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.
References
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