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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】 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 M7are 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.
【关键词】 双差地震定位；
小震密集带；
断裂构造；
【Key words】 double-difference location approach； intensive belt of small earthquakes； fault structure；
【Key words】 double-difference location approach； intensive belt of small earthquakes； fault structure；
【基金】 河北省地震局地震科研基金项目
- 【文献出处】 华北地震科学 ,North China Earthquake Sciences , 编辑部邮箱 ,2012年02期
- 【分类号】P315.2
- 【被引频次】1
- 【下载频次】59