Shreyasvi, C.Chopra, S.Venkataramana, K.2026-02-082021World Conference on Earthquake Engineering proceedings, 2021, Vol.2021, , p. -https://doi.org/10.1063/5.0292140https://idr.nitk.ac.in/handle/123456789/33772The common practice in seismic site response simulation is to use the ground motion records consistent with the tectonic regime. In other words, for sites located in a stable continental region, ground motions recorded in a region with the same tectonic setup is used in computing the site response. In the present study, an attempt has been made to test the applicability of different ground motions in the simulation of local site response for a stable continental region. The numerical study was performed by using 140 ground motions recorded in stable continental areas and 150 ground motions recorded in active areas. The earthquake events with magnitude in the range of M<inf>W</inf> 5-8 and distance 1-300km (active) and 1-500km (stable) were chosen. The magnitude range was further categorized into various magnitude bins with a variation of 0.5 and distance bins with a variation of 50km. The ground motions were selected in such a way that there exist at least 5-7 ground motions in each combination of the magnitude and the distance bin and recorded at a site with V<inf>S</inf> > 760ms-1. The soil profile was chosen from Gandhinagar, Gujarat, Western India, which is an intraplate region. The seismic site response of this site was studied in the form of predominant period and the amplification. The variation of these parameters in different scenarios was evaluated. The spectral amplification observed for ground motions from both the tectonic regimes has been compared. The results reveal that the predominant frequency of the soil deposit varies between 0.3-0.4s depending on the induced strain by the input motion. Also, the difference in the performance of the soil deposits to the ground motions is evident in the amplitude. Overall, the present study is an attempt to address the merits and demerits of using ground motions of the active tectonic regime in a stable continental region. © The 17th World Conference on Earthquake Engineering.Amplification factorGround response simulationIntraplate regionPredominant site period