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On the Poisson process of the Korean earthquakes
Myunghyun Noh 한국지질과학협의회 2016 Geosciences Journal Vol.20 No.6
The Poisson process was tested for the sequence of earthquakes that occurred in and around the Korean Peninsula from 1980 through 2014, inclusive. The earthquake origin parameters by Korea Meteorological Administration (KMA) were used. Two statistical tests were applied: the Pearson’s Chi-square test for the earthquake frequency and the Kolmogorov-Smirnov test for the inter-event time. The two tests consistently showed the existence of mP, the minimum magnitude above which the null hypothesis of the Poisson process could not be rejected. At significance levels of 1, 5, and 10%, the mP was smaller than 2.7 for inland earthquakes and 3.1 for all earthquakes. It was concluded that the sequence of Korean earthquakes follows the Poisson process.