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华北地区小震精定位及构造意义
引用本文:张广伟,雷建设,谢富仁,郭永霞,兰从欣.华北地区小震精定位及构造意义[J].地震学报,2011,33(6):699-714.
作者姓名:张广伟  雷建设  谢富仁  郭永霞  兰从欣
作者单位:1)中国北京100085中国地震局地壳应力研究所2)中国北京100081中国地震局地球物理研究所3)中国北京100080北京市地震局
基金项目:中央级公益性科研院所基本科研业务专项(ZDJ2007-1); 北京市自然科学基金项目(8092028)资助
摘    要:收集了华北地区2001年10月-2009年9月发生在该区内的7 519次地震事件被166个数字化地震台站记录到的74181条P波和74465条S波到时资料,采用双差定位法对这些小震进行了重新定位,最终得到了5 511次小震的定位结果.结果表明,重新定位后的结果较好地改进了原定位的精度.从平面上来看,重新定位后的小震更加...

关 键 词:小地震  地震带  双差定位  华北地区

Precise relocation of small earthquakes occurred in North China and its tectonic implication
Zhang Guangwei,Lei Jianshe,Xie Furen,Guo Yongxia,Lan Congxin.Precise relocation of small earthquakes occurred in North China and its tectonic implication[J].Acta Seismologica Sinica,2011,33(6):699-714.
Authors:Zhang Guangwei  Lei Jianshe  Xie Furen  Guo Yongxia  Lan Congxin
Institution:1) Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China2) Institute of Geophysics, China Earthquake Administration, Beijing 100081, China3) Earthquake Administration of Beijing Municipality, Beijing 100080, China
Abstract:In the present study we collected 74181 P-wave and 74465 S-wave arrival times from 7519 local earthquakes in North China recorded by 166 seismic stations during October 2001 to September 2009,and relocated these earthquakes by using double-difference location algorithm,finally obtained 5511 relocated earthquakes.Our result shows that the locations of the relocated earthquakes have been improved significantly over those of original ones.In map view the relocated earthquakes are more concentrated on obvious s...
Keywords:small earthquake  seismic zone  double-difference location algorithm  North China region  
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