关岛地磁转换函数的变化  

Time changes in geomagnetic transfer functions of Guam Magnetic Observatory Revisited

作　　者：陈伯舫[1] 

机构地区：[1]中国香港大学物理系

出　　处：《地震地磁观测与研究》1998年第6期1-5,共5页Seismological and Geomagnetic Observation and Research

摘　　要：分析了１９９０～１９９５年关岛地磁台１ｍｉｎ值资料，得出转换函数Ａｕ的时间变化与关岛１９９３年８月大地震似乎有一定的关系，考虑到地磁转换函数的地方时效应，文中还对分析结果的可靠性作了一些评估。A strong earthquake of magnitude 8 1 occurred on August 8,1993 near Guam island.The distance between the epicenter and the Guam magnetic observatory is 76 km,and the focal depth is 71 km.This paper discussed the time changes in geomagnetic transfer functions which might be related to the occurrence of the great Guam earthquake.The local time effect of geomagnetic transfer functions has been taken into account in evaluating the reliability of the results.

关 键 词：关岛大地震 地磁转换函数 地震 感应磁效应 

分 类 号：P318.5[天文地球—固体地球物理学]