山西水井观测网对汶川8.0和日本9.0级地震的同震响应分析
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摘要
对山西地区水井观测网水位、水温测项在汶川8.0和日本9.0级地震前后的资料进行对比分析,结果显示,同一地震各观测井水位、水温测项变化形态不尽相同,表明同一地震对不同观测井造成的响应特征亦不相同;对比两次地震各观测井的响应特征,发现具有不固定的变化模式,可能与各观测井所处地质构造、水文地质条件及观测含水层深度及地震类型有关。
Through the analysis of the co-seismic changes of water level and water temperature of well observation network in Shanxi Province to Wenchuan M_s 8.0 earthquake and Japan M_s 9.0 earthquake,it was found that different water level and temperature level have different responding to same earthquake.This result indicates that the same seism can cause different response characteristics at the different observation wells.Contrasted the twice responding characteristic of different well in Shanxi to Wenchuan M_s 8.0 earthquake and Japan M_s 9.0 earthquake,we find that there are unfixed changing pattern of the observation wells.This may be related to the local geological structure,hydro-geological conditions and observing the aquifer depth and earthquake type.
Through the analysis of the co-seismic changes of water level and water temperature of well observation network in Shanxi Province to Wenchuan M_s 8.0 earthquake and Japan M_s 9.0 earthquake,it was found that different water level and temperature level have different responding to same earthquake.This result indicates that the same seism can cause different response characteristics at the different observation wells.Contrasted the twice responding characteristic of different well in Shanxi to Wenchuan M_s 8.0 earthquake and Japan M_s 9.0 earthquake,we find that there are unfixed changing pattern of the observation wells.This may be related to the local geological structure,hydro-geological conditions and observing the aquifer depth and earthquake type.
引文
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付虹,刘丽芳,王世芹,等.地方震及近震地下水同震震后效应研究[J].地震,2002,22(4):55-66.
刘耀炜,杨选辉,刘用铭,等.地下流体对苏门答腊8.7级地震的响应特征//中国地震局监测预报司编.2004年印度尼西亚苏门答腊8.7级大地震及其对中国大陆地区的影响[M].北京:地震出版社,2005:131-258.
杨选辉.印尼8.7级地震后中国大陆出现的同震震后宏观现象//2005年地震预报专业委员会议论文集[C].2005:10-11.
罗俊秋,孙伶俐,李明,等.水位、水温对汶川8.0和日本9.0级地震的同震响应特征分析[J].大地测量与地球动力学,2011,31(增刊).
高小其,陈华静,杨又陵,等.2004年12月26日印尼8.7级强震新疆地区的同震效应[J].地震地磁观测与研究,2006,27(3):40-45.
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