| USGS National-Strong Motion Project | |||||||||||||||||
| Preliminary Corrected Peak Ground Acceleration and Velocity and Pseudo-Spectral Acceleration Values for | |||||||||||||||||
| February 26, 2007, Offshore Northern California, CA Earthquake (posted 03/20/2007; updated 02/09/2009) | |||||||||||||||||
| Mw 5.4, 02/26/2007, 12:19 UTC, 02/26/2007, 04:19 AM PST, 40.642 N, 124.870 W, 0.4 km depth, Regional Network ID# nc40193932 | |||||||||||||||||
| Sta | Inst | Inst | State: City; Recorder Location | Owner | Lat | Lon | Dist | Az | Ch | Sensor | Orient | PGA | PGV | PSA at: | |||
| No | type | S/N | deg | deg | km | deg | No | type | deg | cm/s/s | cm/s | 0.3 s | 1.0 s | 3.0 s | |||
| 1725 | Etna | 2039 | CA:Ferndale; Centerville B&B | USGS | 40.5441 | -124.3544 | 45.0 | 104 | 1 | EpiSen | 90 | -9.9 | 0.451 | 1.94 | 0.773 | 0.1240 | |
| 2 | EpiSen | 360 | 7.4 | -0.501 | 1.52 | 0.758 | 0.1190 | ||||||||||
| 3 | EpiSen | UP | 5.1 | 0.238 | 0.852 | 0.271 | 0.0697 | ||||||||||
| 1023 | Etna | 1990 | CA:Ferndale; Fire Station | USGS | 40.5762 | -124.2637 | 51.9 | 98 | 1 | EpiSen | 90 | 15.9 | -1.140 | 3.88 | 1.360 | 0.1450 | |
| 2 | EpiSen | 360 | -18.5 | 1.480 | 6.86 | 1.600 | 0.1280 | ||||||||||
| 3 | EpiSen | UP | -8.7 | -0.561 | 2.56 | 0.713 | 0.0964 | ||||||||||
| 1586 | Etna | 1993 | CA:Loleta; Fire Station | USGS | 40.6440 | -124.2210 | 54.9 | 90 | 1 | EpiSen | 90 | -11.0 | -0.610 | 2.01 | 0.704 | 0.1090 | |
| 2 | EpiSen | 360 | 11.0 | -0.970 | 2.38 | 1.110 | 0.1550 | ||||||||||
| 3 | EpiSen | UP | -8.1 | 0.282 | 1.33 | 0.286 | 0.0461 | ||||||||||
| 1581 | Etna | 2021 | CA:Eureka; South Bay School | USGS | 40.7350 | -124.2076 | 57.0 | 79 | 1 | EpiSen | 270 | 14.4 | -0.984 | 2.33 | 1.050 | 0.0994 | |
| 2 | EpiSen | 180 | -14.7 | 0.936 | 1.81 | 0.741 | 0.1680 | ||||||||||
| 3 | EpiSen | UP | 5.8 | -0.286 | 1.25 | 0.377 | 0.0675 | ||||||||||
| 1746 | Etna | 2011 | CA:Fortuna; Fire Station | USGS | 40.5891 | -124.1479 | 63.1 | 95 | 1 | EpiSen | 90 | 5.8 | -0.557 | 0.653 | 0.564 | 0.0751 | |
| 2 | EpiSen | 360 | 6.3 | -0.372 | 0.576 | 0.509 | 0.0967 | ||||||||||
| 3 | EpiSen | UP | 3.4 | -0.170 | 0.41 | 0.237 | 0.0488 | ||||||||||
| 1580 | Etna | 2023 | CA:Arcata; Humboldt State Univ | USGS | 40.8741 | -124.0764 | 71.9 | 69 | 1 | EpiSen | 90 | -5.2 | 0.380 | 1.21 | 0.226 | 0.0423 | |
| 2 | EpiSen | 360 | 4.1 | -0.228 | 0.626 | 0.099 | 0.0495 | ||||||||||
| 3 | EpiSen | UP | 1.8 | -0.083 | 0.245 | 0.086 | 0.0201 | ||||||||||