【摘要】 自2012年7月21日18时起,徐州地震台体应变和分量应变同时出现较大异常变化,分析认为,此变化由距该地震台700 m处泰山新打水井抽水干扰所致,不是地震前兆异常。更多还原

【Abstract】 After 18 pm on July 21,2012,the body strain and the borehole strain at Xuzhou Seismic Station appear larger change,this change attracted us and the relevant department’s attention.After a lot of hard work,we found out that the anomaly is cased by pumping water in a new well about 700 m away from our station.And we found out that the pumping water at two wells with different distances make different effect to our body strain.更多还原