Analysis of seismicity in North India

Institute for Information Transmission Problems, RAS, Moscow, Russia

B. Arora, S. Chabak, and N. Kumar

Wadia Institute of Himalayan Geology, Dehradun, India

P. Baidya

India Meteorological Department, New Delhi, India

Abstract

[1]  The geotectonic information on North India region has been processed using GIS (Geographic Information Systems), GeoProcessor for extracting the spatial seismotectonic properties. According to spatial modeling of the principle seismotectonic parameters the region under study can be divided into four zones as Kangra-Chamba, Garhwal-Kumaon, Punjab reentrant and Delhi-Haridwar. The b-value is low (0.5) for the Kangra-Chamba and Garhwal-Kumaon region, which shows that the regions have less capacity to withstand the developing stress. The elliptical region between Main Central thrust (MCT) and Main Boundary Thrust (MBT) are sensitive to the tidal force.

Received 4 June 2008; accepted 10 June 2008; published 18 June 2008.

Keywords: seismicity, tectonics, geographic information systems, Himalaya.

Index Terms: 0500 Computational Geophysics; 0530 Computational Geophysics: Data presentation and visualization; 7230 Seismology: Seismicity and tectonics; 8010 Structural Geology: Fractures and faults.

Citation: Gitis, V., E. Yurkov, B. Arora, S. Chabak, N. Kumar, and P. Baidya (2008), Analysis of seismicity in North India, Russ. J. Earth Sci., 10, ES5002, doi:10.2205/2008ES000303.