| USGS National-Strong Motion Program | |||||||||||||||||
| Preliminary Corrected Peak Ground Acceleration and Velocity and Pseudo-Spectral Acceleration Values for | |||||||||||||||||
| December 28, 2008, Mexicali, Baja California, Mexico Earthquake (posted 12/29/2008) | |||||||||||||||||
| Mw 4.2, 12/28/2008, 05:17 UTC, 12/27/2008, 09:17 PM PST, 32.568 N, 115.543 W, 10.0 km depth, Regional Network ID# ci10368325 | |||||||||||||||||
| Sta | Inst | Inst | State: City; Recorder Location | Owner | Lat | Lon | Dist | Az | Ch | Sensor | Orient | PGA | PGV | PSA at: | |||
| Code | type | S/N | deg | deg | km | deg | No | type | deg | cm/s/s | cm/s | 0.3 s | 1.0 s | 3.0 s | |||
| 5053 | K2 | 529 | CA:Calexico; Fire Station | USGS | 32.6695 | -115.4925 | 12.2 | 23 | 1 | FBA-2g | 360 | 42.2 | 1.66 | 6.00 | 1.310 | 0.0952 | |
| 2 | FBA-2g | UP | -16.2 | 0.45 | 1.53 | 0.167 | 0.0215 | ||||||||||
| 3 | FBA-2g | 90 | 31.6 | 0.94 | 3.48 | 0.632 | 0.0583 | ||||||||||
| 5058 | Etna | 2010 | CA:El Centro;Array 11, McCabe School | USGS | 32.752 | -115.594 | 21.0 | 347 | 1 | EpiSen | 90 | 22.0 | 1.34 | 4.32 | 1.010 | 0.0677 | |
| ch2 has complex baseline offset | 2 | EpiSen | 360 | ||||||||||||||
| 3 | EpiSen | UP | -6.0 | -0.17 | 0.56 | 0.209 | 0.0147 | ||||||||||
| 412 | K2 | 589 | CA:El Centro;Array 10, Regional Hospital | USGS | 32.781 | -115.568 | 23.7 | 354 | 1 | FBA-2g | 230 | -26.4 | -0.96 | 2.37 | 0.703 | 0.0440 | |
| 2 | FBA-2g | UP | -6.3 | -0.11 | 0.43 | 0.137 | 0.0105 | ||||||||||
| 3 | FBA-2g | 320 | -22.5 | 0.93 | 2.86 | 0.556 | 0.0336 | ||||||||||
| 5054 | Etna | 2052 | CA:Bond's Corner; Omlin Residence | USGS | 32.693 | -115.338 | 23.7 | 54 | 1 | EpiSen | 90 | 23.5 | -0.87 | 5.14 | 0.542 | 0.0393 | |
| 2 | EpiSen | 360 | -22.7 | -0.77 | 5.00 | 0.466 | 0.0494 | ||||||||||
| ch3 sensor response is suspect | 3 | EpiSen | UP | ||||||||||||||
| 5055 | Etna | 2037 | CA:Holtville; Post Office | USGS | 32.811 | -115.379 | 31.1 | 30 | 1 | EpiSen | 90 | 6.0 | -0.37 | 1.35 | 0.284 | 0.0273 | |
| 2 | EpiSen | 360 | 3.5 | 0.25 | 0.91 | 0.443 | 0.0275 | ||||||||||
| 3 | EpiSen | UP | 3.4 | -0.13 | 0.45 | 0.073 | 0.0125 | ||||||||||
| 5060 | K2 | 523 | CA:Brawley; Airport Hangar | USGS | 32.9910 | -115.5128 | 47.0 | 3 | 1 | FBA-2g | 360 | -2.8 | -0.12 | 0.49 | 0.182 | 0.0135 | |
| 2 | FBA-2g | UP | 2.9 | 0.08 | 0.16 | 0.042 | 0.0053 | ||||||||||
| 3 | FBA-2g | 90 | -8.4 | 0.24 | 0.73 | 0.166 | 0.0126 | ||||||||||