Stochastic Finite Fault Modeling of Subduction Zone Earthquakes in Northeastern India |
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| Authors: | S T G Raghu Kanth B Kavitha |
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| Institution: | 1. Indian Institute of Technology Madras, Chennai, India
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| Abstract: | In this article, a stochastic finite fault source model is calibrated to estimate ground motion in northeastern India for intermediate depth events originating in the Indo-Burmese tectonic domain. A total of 47 three-component accelerograms from eight events with magnitudes ranging from M w 4.8–6.4 are used to estimate the input source and site parameters of the finite fault source model. Key seismic parameters such as stress drop (Δσ) and site amplification function are determined from the recorded strong motion data. The obtained stress drop of the eight recorded events lies in between 105 and 165 bars. |
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