宁波台水氡、水位在汶川8.0、日本9.0级地震中异常现象分析  

ANALYSIS ON ANOMALIES OF WATER LEVEL AND WATER RADON IN NINGBO STATION BEFORE AND AFTER WENCHUAN EARTHQUAKE WITH M_S8.0 AND JAPAN EARTHQUAKE WITH M_S9.0

作　　者：邱永平[1,2] 

机构地区：[1]浙江省宁波地震台,浙江宁波315029 [2]浙江省地震监测预报研究中心流体观测实验室,浙江宁波315029

出　　处：《内陆地震》2013年第1期15-19,共5页Inland Earthquake

摘　　要：宁波台ZK03井水氡在汶川8.0和日本9.0级地震前后出现的异常,可能是这两次地震的前兆异常和震后效应,并且出现的异常有较多相似之处。从水氡五日均值曲线来看,震前11个月开始就出现了异常,五日均值最大异常量都出现在异常结束前5个月,形成了一个"V"字形的中短期低值异常形态。同井观测的动水位同震响应也较相似,说明这两次地震波传播中对该井的水动力作用基本相同,因此也可能会出现相似的水氡中短期异常现象。Anomalies of water radon have something in common appeared before and after Wenchuan earthquake with Ms8.0 and Japan earthquake with Ms9.0 in Ningbo station, We consider them as precursor anomaly and post seismic effect. The anomalies of water radon appeared eleven months before the earthquakes and formed a ＂V＂ type middle and short term anomaly. The post seismic effect of dynamic water level is similar to water radon which means the hydrodynamic action of these earthquakes is almost the same and water radon may also appears similar middle and short term anomaly.

关 键 词：水氡异常 水位异常 汶川8 0级地震 日本9 0级地震 宁波地震台 

分 类 号：P315.7[天文地球—地震学]