Relationship between Landslides and Active Normal Faulting in the Epicentral Area of the AD 1556 M～8.5 Huaxian Earthquake,SE Weihe Graben(Central China)

作     者：Gang Rao Yali Cheng Aiming Lin Bing Yan 

作者机构：School of Earth Sciences Zhejiang University Department of Geophysics Graduate School of Science Kyoto University School of Earth Sciences and Engineering Nanjing University 

出 版 物：《Journal of Earth Science》 (地球科学学刊（英文版）)

年 卷 期：2017年第28卷第3期

页      面：545-554页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0708[理学-地球物理学] 0818[工学-地质资源与地质工程] 0704[理学-天文学] 

基　　金：supported by the National Natural Science Foundation of China (No. 41502203) the Scientific Research Foundation for Returned Overseas Scholars of China (awarded to G. Rao) the Natural Science Foundation of Zhejiang Province (No. LY15D02001) a Science Project (No. 23253002)from the Ministry of Education, Culture, Sports, Science and Technology of Japan 

主　　题：landslides active normal faults Huaxian Earthquake Weihe Graben Ordos Block 

摘      要：In this paper, we focus on the characteristics of the landslides developed in the epicentral area of AD 1556 M^8.5 Huaxian Earthquake, and discuss their relations to the active normal faults in the SE Weihe Graben, Central China. The results from analyzing high-resolution remote-sensing imagery and digital elevation models（DEMs）, in combination with field survey, demonstrate that：（i） the landslides observed in the study area range from small-scale debris/rock falls to large-scale rock avalanches;（ii） the landslides are mostly developed upon steep slopes of ≥30°; and（iii） the step-like normal-fault scarps along the range-fronts of the Huashan Mountains as well as the thick loess sediments in the Weinan area may facilitate the occurrence of large landslides. The results presented in this study would be helpful to assess the potential landslide hazards in densely-populated areas affected by active normal faulting.