NDLI: Regional ground motion simulation around Delhi due to future large earthquake

Content Provider	Springer Nature Link
Author	Jayalakshmi, S. Raghukanth, S. T. G.
Copyright Year	2016
Abstract	The seismic activity in the capital city of Delhi is a matter of concern in the design and safety of numerous infrastructure facilities such as buildings, pipelines, railway lines and heritage structures. The city is continuously exposed to several small and large earthquakes due to local and Himalayan earthquake sources. Determination of ground motion in this region is an important problem for engineers to estimate hazard due to future damaging earthquakes. This article discusses the application of the spectral finite element method to simulate ground motion time histories in and around Delhi for regional earthquakes. The regional ground motions are obtained using the SPECFEM3D Globe package considering the effect of topography, bathymetry and three-dimensional variations of material properties and ellipticity of the Earth. The method is demonstrated for two local earthquakes near Delhi by comparing the peak amplitudes, arrival times and duration of the simulated time histories with the available strong motion records. Further, a hypothetical large earthquake is assumed in the epicentral region and ground motions are simulated. The statistics of the obtained peak ground displacements and the contours of permanent ground residual displacements are presented for the epicentral region.
Starting Page	1479
Ending Page	1513
Page Count	35
File Format	PDF
ISSN	0921030X
Journal	Natural Hazards
Volume Number	82
Issue Number	3
e-ISSN	15730840
Language	English
Publisher	Springer Netherlands
Publisher Date	2016-02-23
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ground motion Seismic hazard Spectral finite element method Peak ground displacement Permanent ground residual displacement Natural Hazards Hydrogeology Geophysics/Geodesy Geotechnical Engineering & Applied Earth Sciences Civil Engineering Environmental Management
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science Water Science and Technology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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