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Earthquake Magnitude Probability and Gamma Distribution
Department of Civil and Environmental Engineering, National University of Kaohsiung, Kaohsiung
Department of Civil Engineering & Research Center for Hazard Mitigation and Prevention, National Central University, Taoyuan
Department of Civil Engineering & Research Center for Hazard Mitigation and Prevention, National Central University, Taoyuan
- 1 Department of Civil and Environmental Engineering, National University of Kaohsiung, Kaohsiung
- 2 Department of Civil Engineering & Research Center for Hazard Mitigation and Prevention, National Central University, Taoyuan
- 3 Department of Civil Engineering & Research Center for Hazard Mitigation and Prevention, National Central University, Taoyuan
International Journal of Geosciences·Volume 14 (2023)·Pages 585–602·Published 24 July 2023·DOI10.4236/ijg.2023.147031
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Abstract
The earthquake magnitude probability distribution is one of the underlying input data for certain earthquake analyses, such as probabilistic seismic hazard analysis. Nowadays, the method proposed by McGuire and Arabasz (1990) is commonly used for obtaining the (simulated) earthquake magnitude probability distributions. However, based on the observed earthquake data in 5 regions (Taiwan, Japan, California, Turkey, and Greece), the model did not fit the observation well. Instead, all of the case studies show that using the newly proposed gamma distribution can improve the simulation significantly compared to the conventional method.
KeywordsEarthquake MagnitudeProbability DistributionGamma Distribution
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