Fig. 11
From: Visualizing heterogeneities of earthquake hypocenter catalogs: modeling, analysis, and compensation
Examples of spatial detection rate analysis of aftershocks. Estimated surfaces for earthquakes shallower than 65 km detected by the JMA network 1 day after the 2011 M9 Tohoku-Oki earthquake. Earthquakes are shown as green and red dots. a b values with contour interval 0.05, b μ value (magnitude with 50% detection rate) with contour interval 0.05, c σ value with contour interval 0.01, and d–f 97.5% detection rate of M 2.0, M 3.0, and M 4.0 earthquakes, respectively, with contour interval 0.1 (10%)