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Earth, Planets and Space
Fig. 6 | Earth, Planets and Space

Fig. 6

From: Deep crustal structure around the Atotsugawa fault system, central Japan: A weak zone below the seismogenic zone and its role in earthquake generation

Fig. 6

Distribution of (a) P- and (b) S-wave velocity perturbations (in percent). Velocity perturbations are the deviations from the average velocities at each depth calculated for the area shown in this figure. Calculated average velocities are shown in each panel. Red triangles represent active volcanoes, gray lines are active faults, and white circles represent deep low-frequency earthquakes reported by the JMA. The right bottom figure maps regions discussed in the text: AGF, Atotsugawa fault, MSF, Mozumi-Sukenobu fault; UKF, Ushikubi fault.

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