地磁转换函数与汶川大地震关系的初步研究

英文篇名：Study on the Relationship Between the Wenchuan Strong Earthquake and the Geomagnetic Transfer Function
中文刊名：国际地震动态
英文刊名：Recent Developments in World Seismology
作者：袁宝珠 ; 陈化然 ; 张素琴 ; 李琪 ; 杨冬梅 ; 朱荣 ; 刘晓灿
英文作者：Yuan Baozhu1) ; Chen Huaran2) ; Zhang Suqin2) ; Li Qi2) ; Yang Dongmei2) ; Zhu Rong2) and Liu Xiaocan2) 1) Earthquake Administration of Hefei City ; Hefei 230001 ; China 2) Institute of Geophysics of CEA ; Beijing 100081 ; China
中文关键词：地磁台 ; 汶川地震 ; 地磁转换函数 ; 地震预测
英文关键词：geomagnetic stations ; Wenchuan earthquake ; geomagnetic transfer function ; earthquake forecasting
出版日期：2009-07-25
机构：合肥市地震局;中国地震局地球物理研究所;
年：2009
期：07
出版单位：国际地震动态

摘要

地磁场转换函数在强震前会发生变化,这已被广泛公认。利用汶川周围9个"十五"建设的地磁台站分钟值数字记录数据,分析和研究了汶川地震前的地磁转换函数变化特征,结果表明:汶川地震的发生与周边台站地磁转换函数异常的关系是明显的,地磁短周期转换函数方法是一种物理意义明确、并有一定预报效能的好方法。
The variation of transfer function in the geomagnetic field before strong earthquake has been widely recognized.In this work,by use of the minute value data recorded at nine geomagnetic stations around Wenchuan,we analyze the pre-seismic characteristics of the transfer function.The result indicate that there is a close relationship between the occurrence of Wenchuan earthquake and the abnormal variations of geomagnetic transfer function in the neighboring stations.It is confirmed that short period geomagnetic transfer function with a clear physical meaning is a useful method in earthquake forecasting.

引文

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