| Summary: | 碩士 === 國立中央大學 === 土木工程研究所 === 95 === Relative Intensity (RI) shows the intensity of earthquake that had happened in a space. RI is estimated by dividing the number of epicenters on the map within a specific period by the number of earthquakes occurred at those epicenters. The main idea is that those places with abnormal RI indexes may be the most probable places at which strong earthquakes occur in the future. Therefore, a place would be considered a dangerous area if its Relative Intensity (RI) surpasses the security critical point. This thesis focuses on the stability of RI and elaborates on the stability of RI through different layer depths, net sizes, time periods, and security critical points.
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