2012年5月3日金塔—阿拉善盟5.4级地震震源机制解

Focal Mechanism of the Jintan-Alashanmeng M5.4 Earthquake on May 3, 2012

摘要:

利用甘肃省数字地震台网的波形资料,采用CAP方法反演得到2012年5月3日金塔-阿拉善盟5.4级地震的震源机制解。震源性质为走滑型,断层破裂面为78°,主压应力P轴方向为N32°E,震源深度为9km。

Abstract:

Using the waveform data from the Digital Seismological Network of Gansu province, adopting CAP method, the focal mechanism of the 5. 4 earthquake which occurred at JinTan-Alashanmeng on May 3, 2012, is obtained. It shows that the character of focus is strike-slip, the fault rupture plan is 78°, azimuth of maximum principal compressive stress, P, is N32°E, and the focal depth is 9 km.