小震密集带与地质活动断裂的关系研究

STUDY ON RELATIONSHIP BETWEEN INTENSIVE BELT OF SMALL EARTHQUAKES AND ACTIVE GEOLOGICAL FAULTS

    摘要
  • 摘要: 采用双差地震定位方法对1830年磁县7(1/2)级地震X区及其附近地区小震进行重新定位,划分出小震密集带,根据小震空间分布特征,研究X区范围内断裂构造与小震密集带之间的关系。结果表明,小震主要集中在NE向断裂与磁县-大名断裂交汇处以及断层切割区。

     

    Abstract: Adopting double-difference location approach method, small earthquakes in X region and its surrounding area of 1830 M7 are relocated and intensive belt are found out;According to spatial distribution characters of the belt, relationship between the belt and active geological fault are studied.The result shows that small earthquakes are mostly concentrated upon junction area of faults in NE trending and Cixian- daming fault.

     

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