| Mag | Moment magnitude |
| Dip | Dip angle of rupture plane |
| Width | Down-dip width of rupture plane |
| ZTOR | Depth to top of rupture |
| Rrup | Closest distance to rupture plane |
| Rjb | Joyner-Boore distance to rupture plane |
| Rx | Site coordinate w.r.t. top of rupture |
| Vs30 | Average shear velocity of top 30 m |
| Z1.0 | Depth to Vs=1.0 km/s horizon |
| Z2.5 | Depth to Vs=2.5 km/s horizon |
| Sds | Design Sa parameter at short period |
| Sd1 | Design Sa parameter at 1-sec period |
| TL | Long-period transition period |