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。
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 tehmeter in Qianxian, Xi＇ an, Baoji and Hanzhong stations was evidently increasing; 2） nomenon appeared in the NS direction data of water tube 1 day before the earthquake occurred, The distortion phetiltmeter at Qianxian and Xi＇ an stations.
出处
《大地测量与地球动力学》
CSCD
北大核心
2008年第6期56-60,共5页
Journal of Geodesy and Geodynamics
基金
国家质检公益性行业科研专项(10-215)
地震公益性行业科研专项(200808033)
关键词
地倾斜
潮汐因子
畸变
异常现象
汶川地震
ground tilt
tidal facior
distortion
abnormal phenomenon
Wenchuan earthquake
