节点文献
台湾海峡地震定点形变的异常分析
Analysis on Anomaly of Fixed Deformation Data in Taiwan Strait Earthquake
【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。
【Abstract】 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.
【关键词】 定点形变测量;
地形变异常;
水平摆;
9.16海峡地震;
【Key words】 9.16 strait earthquake; Deformation anomaly; Horizontal pendulum tiltmeter;
【Key words】 9.16 strait earthquake; Deformation anomaly; Horizontal pendulum tiltmeter;
【基金】 福建省地震局科研项目基金
- 【文献出处】 华南地震 ,South China Journal of Seismology , 编辑部邮箱 ,2009年01期
- 【分类号】P315
- 【被引频次】1
- 【下载频次】39