摘要
各不同地点地倾斜固体潮分潮振幅变化能反映出局部地区在应力场附加应力作用下所产生的介质应变变化和应变积累.本文通过对泰安台、马陵山台以及余山台地倾斜NS分量资料的调和分析,分别发现M_2分潮振幅值与1983年菏泽地震(5.9级)及1984年南黄海地震(6.2级)有关的震前应变积累异常变化情况.
The component amplitude variations of tilt crustal tide at different places reflect strain variation and accumulation in intermediate under the action of additional stress in stress field of local area. In this paper by means of harmonic analysis in NS component tilt data at Taian, Marlingshan, Sheshan observatories, the previous' anomaly informations of strain accumulations in M2 component amplitudes relative to Heze (Ms = 5.9) earthquake occured in 1983 and to the earthquake in South Yellow sea (Ms=6.2) occured in 1984 are obtained.
出处
《地球物理学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第6期744-752,共9页
Chinese Journal of Geophysics
基金
地震科学联合基金
关键词
地震
前兆
地倾斜
固体潮
Component amplitude of tilt crustal tide, Strain variation and accumula-tion of the itermediate.
