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Volume 45 Issue 2
Mar.  2023
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Article Navigation >  Acta Seismologica Sinica  > 2023  >  45(2): 341-355
Fu G C，Pan H，Chen J，Zheng L F. 2023. Probability hazard analysis of potential earthquake-induced landslide：A case study of Longxian County， Shaanxi Province. Acta Seismologica Sinica，45（2）：341−355 doi: 10.11939/jass.20210147
Citation: Fu G C，Pan H，Chen J，Zheng L F. 2023. Probability hazard analysis of potential earthquake-induced landslide：A case study of Longxian County， Shaanxi Province. Acta Seismologica Sinica，45（2）：341−355 doi: 10.11939/jass.20210147
shu

Probability hazard analysis of potential earthquake-induced landslide：A case study of Longxian County， Shaanxi Province

doi: 10.11939/jass.20210147
  • 1.

    Institute of Geophysics，China Earthquake Administration，Beijng 100081，China

  • 2.

    Beijng Earthquake Agency，Beijng 100080，China

  • Received Date: 2021-09-08
  • Rev Recd Date: 2021-11-19
    • Available Online: 2023-01-03
  • Publish Date: 2023-03-15
    Abstract
  • In this paper, the potential focal area division scheme of the Fifth Generation Seismic Parameter Zoning Map of China combined with the Newmark displacement model is adopted. And according to the engineering geological lithology and topographic elevation data of Longxian, the amplification effect of topography on ground motion and the uncertainty of parameters of Newmark model are also considered. Above all, the instability probability of landslide in Longxian county, Shaanxi Province is given on the condition that the earthquake incidence rate is 10% in 50 years. According to the results, potential earthquake-induced landslide in the study area can be divided into four grades: the very low risk area, the low risk areas, the medium risk areas and the high risk areas. And the high risk areas are mainly concentrated in the mudstone, siltstone and loess covered areas with a slope of more than 40° in Longxian. Among them, Qianhe river and some areas on both sides of Tongguanhe river have higher seismic landslide risk. The results can provide a reference for seismic landslide risk management and land planning in this area.

     

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