河北中强地震序列类型统计及空间分布特征  

Statistical and Spatial Distribution Characteristics of Moderate and Strong Earthquakes Sequences in Hebei Province

作　　者：温超[1] 蔡玲玲[1] 黎勇 孟立朋[1] 周月玲[1] 张合[1] 郭秋娜[1] WEN Chao;CAI Lingling;LI Yong;MENG Lipeng;ZHOU Yueling;ZHANG He;GUO Qiuna(Hebei Earthquake Agency,Shijiazhuang 050021,China;Shijiazhuang Emergency Management Bureau,Shijiazhuang 050005,China)

机构地区：[1]河北省地震局,石家庄050021 [2]石家庄市应急管理局,石家庄050005

出　　处：《华北地震科学》2020年第4期8-14,共7页North China Earthquake Sciences

基　　金：中国地震局监测司青年骨干项目(20170604);河北地震科技星火计划项目(DZ20190423068)。

摘　　要：系统地整理和分析了河北省有史以来4级以上的地震序列类型,并结合该地区地震地质构造特征进行研究。结果表明:①河北省地震序列类型以主余型为主,孤立型地震次之;②地震序列类型在空间分布上也有着较为明显的区域特征;③河北省有记载以来M≥4.0地震共计328次,其中有287次地震可确定地震类型,结合区域构造特征,可以将河北省划分为7个不同的地震类型分区,为震后河北省地震序列早期趋势判定提供重要参考依据。This paper systematically analyzes the types of M≥4.0 earthquake sequences in the history of Hebei province combining with earthquake geological structure.The results show:(1)The M≥4.0 earthquake sequences in Hebei province are mainly mainshock-aftershock type followed by isolated type.(2)The types of earthquake sequences also have obvious characteristics in spatial distribution.(3)There have been a total of 328 M≥4.0 earthquake sequences recorded in Hebei province,among which 287 earthquake sequences can be determined.Combining with regional structural characteristics,Hebei province can be divided into 7 different earthquake sequence type zones.Our study may provide an important reference for determining the early trend of earthquake sequence in Hebei province.

关 键 词：地震类型 地震地质构造 空间分布 类型分区 

分 类 号：P315.722[天文地球—地震学]