Fig. 2From: Source parameters and site amplifications estimated by generalized inversion technique: focusing on the 2018 Hokkaido Iburi-Tobu earthquakea Comparison of M0 and fc with the regression line. The regression coefficient is R2 = 0.86, and so, the correlation is quite high. b Stress drops calculated by fc, M0 and VS at the source layer, as the Brun’s stress parameter. c Level A plot together with empirical formula proposed by Satoh (2011). We also show the regression line for the level A of this study. Our regression lines are relatively lower than the others. d Comparison of stress drops and focal depth. It is clearly shown the dependency on the focal depthBack to article page