| 唐山余震活动的分期分区特征 |
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| 引用本文： | 吕培苓,付征祥,薛峰,陈章立.唐山余震活动的分期分区特征[J].西北地震学报,1982,4(3):12-18. |
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| 作者姓名： | 吕培苓 付征祥 薛峰 陈章立 |
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| 作者单位： | 地震分析预报中心
(吕培苓，付征祥，薛峰)，地震分析预报中心(陈章立) |
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| 摘 要： | 本文研宄唐山余震活动时空分布特征,提出唐山余震活动可以分为四个时期和三个余震活动亚区。文中讨论了这一分布特征与震源区地质构造、深部结构以及主震前后地面形变特征的关系。最后指出,主震后应力场的重新分布以及膨胀-流体流动理论可以作为唐山余震成因的一种物理解释。
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| 收稿时间： | 1981/2/13 0:00:00 |
CHARACTERISTICS OF AFTERSHOCK ACTIVITIES IN TANGSHAN |
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| L&#; Pei-ling,Fu Zheng-xiang,Xue Feng and Chen Zhang-li.CHARACTERISTICS OF AFTERSHOCK ACTIVITIES IN TANGSHAN[J].Northwestern Seismological Journal,1982,4(3):12-18. |
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| Authors: | L&#; Pei-ling Fu Zheng-xiang Xue Feng and Chen Zhang-li |
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| Institution: | Centre of Analysis and Prediction, State Seismological Bureau,Centre of Analysis and Prediction, State Seismological Bureau,Centre of Analysis and Prediction, State Seismological Bureau and Centre of Analysis and Prediction, State Seismological Bureau |
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| Abstract: | Based on the analysis of characteristics of aftershock activities in Ta-ngshan,the authors think aftershock activities in Tangshan can be fallen into four stages and three subregions.In this paper the authors also discu-ss the relationships between these characteristics and the geological struc-tures,the structure of depthin seismic focus area,and the characteristics of ground deformation before and after main earthquake.Finally,the aut-hors point out that new distribution of stress field after main earthquake and dilation-flowing fluid theory can regarded as a physical interpretati-on of genesis of Tangshan a ftershock. |
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