Abstract
ABSTRACT This paper focuses on developing a model for the Indian region to simulate ground motion using the spectral element method. The topography, bathymetry, and the 3-dimensional material properties are available in the global database are considered for the region. The simulated model is validated by generating ground motions for the Nepal earthquake, April 25, 2015, which is one of the most devastating earthquakes in recent years, with a magnitude of 7.9 Mw. These waveforms of the earthquake’s main shock and aftershocks are well recorded by the instruments available in the region. The uncertainty of the source is addressed by considering three slip models from global database. The simulated results are shown to be satisfactory when compared with recorded ground motions. The goodness-of-fit score is calculated for the synthetic ground motions, followed by the comparison with global ground motion models. The results achieve a scored of more than four, indicating a fair fit for ground motions. Furthermore, the developed in this study can be used for the generate time histories, which is useful for hazard analysis.
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