湖州地震台观测资料在汶川8.0级地震中的映震效应综合研究
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摘要
在湖州地震台现有的形变、测震、流体三大学科的观测资料基础上,对汶川8.0级地震中的映震效应综合研究,得出了水管倾斜仪、伸缩仪,这两套仪器的NS、EW两个分项,在同一个观测环境中,仪器记录的同一个地震,精度高的分量,振幅不一定大;钻孔应变仪和伸缩仪、水位、水温仪安装不同的地点,两个观测点直线距离大约五公里,从记录资料上看,两者反映地下介质变化是一致的;地形观测资料的映震效应初始时间基本和p波到时同步,流体观测资料的映震效应初始时间基本和S波到时同步。
This article is a comprehensive research on earthquake reflecting effects earthquake observation data of Huzhou Seismic Station for Wenchuan Ms8.0 earthquake,with the help of deformation,seismic and fluid data.The sub-items of NS and EW of the float tube tilt instrument and extensometer are acquired,and when observing the same earthquake in the same observation environment,amplitude is not necessarily big;Borehole Strainmeters,extensometers,and temperature of the water level instruments are placed in two places which are five kilometers distant,and the results show the same change of underground medium;the earthquake reflecting effect of topography data starts at the same time with the P wave,and that of fluid data starts at the same time with S wave.
This article is a comprehensive research on earthquake reflecting effects earthquake observation data of Huzhou Seismic Station for Wenchuan Ms8.0 earthquake,with the help of deformation,seismic and fluid data.The sub-items of NS and EW of the float tube tilt instrument and extensometer are acquired,and when observing the same earthquake in the same observation environment,amplitude is not necessarily big;Borehole Strainmeters,extensometers,and temperature of the water level instruments are placed in two places which are five kilometers distant,and the results show the same change of underground medium;the earthquake reflecting effect of topography data starts at the same time with the P wave,and that of fluid data starts at the same time with S wave.
引文
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[7]陆明勇,黄辅琼,周峥嵘,等.地壳形变与地下水异常关系研究进展[J].大地测量与地球动力学,2004,24(3):98.
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[2]中国地震局监测预报司[M].北京:地震出版社.2005.
[3]陈德福.地壳形变地力学观测与研究[M].北京:海洋出版社,1993.
[4]P.梅尔基奥尔.行星地球的固体潮[M].北京:科学出版社,1984.
[5]中国地震局.地震几前兆数字观测技术规范[S],北京:地震出版社,2001.
[6]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):40-46.
[7]陆明勇,黄辅琼,周峥嵘,等.地壳形变与地下水异常关系研究进展[J].大地测量与地球动力学,2004,24(3):98.
[8]陆明勇,黄辅琼,刘华,等.地壳变形与地下水相互作用及其异常关系初探[J].地震,2005,25(1):67-73.
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