Fig. 7
From: High-resolution 3D earthquake forecasting beneath the greater Tokyo area
Snapshots of occurrence rates of M ≥ 4 earthquake near the cross-sectional surfaces in the Kanto volume: plane at 10-km depth (a–c) and 20-km depth (d–f), and the upper surfaces of the Pacific Plate (g–i) and the Philippine Sea Plate (j–l). The columns show the dates of 2009.11.01, 2012.05.01 and 2018.06.30, respectively. The units of the color legend are event/day/deg3 for M ≥ 4 earthquakes; and the black thin contour interval is 1.0 in the natural logarithmic scale; about three times as large as the linear scale