天津地区井水位固体潮观测的加卸载响应比变化与附近地震关系的研究
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摘要
用加卸载响应比的方法,处理了天津地区2002年以来静海地震台井、宝坻地震台井、高村井和张道口地震台深井地下水位固体潮观测数据,并以加卸载响应比计算值的2倍方差作为异常判定指标,将天津及周边地区发生的M_L≥4.0地震参数与井水位固体潮响应比异常变化对比分析。结果表明:该区4口地下水位固体潮井的加卸载响应比异常变化与附近的地震活动有较好的对应关系。从而证明,利用井水位固体潮观测的加卸载响应比是一种能有效识别和提取地震前兆的方法。
Using the method of load/unload response ratio , the observation data of the underground water of Jinghai, Baodi, Gaocun, Zhangdaokou Seismic Station in Tianjin since 2002 are processed.Taking double the mean-square deviation of calculated value of loading/unloading response ratio as anomaly decision index, the corresponding relations in abnormal changes of underground water lever of response ratio and M_L≥4.0 earthquake parameter occurred in Tianjin and its neighboring areas are analyzed.The results show that there are better corresponding relations between anomalous changes of load/unload response ratio of 4 underground water lever earth tide well in this area and its neighboring earthquake actives.It also proved that using load/unload response ratio of earth tide observation in well water lever is a method that could effectively identify and extract seismic precursory.
Using the method of load/unload response ratio , the observation data of the underground water of Jinghai, Baodi, Gaocun, Zhangdaokou Seismic Station in Tianjin since 2002 are processed.Taking double the mean-square deviation of calculated value of loading/unloading response ratio as anomaly decision index, the corresponding relations in abnormal changes of underground water lever of response ratio and M_L≥4.0 earthquake parameter occurred in Tianjin and its neighboring areas are analyzed.The results show that there are better corresponding relations between anomalous changes of load/unload response ratio of 4 underground water lever earth tide well in this area and its neighboring earthquake actives.It also proved that using load/unload response ratio of earth tide observation in well water lever is a method that could effectively identify and extract seismic precursory.
引文
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张昭栋,郑金涵,冯初刚.深井水位的固体潮响应[J].地震学报,1991,13(1) :66-75．
庞群英,徐学恭,胡培元,宋金钟,田山.静海地震台地磁加卸载响应比[J].地震地磁观测与研究,2007,28(1) :52-55．
田山,汪翠芝,李君英,等.数字前兆观测地震异常短临特征的初步研究[J].地震地磁观测与研究,2009,30(2) :57-67．
万永芳,刘特培.地下水位固体潮加卸载响应比分析及预测意义[J].华南地震,2004,24(1) .
王裕仓.尹祥础,彭克银,王海涛.加卸载响应比的数值模拟[J].地球物理学报,1999,42(5) :669-676．
王裕仓,尹祥础,王海涛.地震预测的加卸载响应比岩石实验模拟[J].中国地震,1998,14(2) :126-130．
尹祥础,陈学忠,宋治平.加卸载响应比理论--一种地震一般方法[J].地球物理学报,1994,37(6) :767-775．
尹祥础,尹灿.非线性系统失稳的前兆与地震预报[J].中国科学(B辑),1991,21(5) :512-518．
尹祥础.地震预测新途径的探索[J].中国地震,1997,(3) :1-7．
尹祥础.地震预报的新途径--加卸载响应比理论[J].力学与实践,2004,26(6) :1-7．
张昭栋,郑金涵,冯初刚.深井水位的固体潮响应[J].地震学报,1991,13(1) :66-75．
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