Fig. 4

Calculated density contrast model projected on the hypothetical fault surface model. The hypothetical fault surface model was created from the analysis of teleseismic waveform data for the 2016 Kumamoto earthquake (Yagi et al. 2016). Yellow contours represent the modeled slip distribution along the fault, in meters (Yagi et al. 2016). Yellow star indicates the mainshock hypocenter determined by the JMA. Aftershocks that occurred in the first 3 days after the mainshock within 3 km of the imaginary fault plane are plotted as green crosses. The shaded gray area is outside the modeled zone. Density distributions are plotted using linear interpolation