| El-Centro (1940) | Northridge (1994) | Ratio (Fourier Amplitude/FF) (after Kim and Stewart (2003) | |||||||||
| Reference name | Amplitude (m/s2) | Ratio (Fourier Amplitude/FF) calculated from FE | Amplitude (m/s2) | Ratio (Fourier Amplitude/FF) calculated from FE | |||||||
| FF | 1.31 | - | 4.08 | - | - | ||||||
| C 0.5 X 0.5 m | S15-e-1.5m | 2 | 1.53 | 7.8 | 1.91 | 0.998 | |||||
| S12-e-1.2m | 1.83 | 1.40 | 7.4 | 1.81 | 0.998 | ||||||
| S10-e-1m | 1.88 | 1.44 | 6.77 | 1.66 | 0.998 | ||||||
| S7-e-0.7m | 2.18 | 1.66 | 8.29 | 2.03 | 0.998 | ||||||
| S5-e-0.5m | 2.13 | 1.63 | 8.19 | 2.01 | 0.998 | ||||||
| S15-1.3B | 2 | 1.53 | 7.8 | 1.91 | 0.998 | ||||||
| S15-1.5B | 2 | 1.53 | 7.78 | 1.91 | 0.998 | ||||||
| S15-2B | 2.03 | 1.55 | 7.9 | 1.94 | 0.997 | ||||||
| S15-e-2m | 2.02 | 1.54 | 7.88 | 1.93 | 0.998 | ||||||
| S15-e-1.5m | 2 | 1.53 | 7.8 | 1.91 | 0.998 | ||||||
| S15-e-1m | 1.98 | 1.51 | 7.74 | 1.90 | 0.998 | ||||||
| C 0.5 X 1m | S15-e-1.5m | 1.9 | 1.45 | 7.47 | 1.83 | 0.998 | |||||
| S12-e-1.2m | 1.83 | 1.40 | 6.52 | 1.60 | 0.998 | ||||||
| S10-e-1m | 2.25 | 1.72 | 7.93 | 1.94 | 0.998 | ||||||
| S7-e-0.7m | 2.18 | 1.66 | 8.37 | 2.05 | 0.998 | ||||||
| S5-e-0.5m | 2.13 | 1.63 | 8.17 | 2.00 | 0.998 | ||||||
| S15-1.3B | 1.9 | 1.45 | 7.47 | 1.83 | 0.998 | ||||||
| S15-1.5B | 2 | 1.53 | 8.01 | 1.96 | 0.998 | ||||||
| S15-2B | 1.85 | 1.41 | 7.5 | 1.84 | 0.997 | ||||||
| S15-e-2m | 1.91 | 1.46 | 7.53 | 1.85 | 0.998 | ||||||
| S15-e-1.5m | 1.9 | 1.45 | 7.47 | 1.83 | 0.998 | ||||||
| S15-e-1m | 1.89 | 1.44 | 7.42 | 1.82 | 0.998 | ||||||