2006年文安及1967、1973年河间地震与邢台地震群子序列的对比

英文篇名：COMPARATION BETWEEN WENAN-HEJIAN EARTHQUAKES AND SUBSENQUCE OF XINGTAI EARTHQUAKE SWARM
中文刊名：内陆地震
英文刊名：Inland Earthquake
作者：杨锐 ; 张凤秋 ; 王想 ; 冯向东 ; 边学峰
英文作者：YANG Rui1 ; ZHANG Feng-qiu2 ; WANG Xiang1 ; FENG Xiang-dong1 ; BIAN Xue-feng1 (1.Seismological Bureau of Hebei Province ; Shijiazhuang 050021 ; China ; 2.Huailai Seismic station of Hebei Seismological Bureau ; Zhangjiakou 075400 ; China)
中文关键词：文安地震 ; 邢台地震 ; 地震序列
英文关键词：Wenan earthquake ; Xingtai earthquake ; Earthquake sequence
出版日期：2011-12-15
机构：河北省地震局;河北省地震局怀来地震台;
年：2011
期：04
出版单位：内陆地震

摘要

2006年7月4日河北文安5.1级地震属于孤立型地震,无法根据地震序列提取更多信息,故将该地震与1967年3月27日河间6.3级地震、1973年12月31日河间5.3级地震合并作为一个整体,与邢台地区部分地震作对比分析。由此总结出文安及附近地区地震的活动特点:①呈NNE和NWW共轭分布;②各次地震的时间间隔大幅增长;③余震频度逐渐降低,衰减逐渐加快;④类型向孤立型地震过渡;⑤宏观烈度均比估算烈度低1度左右;⑥震源机制趋于一致。
Wenan M5.1 earthquake in Hebei on Jul.4 in 2006 is isolated type,and cannot extract more information from the earthquake sequence,so we combine this earthquake with Hejian M6.3 earthquake on Mar.27 in 1967 and the Hejian M5.3 earthquake on Dec.31 in 1973 as a whole,compared with some earthquakes occurred in Xingtai region,and summed up the earthquake activity characteristics in Wenan and its surrounding area:NNE—NWW conjugate distribution,the earthquake time interval increased significantly,the aftershocks frequency reduced gradually;the attenuation accelerated gradually,transition to isolated types,all the macro intensity was about one degree lower than the estimated;the coherence parameter of focal mechanism became consistent.

引文

[1]沧州市地震局,廊坊市地震局.一九六七年河间—大城地震[M].北京:地震出版社,2001,97-113.
    [2]刁桂苓,张四昌,孙佩卿,等.2006年7月4日文安5.1级地震[J].地震地质,2006,28(3):497-502.
    [3]刁桂苓,王泽皋.邢台地震群中的子序列[J].地震学报,1988,10(2):137-144.
    [4]李善邦.实用震级表[J].地球物理学报,1958,(7):98-102.
    [5]杨家亮,张四昌,刁桂苓,等.沧州地区NWW向隐伏断裂存在依据及其地震地质意义[J].西北地震学报,2010,32(2):191-195.