Ground motion scenario for hypothetical earthquake (Mw 8.1) in indo-burmese subduction at imphal city

Abstract

In this paper, variation of ground motion for Imphal city with respect to synthetically generated 10 samples of earthquake (Mw 8.1) that occurred in Indo-Burmese subduction zone (very near to Imphal) is presented based on finite-fault seismological model combined with equivalent linear site response analyses. For all 10 sample earthquake events, mean and standard deviation of surface level spectral ground acceleration at peak ground acceleration (PGA) and natural periods of 0.3 and 1 s have been reported in the form of contour maps. These maps can be used as first hand information for administration, engineers, and planners to identify vulnerable areas of Imphal city.