2009年以来黑龙江省固体潮调制比特征与地震关系研究  

Study on the Relationship between Earth Tide Modulation Ratio Characteristics and Earthquakes in Heilongjiang Province since 2009

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

机构地区：[1]黑龙江省地震局,哈尔滨150090

出　　处：《大地测量与地球动力学》2024年第10期1053-1058,共6页Journal of Geodesy and Geodynamics

摘　　要：在中国地震台网中心统一地震目录的基础上,采用固体潮调制比时空扫描方法,对黑龙江省2009年以来发生的4级以上地震事件进行详细分析,旨在揭示这些地震震前固体潮调制比的时空演化特征。结果表明,7次4级地震中观察到6次地震震前出现了调制比异常,表明调制比异常与地震发生的关联性具有较高的对应率,约为86%,异常区域分布在震中距150 km范围内,异常通常在主震前1.5 a左右出现,呈高值异常,多数在震前5个月内消失或减弱。因此,固体潮调制比分析方法对黑龙江省4级以上地震的预测具有一定的指示意义。By using the time-space scanning method,based on the unified earthquake catalog of China Earthquake Network Center,we analyze the temporal and spatial characteristics of earth tide modulation ratio before M_S≥4 earthquakes in Heilongjiang province since 2009.The results show that among the 7 cases of M_S≥4 earthquakes,there are 6 cases of abnormal modulation ratio before the earthquake,the corresponding rate of earthquake occurrence is about 86%.The abnormal areas are distributed within 150 km from the epicenter.The anomalies usually appear around a year and a half before the main earthquake,presenting high value anomalies,most of which disappear or weaken within 5 months before the earthquake.Therefore,the method of earth tide modulation ratio analysis has a certain indicative significance for the earthquake prediction of M_S≥4 in Heilongjiang Province.

关 键 词：地震 固体潮调制比 时空特征 时序特征 

分 类 号：P315[天文地球—地震学]