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丽江7.0级地震地表破裂与形变特征
引用本文:张建国 周瑞琦. 丽江7.0级地震地表破裂与形变特征[J]. 地震研究, 1997, 20(1): 58-65
作者姓名:张建国 周瑞琦
作者单位:云南省地震局
摘    要:丽江7.0级地震序列发生在该地区属次级构造的断裂上,而且这次地震的烈度分布,地表破坏分布和强余震分布都表现了异常不均匀性。根据大震震害损失评估调查和大震现场地面破坏调查取得的资料,对上述异常现象的原因进行了初步分析,认为主震发震构造为玉龙山山前近南北向断裂,但其破裂过程可能存在“跳跃”和偏转。

关 键 词:地震 地表破裂 形变特征 断层

THE CHARACTERISTICS OF SURFACE RUPTURE AND DEFORMATION FOR THE M 7 0 LIJIANG EARTHQUAKE
Zhang Jianguo,Zhou Ruiqi,Wu Baiqian and Zhou Guangquan. THE CHARACTERISTICS OF SURFACE RUPTURE AND DEFORMATION FOR THE M 7 0 LIJIANG EARTHQUAKE[J]. Journal of Seismological Research, 1997, 20(1): 58-65
Authors:Zhang Jianguo  Zhou Ruiqi  Wu Baiqian  Zhou Guangquan
Abstract:The seismic sequence of the M 7 0 Lijiang earthquake occurred in the second-order fault in this area, and all the distributions of the intensity, surface damage and strong aftershocks display abormal inhomogeneity.The preliminary analysis of these abnormal phenomena has been made on the basis of the data from the evaluation and survey of the earthquake damage and the survey of the surface damage for the earthquake on the spot.The authous think that the seismogenic structure of the mainshock is the piedmont fault in near NS in Yulong mountin, but skipping and deflection may have occurred in the rupture process.
Keywords:Surface damage   deformation analysis  inhomogeneity   M 7 0 Lijiang earthquake  Yunnan  
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