Seismologists often use the surface-wave magnitude Ms (Gutenberg, 1945) to estimate the size of an earthquake and as basis for different types of seismological studies. Those include, among others, earthquake catalogs (e.g., Abe, 1981; Pacheco and Sykes, 1992), magnitude conversion relationships (e.g., Ekstr?m and Dziewonski, 1988; Scordilis, 2006), and tsunami earthquakes (Kanamori, 1972; Jia et al., 2022).
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