with the other nodal plane of 37°,85° and-172°.The earthquake belongs to strike-slip type and the focal depth is 5.5 km.The regional stress adjustives after Wenchuan earthquake arose the Jiuzhi-Maqu earthquake.更多还原