摘要
2007年7月16日日本发生ML 6.8地震。此次地震前的7月6日,山东泰安台钻孔应变仪观测到异常变化。本文报告了变化情况,同时给出了水位和气压的变化。
A ML 6.8 earthquake took place in middle Japan on July 16,2007.Abnormal strain change was observed prior to this event at Tai'an station in Shandong province.This report describes the abnormal strain change while showing changes in water table and air pressure.