| 地倾斜固体潮所反映的地震之前应变积累异常信息 |
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| 引用本文： | 段华琛. 地倾斜固体潮所反映的地震之前应变积累异常信息[J]. 地球物理学报, 1991, 34(6): 744-752 |
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| 作者姓名： | 段华琛 |
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| 作者单位： | 上海地震局, 上海 200062 |
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| 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M2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.
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| 关 键 词： | 地倾斜固体潮分潮振幅 介质应变变化 应变积累 |
| 收稿时间： | 1988-09-11 |
THE ANOMALY INFORMATION OF STRAIN ACCUMULATION REFLECTED IN TILT CRUSTAL TIDE BEFORE STRONG EARTHQUAKES |
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| DUAN HUA-CHEN. THE ANOMALY INFORMATION OF STRAIN ACCUMULATION REFLECTED IN TILT CRUSTAL TIDE BEFORE STRONG EARTHQUAKES[J]. Chinese Journal of Geophysics, 1991, 34(6): 744-752 |
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| Authors: | DUAN HUA-CHEN |
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| Affiliation: | Shanghai Seismological Bureau, Shanghai 200062 |
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| Abstract: | 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. |
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| Keywords: | Component amplitude of tilt crustal tide Strain variation and accumula-tion of the itermediate. |
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