摘要
针对2013年9月巴基斯坦7.7级地震活动过程的基本资料,就其构造环境、地震活动背景,以及地震的成因,进行了广泛的研究和讨论。研究结果表明,巴基斯坦7.7级地震是在东半球总体呈顺时针旋转的背景下形成兴都库什逆时针旋扭运动,从而致使Chaman断裂左行继承性活动而造成的,其深层次的原因是兴都库什地震柱活动的能量累积与控制,或有深部流体的参与,而致流体(气体或液体)的上涌与地表断层的错动并发。
In this paper,extensive research and discussion for Pakistan earthquake with MS7. 7 on September,2013 carried out according to basic data including the activity process,tectonic environment,seismic activity background and causes of earthquakes. The results showed： Pakistan earthquake was caused by inheritance motion of left rotary of the Chaman fault under background of Hindukush anti-clockwise twisting movement,which was formed by Eastern Hemisphere overall clockwise rotation,and deep-seated reason was earthquake energy accumulation and controlled by Hindukush seismic cone,perhaps deep fluid involvement,fluid upwelling（ gas or liquid） and surface fault dislocation were happened together. Pakistan had special tectonic conditions and seismic background,perhaps caused earthquake prediction more difficult. In this paper,relationship between the seismic activity and the seismic tectonic in the earthquake affected area in cones.
出处
《内陆地震》
2015年第1期15-27,共13页
Inland Earthquake
基金
湖南省地震局2012年度地震科研课题资助项目(201201)
关键词
巴基斯坦地震
兴都库什
地震柱
旋扭运动
大陆漂移
Pakistan Earthquake
Hindukush
Seismic cone
Rotary movement
Continental drift
