2009年以来黑龙江省及邻区中等地震前地震矩加速释放特征  

Characteristics of Accelerating Moment Release before Moderate Earthquakes in Heilongjiang Province and Adjacent Areas since 2009

作　　者：周晨 李永生 李俊秋 张思萌 石伟 刘长生 ZHOU Chen;LI Yongsheng;LI Junqiu;ZHANG Simeng;SHI Wei;LIU Changsheng(Heilongjiang Earthquake Agency,24 Hongxiang Road,Harbin 150090,China)

机构地区：[1]黑龙江省地震局,哈尔滨市150090

出　　处：《大地测量与地球动力学》2025年第4期373-379,共7页Journal of Geodesy and Geodynamics

基　　金：吉林长白山火山国家野外科学观测研究站课题(NORSCBS21-09);2024年度黑龙江省地震局火山活动性研究创新团队项目;中国地震局地震科技星火计划(XH20017);黑龙江省地震局科研项目(202301)。

摘　　要：通过选择适合区域特点的时间和空间尺度,利用地震矩加速释放程度预测地震发生的地点,对2009年以来黑龙江省及邻区的8次M S4.0以上地震进行回溯性检验。结果表明,8次地震中有5次在地震前可观察到不同程度的地震矩加速释放现象,同时部分地震前能观察到加速区域向震中迁移的现象;其他3次震前未能观察到明显的地震矩加速释放现象。说明利用地震矩加速释放现象对黑龙江省及邻区中等地震的发震地点预测有一定的指示意义。By selecting time and spatial scales suitable for regional characteristics and using accelerating moment release to predict the location of earthquakes,retrospective testing was conducted on 8 earthquakes with M S4.0 or higher in Heilongjiang province and adjacent areas since 2009.The results showed that 5 earthquakes observed accelerating moment release phenomenon before the earthquake,while in the other 3 were not observed.At the same time,before some earthquakes,it can be observed that there was a phenomenon of accelerated areas migrating towards the epicenter.This indicates that accelerating moment release has certain indicative significance for predicting the occurrence location of moderate earthquakes in Heilongjiang province and adjacent areas.

关 键 词：地震矩加速释放 Benioff应变 震例回溯性分析 发震地点预测 

分 类 号：P315[天文地球—地震学]