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- Title
The impact of topography on seismic amplification during the 2005 Kashmir Earthquake.
- Authors
Khan, Saad; der Meijde, Mark van; der Werff, Harald van; Shafique, Muhammad
- Abstract
Ground surface topography influence the spatial distribution of earthquake induced ground shaking. This study shows the influence of topography on seismic amplification during the 2005 Kashmir earthquake. Earth surface topography scatters and reflects seismic waves, which causes spatial variation in seismic response. We perform a 3D simulation of the 2005 Kashmir earthquake in Muzaffarabad with spectral finite element method. The moment tensor solution of the 2005 Kashmir 5 earthquake is used as the seismic source. Our results show amplification of seismic response on ridges and de-amplification in valleys. It is found that slopes facing away from the source receive an amplified seismic response, and that 98% of the highly damaged areas are located in the topographically amplified seismic response zone.
- Subjects
SEISMIC response; SPECTRAL element method; SEISMIC wave scattering; SURFACE scattering; FINITE element method; TOPOGRAPHY
- Publication
Natural Hazards & Earth System Sciences Discussions, 2019, p1
- ISSN
2195-9269
- Publication type
Article
- DOI
10.5194/nhess-2019-13