以倾斜固体潮探测地壳内的应变积累  

Inversion of the Strain Accumulation State in Crustal Interior from Observations of Earth Tide Tilts

作　　者：吴翼麟 李平[1] 陈光齐 李旭东[1] 

机构地区：[1]国家地震局地震研究所

出　　处：《中国地震》1992年第4期62-67,共6页Earthquake Research in China

摘　　要：我国川滇交界区是大地震的多发区,本文利用该区7个基本台多年观测资料,以倾斜固体潮振幅因子γ值采探测地壳内的应变积累。发现该区M_s>5地震事件通常是在γ值出现异常后发生。根据时空立体模型可大致了解应变积累的迁移趋势,从而可对该区未来的大地震地点进行预测。The strain accumulation state in crustal interior and its migration trend can be inversed from observations of earth tide tilts.In China,large earthquakes frequently occur in the border area between Yunnan and Sichuan Provinces. Using the observational data for years from 7 stations in this area, y (the amplitude factor of earth tide tilts)values that characterize the strain accumulation state in crustal interior have been in-versed in this paper. It has been found that, Ms >5 events in the area often occur when y values show an anomaly. Using the collocation timespace stereomodelling the migration trend of strain accumulation can be determined, so as to make a prediction for the probable location of a forthcoming earthquake in the area.

关 键 词：固体潮 振幅因子 应变积累 地壳 

分 类 号：P313.3[天文地球—固体地球物理学]