DOI: 10.1007/s11069-020-04074-w
论文题名: Scenario-based seismic hazard analysis using spectral element method in northeastern Pakistan
作者: Khan S. ; van der Meijde M. ; van der Werff H. ; Shafique M.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2020
卷: 103, 期: 2 起始页码: 2131
结束页码: 2144
语种: 英语
中文关键词: Muzaffarabad
; Scenario earthquake
; Seismic hazard map
; Spectral element method
; Topographic amplification
英文关键词: earthquake prediction
; ground motion
; hazard assessment
; Kashmir earthquake 2005
; moment tensor
; scenario analysis
; seismic hazard
; seismic response
; seismic wave
; seismic zone
; topography
; Azad Kashmir
; Muzaffarabad
; Pakistan
英文摘要: Seismic hazard analysis is carried out in this study by estimating ground motion for hypothetical earthquakes in the area of Muzaffarabad, Pakistan, with the MT solution of the 2005 Kashmir earthquake. The earth’s topography influences seismic waves by scattering and reflecting it, thereby causing spatial variation in seismic response. Using the moment tensor solution of the 2005 Kashmir earthquake, we perform 25 spectral element method (SEM)-based 3D simulations along major faults in the study area. The SEM model incorporates the topography and homogeneous half-space characteristics. Our results show that, beside topography, the relative location of the source with respect to slopes also has an influence on the observed variation in ground shaking amplitudes. By integrating the mean and standard deviation of estimated ground shaking from 25 simulations, we present a seismic hazard map for the study area. The map summarizes the topographic and potential source location effect on seismic-induced ground shaking in the study area. It provides a classification from hazardous to safe in relative terms and can be used as a guide in earthquake preparedness. © 2020, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168558
Appears in Collections: 气候变化与战略
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作者单位: Department of Geology, Bacha Khan University Charsadda, P.O. Box 20, Charsadda, Khyber Pakhtunkhwa, Pakistan; Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, P.O. Box 217, Enschede, 7500 AE, Netherlands; National Centre of Excellence in Geology (NCEG), University of Peshawar, Peshawar, Khyber Pakhtunkhwa 25120, Pakistan
Recommended Citation:
Khan S.,van der Meijde M.,van der Werff H.,et al. Scenario-based seismic hazard analysis using spectral element method in northeastern Pakistan[J]. Natural Hazards,2020-01-01,103(2)