| Zone 1 | Zone 2 | Zone 3 | |
 Fracture frequency |
High (subhorizontal - horizontal | Low | High (subvertical) |
| Deformability of matrix |
Relatively small | Relatively large | Relatively small |
| Anisotropy of mechanical properties of rock matrix |
Relatively small | Relatively large | Relatively small |
Figure 4.65 Rock mechanics conceptual model of hanging wall of Tsukiyoshi Fault