Fig. 3
From: Overpressurized fluids drive microseismic swarm activity around Mt. Ontake volcano, Japan
Comparison of the latitudinal profiles of pore-fluid pressure fields. The profiles at a 36.05° and a depth of 5 km, b 36.05° and a depth of 7.5 km, c 35.95° and a depth of 5 km, d 35.95° and a depth of 7.5 km, e 35.85° and a depth of 5 km, and f 35.85° and a depth of 7.5 km. The red and blue lines denote the profiles in the present study and those in the study by Terakawa et al. (2013b), respectively. The black and light gray vertical lines represent the estimation errors (the 67% confidence region) of pore-fluid pressures in the present study and those in the study by Terakawa et al. (2013b), respectively. The yellow shaded zones in (c–f) correspond to the region A. The red inverse triangles denote the longitudinal location of the summit of Mt. Ontake