| 新沂台前兆异常与射阳4.4级地震的关系及其预测、跟踪分析的研究 |
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| 引用本文： | 李飞,杨冯威,董淼.新沂台前兆异常与射阳4.4级地震的关系及其预测、跟踪分析的研究[J].震灾防御技术,2018,13(3):662-670. |
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| 作者姓名： | 李飞 杨冯威 董淼 |
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| 作者单位： | 江苏省地震局新沂地震台, 江苏新沂 221400 |
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| 基金项目： | 中国地震局监测、预报、科研三结合项目（171107） |
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| 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。
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| 关 键 词： | 射阳地震 地电阻率 短水准 震群活动 异常特征 |
| 收稿时间： | 2017/12/20 0:00:00 |
Prediction and Tracking Analysis of Precursory Anomalms of the Sheyang MS4.4 Earthquake from Xinyi Station |
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| Li Fei,Yang Fengwei and Dong Miao.Prediction and Tracking Analysis of Precursory Anomalms of the Sheyang MS4.4 Earthquake from Xinyi Station[J].Technology for Earthquake Disaster Prevention,2018,13(3):662-670. |
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| Authors: | Li Fei Yang Fengwei and Dong Miao |
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| Institution: | Xinyi Seismic Station of Jiangsu Earthqucke Agency, Xinyi 221400, Jiangsu, China |
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| Abstract: | 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. |
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| Keywords: | Sheyang earthquake Geo-electrical resistivity Short-leveling Earthquake swarms Anomaly character |
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