地震地电阻率前兆异常特征及其机理研究  

A STUDY OF THE PRECURSORY ANOMALOUS CHARACTERISTIC OF SEISMIC EARTH RESISTIVITY AND ITS MECHANISM

作　　者：王志贤[1] 汪志亮[2] 赵成达[2] 余素荣[2] 彭远黔[1] 

机构地区：[1]河北省地震局 [2]国家地震局分析预报中心

出　　处：《华北地震科学》1993年第2期75-82,共8页North China Earthquake Sciences

摘　　要：本文在全面整理我国大陆二十余年来的地电阻率观测资料的基础上,分析了地电阻率前兆异常特征及其与地震三要素之间的关系,给出地震强度(震级)与异常时间和震中距乘积的对数呈线性关系的实用结果,研究了不同类型地震地电阻率短临前兆特征及其在地震预报中的应用,探讨了地电阻率前兆变化的机理。This paper, basing on the observational data of earth resistivity in more than 20 years on the Chinese continent, analyzes the relation between the precursory anomalous characteristic of earth resistivity and the earthquake's three elements; presents a practical result in which the earthquake strength shows a linear relation with the logarithm of product of anomaly duration and epicentral distance; studies different kinds of short term and imminent precursory characteristics of seismic earth resistivity and their applicastion in earthquake prediction, discusses the precursory variation mechanism of earth resistivity.

关 键 词：地电阻率 异常特征 机理研究 地震 

分 类 号：P315.7[天文地球—地震学]