非潮汐变形中地震信息的检测  

DETECTION FOR EARTHQUAKE PRECURSORS FROM THE OBSERVED NON-TIDAL DEFORMATIONS

作　　者：牛安福[1] 李旭东[1] 吴静[1] 柯丽君[1] 

机构地区：[1]国家地震局地震研究所

出　　处：《地壳形变与地震》1998年第1期46-51,共6页Crustal Deformation and Earthquake

基　　金：国家地震局‘九五’重点攻关项目

摘　　要：根据过程的线性与非线性、平稳与非平稳、确定与随机等特征，讨论了非潮汐变形的非稳态模型和异常的幅度与频度特征，运用Ｆ检验和动态场分析系统理论，对异常的合成、定量化及识别准则进行了研究。所提出的新的“异常”概念包含了动态过程的幅度和频度信息。结果表明，异常出现后，在一定区域范围和时间段，绝大多数情况下伴有地震或震群发生。he non-steady model and the characters of amplitude and frequency of non-tidal deformations are discussed through liner and nonliner, stable and unstable, determined and stochastic processes. By using F -detection and dynamics, the composition, quantity and criterion of anomalies are studied.It is demonstrated that the qantited concept of “anomaly” involves the amplitude and frequency information of observed deformations, and larger earthquake or earthquake cluster may correspond with the anomaly in majority.

关 键 词：非潮汐变形 AF异常 地震前兆 地震信息 

分 类 号：P315.7[天文地球—地震学]