地电阻率短临前兆异常的判定方法研究  

STUDY ON THE DECISION METHOD OF SHORT-TERM AND IMPENDING PRECURSORY ANOMALY OF EARTH RESISTIVITY

作　　者：王志贤[1] 彭远黔[1] 王丽 

机构地区：[1]河北省地震局,中国石家庄050021

出　　处：《地震》1994年第1期88-96,共9页Earthquake

摘　　要：本文用一阶差分和相干加权计算等方法对地电阻率观测资料进行处理,其结果较好地突出了短临前兆异常。进而研究了地电阻率短临前兆变化特征及其短临预报指标,采用归一化方法将地电阻率各异常参量转换为地震前兆信息量,为多种前兆方法进行综合跟踪预报提供了必要的基础资料。In this paper the observational data of earth resistivity are processed with the methods of first order difference and coherent weight. The short-term precursory anomaly is prominent. And the short-term and impending precursory change of earth resistivity and its prediction criterion are also studied. The parameters of earth resistivity anomaly are conversed into the quantity of information of earthquake precursors by means of the nomalization method. Based on studying the characteristics of the tendency anomaly of earth resistivity and the distribution regularity of the quantity of precursory information as well as their relation to the three elements of an earthquake, authors give the quantitative statistical criteria for predicting three elements of an earthquake, which provides the basis for the comprehensive and tracing prediction by using the multiple precursory methods.

关 键 词：地震前兆 地电阻率 短临异常特征 

分 类 号：P315.7[天文地球—地震学]