摘要
本文总结了射阳MS 4.4地震前新沂台地电阻率、短水准资料的变化,认为:(1)在震前,新沂台地电阻率、短水准资料存在较为明显的地震异常;(2)前兆异常变化与预测地震的发震时刻、震级对应性较强。通过数据跟踪,认为造成预测地点错误的主要原因,是震前对地电阻率的对比分析结果认识不足以及对新沂台地电阻率N45°E向资料变化认识不足或错误。如能再结合测震学参数等资料进行综合分析,预测地点可能更为准确。
In this paper, we summarized variations of geo-electrical resistivity and short-leveling data in Xinyi station before the Sheyang MS 4.4 earthquake. We found that there exist obvious anomalies in geoelectrical resistivity and short-leveling before the earthquake. The precursory anomalies are corresponding well with the time and magnitude of the earthquake. By tracking the data, we found that the insufficient understanding of the comparative analysis of the geo-electrical resistivity before earthquakes, and the misunderstanding of channel N45°E of geo-electrical resistivity in Xinyi station before the earthquake, is in responsible for the failure of the correct location determination before the earthquake.
作者
李飞
杨冯威
董淼
Li Fei;Yang Fengwei;Dong Miao(Xinyi Seismic Station of Jiangsu Earthqucke Agency,Xinyi 221400,Jiangsu,China)
出处
《震灾防御技术》
CSCD
北大核心
2018年第3期662-670,共9页
Technology for Earthquake Disaster Prevention
基金
中国地震局监测
预报
科研三结合项目(171107)
关键词
射阳地震
地电阻率
短水准
震群活动
异常特征
Sheyang earthquake
Geo-electrical resistivity
Short-leveling
Earthquake swarms
Anomalycharacter
