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标题：Investigating the Effects of Earthquakes on Slope Instability:A Case study of Khoye and Salmas
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作者：Manijeh Ghahroudi Tali
期刊名称：Geodynamics Research International Bulletin
电子版ISSN：2345-4997
出版年度：2014
卷号：2
期号：1
页码：12
语种：
出版社：geodynamics Research International Bulletin Online
摘要：Khoye and Salmas provinces are located in seismically mountainous northwestern Iran. Study of causes of mass movements in the region indicated influence of earthquake stimulant. This study was done aimed to determine the effects of earthquake-induced on mass movement's instability in the provinces. The data were used included 1:25000 topographic and land use maps, railway, major faults, earthquake magnitude (Mw) during 1930 to 2008, Local magnitude of earthquake in 2000 (ML) and field work. Research method used in seismic zonation was exponential semi-variogram model with ordinary Kriging. Curvature, slope and distance of the fault variables were prepared respectively Curvature, Slope and Distance functions. Weighted Sum model was used to combine data and the validation was performed by variance analysis. The results were assessed based on railroads as structurally vulnerable. Finally, it was determined that the stimulatory the earthquake effect on the occurrence of mass movements and, especially landslides in slopes of Khoye and Salmas provinces and it increases in areas with the slope greater than 8 degree, the convexity terrain, close proximity to faults and earthquakes more than magnitude 4.