| Earthquake Record | Year | Magnitude (Mw) | Mechanism | Rjb (km) | Rrup (km) | Vs30 (m/s) | Scale Factor |
|---|---|---|---|---|---|---|---|
| Humbolt Bay | 1937 | 5.8 | Strike-Slip | 71.3 | 71.6 | 219.3 | 8.8 |
| Imperial Valley | 1955 | 5.4 | Strike-Slip | 13.8 | 14.9 | 213.4 | 8.5 |
| Lytle Creek | 1970 | 5.3 | Reverse Oblique | 10.7 | 12.1 | 486 | 2.9 |
| Borrego Mtn | 1968 | 6.6 | Strike-Slip | 129.1 | 129.1 | 442.9 | 9.1 |