Fig. 12

Theoretical estimates of increases in pore fluid pressure due to the Kumamoto earthquake at depths of (a) 5 km, (b) 10 km, and (c) 15 km. The color scales of symbols show overpressure coefficients of upper limits of theoretical increases in pore fluid pressure under the undrained condition (with B = 1). The red circles denote the evaluation points, where we observed significant increases in C after the mainshock. The grey rectangles are the same as in Fig. 8