摘要
以辽宁省近年来流动重力观测数据为基础,统计监测区内主要地震事件(灯塔M5.1;朝阳M4.6;海城M4.4)与重力变化的对应关系,通过分析重力时变特征,提取重力异常判定指标,构建定量指标体系,提高重力学科在地震监测中的预报效能。研究结果从定性和定量两方面完整的给出了辽宁省M5.0±0.5震级档重力异常判定指标,同时对M6.0以上强震预判提供了科学参考。
Based on the data of flow gravity observation in recent years in Liaoning Province,corresponding relationship is counted between major seismic events(DengtaM5.1,ChaoyangM4.6,HaichengM4.4)and gravity changes in recent years.By analyzing the characteristics of gravity space-time variation,the judgment index of gravity anomaly is extracted,and the quantitative index system is constructed,the prediction efficiency of gravity subject in seismic monitoring is improved.The results of the study give a complete judgment index of gravity anomaly of Liaoning Province with magnitude of M5.0±0.5 from both qualitative and quantitative aspects,and provides a scientific reference for the prediction of strong earthquakes above M6.0.
作者
李玉森
底欣欣
臧石磊
李伟
商占鑫
LI Yu-sen;DI Xin-xin;ZANG Shi-lei;LI Wei;SHANG Zhan-xin(Liaoning Earthquake Agency,Liaoning Shenyang 110034,China)
出处
《防灾减灾学报》
2019年第1期13-19,共7页
Journal of Disaster Prevention And Reduction
基金
辽宁省地震局青年科研基金项目(LZ201820)
关键词
重力测量
重力变化
异常判定
指标体系
gravity survey
gravity variation
anomaly determination
index system
作者简介
李玉森(1986-),男,辽宁省盖州市人,2012年毕业于辽宁师范大学,硕士,工程师,现主要从事震害防御和重力测量与分析等相关研究。E-mail:liyusenfd@163.com.
