Figure 14From: Multiple damage zone structure of an exhumed seismogenic megasplay fault in a subduction zone - a study from the Nobeoka Thrust Drilling Project Relationship between fracture density and physical properties in the hanging wall and footwall. Relationship between fracture density (number of fractures per 1Â m) and resistivity, P-wave velocity, S-wave velocity, porosity, and density for the surrounding damage zones (sdz) in the hanging wall and footwall. Note that below a fracture density of 20 (per 1Â m), the resistivity, P-wave velocity, density, and S-wave velocity decrease with an increase in structures, implying strain-weakening. However, above a fracture density of 20 (per 1Â m) (colored red), these properties increase with an increase in structures, indicating strain-hardening.Back to article page