Current status of palaeoseismology in India - An overview

Paleoseismic investigations so far carried out in India are spread over two tectonically distinct areas, viz., the interplate seismic zone of Himalaya and the intraplate Stable Continental Region (SCR). Most of the reported p aleoseismicity studies provided geological evidences like soft sediment def ormation, paleoliquefaction features (like sand dykes, sand blows etc), sma ll scale folding, faulting with displacement of beds etc. Though the evalua tion of recurrence period of destructive seismic events is a pre-requisite for paleoseismology, no paleoseismic study in India so far has provided inf ormation on the recurrence period, except for the detailed study in the Shi llong plateau, which suggested recurrence period of 400-600 yrs for major e arthquakes.