The NE Directed Seismicity Belt in Tibet after the M_S8.1 Nepal Earthquake and Its Predictive Significance

查看全文 作　　者：Wang [1]Shuangxu;Zhu [1]Liangyu;Xu [1]Jing;Ji [1]Lingyun;Jiang [1]Fengyun

机构地区：[1]The Second Monitoring and Application Center,China Earthquake Administration

出　　处：《Earthquake Research in China》索引2018年第32卷第1期,共11页

基　　金：funded by China Comprehensive Geophysical Field Observation in North China of Earthquake Scientific Research(201508009) 摘　　要：After the 2015 M_S8. 1 Nepal earthquake,a strong and moderate seismicity belt has formed in Tibet gradually spreading along the northeast direction. In this paper,we attempt to summarize the features and investigate the primary mechanism of this behavior of seismic activity,using a 2-D finite element numerical model with tectonic dynamic settings and GPS horizontal displacements as the constraints. In addition,compared with the NEtrending seismicity belt triggered by the 1996 Xiatongmoin earthquake,we discuss the future earthquake hazard in and around Tibet. Our results show that: the NE-directed seismicity belt is the response of enhanced loading on the anisotropic Qinghai-Tibetan plateau from the Indian plate and earthquake thrusting. Also,this possibly implies that a forthcoming strong earthquake may fill in the gaps in the NE-directed seismicity belt or enhance the seismic hazard in the eastern( the north-south seismic zone) and western( Tianshan tectonic region) parts near the NE-directed belt. 关键词：The 2015 M S8.1 Nepal EARTHQUAKE Qinghai-Tibetan plateau NE-directed SEISMICITY BELT PREDICTIVE SIGNIFICANCE

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The NE Directed Seismicity Belt in Tibet after the M_S8.1 Nepal Earthquake and Its Predictive Significance

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