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松辽盆地几次中强震的构造条件探讨
引用本文:周本刚,高名修.松辽盆地几次中强震的构造条件探讨[J].地震地质,1992,14(2):145-150.
作者姓名:周本刚  高名修
作者单位:国家地震局地质研究所,国家地震局地质研究所 北京 100029,北京 100029
摘    要:第四纪以来,松辽盆地的西部坳陷向东部和南部扩展,形成一系列北东向的次级坳陷,一些中强震便发生在其中一些坳陷的边缘或内部。这些发生中强震的场所在中晚更新世有明显的差异活动,并发育了切割北东向构造的北西向断裂,北东和北西向断裂的交汇区是中强震的发生部位。此外,野外调查结果表明,1119年前郭63/4级地震最有可能发生在卡拉木附近

关 键 词:松辽盆地  坳陷  中晚更新世  差异活动  中强震

THE STRUCTURAL ANALYSIS OF SEVERAL MODERATE-STRONG EARTHQUAKES IN THE SONGLIAO BASIN
Zhou Bengang Gao Mingxiu.THE STRUCTURAL ANALYSIS OF SEVERAL MODERATE-STRONG EARTHQUAKES IN THE SONGLIAO BASIN[J].Seismology and Geology,1992,14(2):145-150.
Authors:Zhou Bengang Gao Mingxiu
Abstract:Several small Quaternary NE-trending depressions exist in the eastern ana soutn-ern Songliao basin due to unequal subsidence.Some of them were conspicuously active in Middle and Late Pleistocene.In or near the edge of these depressions,some moderate-strong shocks occurred in the area where the NW faults cut the NE ones.The NW faults are seismic faults generally.Furthermore,field investigations indicate that the earthquake with magnitude of 63/4 in 1119 occurred near Kalamu.
Keywords:Songliao basin  Depression  Middle and Late Pleistocene  Heterogeneous activity  Moderate-strong earthquake  
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