NOTE FOR THE PAPER: A PROPOSAL OF THE SCALING RELATION FOR THE SHORT-PERIOD LEVEL ASSOCIATED WITH THE THREE-STAGE MODEL OF INLAND CRUSTAL EARTHQUAKES

Abstract

To solve the problem of evaluating the area of SMGA data S_SMGA, which was a problem in an examination of the strong motion generation area (SMGA) data in the previous paper (Tohdo et al., 2022), the area S_SMGA was evaluated directly from SMGA data in a mean sense. In this evaluation, S_SMGA was scaled with M₀^2/3, M₀^1/2, and M₀¹ for seismic moment M₀, associated with the three-stage model in the "Recipe" by HERP. The empirical equation for the relationship of M₀-S_SMGA was established by applying the least-squares method to the SMGA data, and the stress drop calculated using this equation and the pre-set empirical equation for the short-period level was constant regardless of M₀ for each stage of the three-stage, and it was confirmed that they were consistent with the SMGA data.