2.5 Earthquake Sizes vs. Frequencies (Left) Fig.6: Virtual Earthquake sizes vs. Frequencies; Propagation Probability p.p=0.58 (near critical state of 2 dimensional site percolation) Clear linear relations, distinctive Fractal scaling behavior, appear in both the crowd mode and the forest mode, while the solitary mode does not show such character. (Right) Fig.7: Natural Earthquake sizes vs. Frequencies (G-R Law Relation)