【摘要】 对陕西省定点形变资料进行处理时发现,在汶川8级地震前形变资料出现异常现象:1)震前3个月,乾县、西安、宝鸡和汉中台的水平摆和水管仪资料,潮汐因子γ值明显增大;2)临震前1天,乾县和西安台的水管仪NS分量资料,出现畸变等。更多还原

【Abstract】 When processing the fixed deformation data of Shanxi province,it is found that the abnomal phenomenon appeared before Wenchuan Ms8.0 earthquake,which are as follows.1)3 months before the earthquake occurred,the tilt tidal factor γ value of quartz horizontal pendulum and water tube teltmeter in Qianxian,Xi’an,Baoji and Hanzhong stations was evidently increasing;2)1 day before the earthquake occurred,The distortion phenomenon appeared in the NS direction data of water tube tiltmeter at Qianxian and Xi’an stations.更多还原