In most cases, a seismic hazard analysis is carried out for a location in an active seismicity region. In a low-to-moderate region like East Malaysia, such an examination is rarely carried out. The seismic hazard analysis procedure necessitates the application of a suitable ground motion prediction equation, or GMPE, to estimate ground motion intensity. The research calculates peak ground acceleration (PGA) as a function of earthquake magnitude and distance. The characteristics of low-to-moderate databases were employed in this study, and horizontal PGA was calculated using regression analysis. Ground motions recorded from shallow to deep strike slip earthquakes are used to create an acceptable GMPE design for East Malaysia. Furthermore, earthquake data is based on real-world data collected over a wide variety of magnitudes and distances. By using probabilistic seismic hazard analysis, the novel equation is applied to predict the PGA value in East Malaysia (PSHA). PSHA is a probabilistic approach for analysing seismic hazard assessment, taking into account the uncertainty in earthquake size, location, and rate of occurrence, as well as variations in ground motion characteristics. GMPE has gotten more reliable as more earthquake databases have been collected. For low-to-moderate earthquakes at a long distance, the GMPE of peak ground acceleration was shown to be logarithmically distributed. The equation makes it simple to implement and evaluate physical parameters with similar standard deviations.
Author (s) DetailsNoor Sheena Herayani Harith
Faculty of Engineering, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia Natural Disaster Research Centre (NDRC), Faculty of Science and Natural Resources, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia.
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