Publication Type:

Conference Paper

Source:

Indian Geotechnical Conference (IGC-2010), GEO trendz, IIT Bombay, India (2010)

URL:

http://gndec.ac.in/~igs/ldh/conf/2010/articles/047.pdf

Abstract:

This paper presents the results of seismic hazard analysis of India (6°–38°N and 68°–98°E) based on the deterministic approach using logic tree approach with different source models and attenuation relations. The earthquake data obtained from different sources were declustered to remove the dependent events and a total of 51347 earthquakes of moment magnitude 4 and above were obtained from the study area. The sesismotectonic map of the study area was prepared by considering the faults, lineaments and the shear zones in the study area which are associated with earthquakes of magnitude 4 and above. For assessing the seismic hazard, the study area was divided into small grids of size 0.1°×0.1°, and the hazard parameters were calculated at the center of each of these grid cells by considering all the seismic sources within a radius of 300 km. Rock level peak horizontal acceleration (PHA) have been calculated for all the grid points and the contour maps showing the spatial variation of these values are presented here. The peak ground acceleration (PGA) at surface level was calculated for the entire India for four different site classes

Cite this Research Publication

T. G. Sitharam, Dr. Sreevalsa Kolathayar, and S., V. K., “Evaluation of Seismic Hazard for India: Deterministic Approach including Local Site Effects”, in Indian Geotechnical Conference (IGC-2010), GEO trendz, IIT Bombay, India, 2010.

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