Guwahati is fast emerging as a multi-ethnic cosmopolitan city with a burgeoning population and rapid unplanned urbanization. It is a commercial hub, catering to eight states in northeast India. The city is located in the lower Brahmaputra Valley and underlain by thick alluvial deposits ranging from 25 to 600 m with granitic exposure at places. The regional seismotectonics of northeast India exhibit a rather large potential for high-magnitude earthquakes, as reported by Thingbaijam et al. (2008). Large earthquakes in the past caused widespread damage to life and property in this terrain. Presently, the urban agglomeration in this area...

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