福建省流体台网井水位的同震效应及其地震预测意义  

Study on coseismic effects of water level as observed by Fujian well network and its implication to earthquake prediction

作　　者：廖丽霞[1] 王玫玲[1] 吴绍祖 

机构地区：[1]福建省地震局,中国福州350003

出　　处：《地震学报》2009年第4期432-441,共10页Acta Seismologica Sinica

基　　金："十一五"国家科技支撑计划(2006BAC01B02-03-02;2006BAC01B02-03-03)项目;福建省地震局科研项目基金(200801)资助

摘　　要：2008年5月12日四川省汶川MS8.0地震在全国引起了大范围的同震及震后效应,能否将这些信息应用于地震预报,为震情判断提供依据?本文以福建流体台网井水位为例,将同震效应时空展布特征结合福建区域同期发生的地震事件进行分析,认为震后阶跃上升变化的水井水位可能包含有区域应力场信息,水位阶跃上升集中区可能是区域应力相对集中区,对未来该区域发生较显著的地震具有空间上的指示意义,可能就是未来的发震危险区.By analyzing spatio-temporal variation of coseismic water level re- sponse induced by far earthquakes as observed by Fujian water well network and comparing the variation with the earthquakes occurred in Fujian region, this paper pointed out that the stepwise rising of water level after far earthquakes may include some regional stress information： the area with much water level rising observations may be the region with stress concentration, and may also be an indication that middle-earthquakes would occur in future in such region.

关 键 词：地下流体观测台网 井水位 同震效应 时空展布特征 水震波 

分 类 号：P315.723[天文地球—地震学]