Fig. 3
From: High-resolution 3D earthquake forecasting beneath the greater Tokyo area
Colored particles at the 3D Delaunay tessellation vertices, which were derived from all earthquakes of M ≥ 4 and additionally located points. The top surface, with map features, corresponds to that of Fig. 1b. The depth scale is exaggerated. The colors indicate either snapshots of predicted occurrence rates, from Eq. (3) at some time t, or inverted solutions of location-dependent parameters of the Eq. 4 space–time model