摘要
结合定点形变前兆异常的常用判定标准,用多种数学方法处理了厦门台与漳州台1991~1995年水平摆地倾斜资料,发现在9.16海峡地震之前,两个台站的资料都表现出不同程度的年变规律畸变、γ因子异常、一阶差分法异常、滤波法异常等多种地形变前兆指标异常。
On the basis of the common criteria of deformation anomaly, a variety of mathematical methods were used to analyze the data of horizontal pendulum tiltmeters at Xiamen and Zhangzhou seismostations in 1991-1995. The results indicate that a variety of abnormal terrain precursor indicators of variable degrees existed in the two seismostation data before the 9.16 strait earthquake, namely: (1) the change of distortion; (2) γ factor anomaly; (3) the first-order finite difference method anomaly; (4) filtering method anomaly.
出处
《华南地震》
2009年第1期96-101,共6页
South China Journal of Seismology
基金
福建省地震局科研项目基金