摘要
本文介绍了姑咱FSO型倾斜仪的观测条件和精度。同时,利用日均值矢量、一阶差分和契氏拟合残差计算表明,姑咱倾斜在1988、1989年的四川道孚八美、巴塘、小金和石棉强震前都出现了不同程度的前兆异常反应。
The observational condition and accuracy of FSQ tiltmeter in Guza area are introduced in this pa- (?)er. Through the calculation of daily mean vector, first order difference and residual error of fit, it is ndicated that the precursory anomalies in different extents appeared in tilting observations in Guza (?)rea before Bamei, Daofu earthquake, Batang earthquake, Xiaojing earthquake and Shimian earth- quake in 1988, 1989.
出处
《四川地震》
1991年第2期43-47,共5页
Earthquake Research in Sichuan
