| USGS National-Strong Motion Program | |||||||||||||||||
| Preliminary Corrected Peak Ground Acceleration and Velocity and Pseudo-Spectral Acceleration Values for | |||||||||||||||||
| May 18, 2009, Lennox, California Earthquake (posted 05/22/2009) | |||||||||||||||||
| Mw 4.7, 05/18/2009, 03:39 UTC, 05/17/2009, 08:39 PM PDT, 33.937 N, 118.345 W, 15.1 km depth, Regional Network ID# ci10410337 | |||||||||||||||||
| 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 | |||
| 5243 | K2 | 579 | CA:Hawthorne;FAA Bldg | USGS | 33.8954 | -118.3768 | 5.5 | 212 | 1 | FBA-2g | 360 | -137 | 6.07 | 14.3 | 4.02 | 0.402 | |
| 2 | FBA-2g | UP | 53 | 0.99 | 2.9 | 0.42 | 0.054 | ||||||||||
| 3 | FBA-2g | 90 | -119 | -5.64 | 15.3 | 3.23 | 0.212 | ||||||||||
| 5429 | Etna | 2590 | CA:Compton;Cressey Park FS 3 | USGS | 33.9040 | -118.2455 | 9.9 | 112 | 1 | EpiSen | 90 | -157 | -6.16 | 25.8 | 3.49 | 0.333 | |
| 2 | EpiSen | 360 | -207 | 6.84 | 38.0 | 2.53 | 0.183 | ||||||||||
| 3 | EpiSen | UP | 40 | 0.80 | 3.6 | 0.33 | 0.026 | ||||||||||
| 5411 | K2 | 606 | CA:Torrance;Fire Station 1 | USGS | 33.8307 | -118.3289 | 11.9 | 173 | 1 | FBA-2g | 360 | 108 | 4.03 | 15.5 | 1.76 | 0.163 | |
| 2 | FBA-2g | UP | 47 | -0.90 | 3.8 | 0.53 | 0.050 | ||||||||||
| 3 | FBA-2g | 90 | -160 | 7.30 | 36.3 | 1.98 | 0.186 | ||||||||||
| 5477 | K2 | 2508 | CA:LA;300 N Los Angeles Federal Bldg | USGS | 34.0537 | -118.2397 | 16.2 | 37 | |||||||||
| 2nd Floor, S side W corridor | 1 | EpiSen | 128 | 16.7 | -0.55 | 1.6 | 0.48 | 0.074 | |||||||||
| 2nd Floor, S side W corridor | 2 | EpiSen | 38 | 10.7 | 0.59 | 1.4 | 0.53 | 0.088 | |||||||||
| 2nd Floor, N side W corridor | 3 | EpiSen | 128 | 12.3 | 0.56 | 1.5 | 0.48 | 0.070 | |||||||||
| Basement, S side W corridor | 4 | EpiSen | 128 | 12.6 | -0.45 | 1.2 | 0.52 | 0.052 | |||||||||
| Basement, S side W corridor | 5 | EpiSen | 38 | 10.3 | 0.64 | 1.8 | 0.59 | 0.080 | |||||||||
| Sub-basement, NW end (inoperative) | 6 | EpiSen | 128 | ||||||||||||||
| 1st Floor, SW corner | 7 | EpiSen | 128 | -17.7 | -0.59 | 1.8 | 0.55 | 0.054 | |||||||||
| 1st Floor, SW corner | 8 | EpiSen | 38 | 14.7 | 0.72 | 2.0 | 0.59 | 0.080 | |||||||||
| 1st Floor, N end | 9 | EpiSen | 128 | 9.6 | -0.49 | 1.5 | 0.49 | 0.051 | |||||||||
| Sub-basement, S end | 10 | EpiSen | 128 | -13.2 | -0.49 | 1.3 | 0.54 | 0.055 | |||||||||
| Sub-basement, S end | 11 | EpiSen | 38 | -8.4 | 0.59 | 1.7 | 0.59 | 0.080 | |||||||||
| Sub-basement, S end | 12 | EpiSen | UP | 5.6 | 0.12 | 0.5 | 0.13 | 0.025 | |||||||||
| 5477 | K2 | 2509 | CA:LA;300 N Los Angeles Federal Bldg | USGS | 34.0537 | -118.2397 | 16.2 | 37 | |||||||||
| 5th Floor, S side W corridor | 1 | EpiSen | 38 | -7.4 | 0.65 | 1.5 | 0.47 | 0.164 | |||||||||
| 5th Floor, S side W corridor | 2 | EpiSen | 128 | 8.4 | 0.73 | 1.7 | 0.43 | 0.113 | |||||||||
| 5th Floor, N side W corridor | 3 | EpiSen | 128 | 10.7 | 0.72 | 1.7 | 0.42 | 0.109 | |||||||||
| 8th Floor, S side W corridor | 4 | EpiSen | 38 | 7.5 | -1.09 | 1.2 | 1.13 | 0.236 | |||||||||
| 8th Floor, S side W corridor | 5 | EpiSen | 128 | 8.8 | -0.96 | 1.6 | 0.93 | 0.154 | |||||||||
| 8th Floor, N side W corridor | 6 | EpiSen | 128 | -7.4 | -0.83 | 1.4 | 0.90 | 0.154 | |||||||||
| Penthouse, center W side | 7 | EpiSen | 128 | 8.7 | -1.15 | 1.7 | 1.13 | 0.170 | |||||||||
| Penthouse, N end W side | 8 | EpiSen | 128 | -9.8 | 1.03 | 1.9 | 1.08 | 0.167 | |||||||||
| no sensor | 9 | ||||||||||||||||
| Penthouse, S end W side | 10 | EpiSen | 38 | 8.1 | -1.30 | 1.4 | 1.31 | 0.254 | |||||||||
| Penthouse, S end W side | 11 | EpiSen | 128 | 9.3 | -1.06 | 1.9 | 1.14 | 0.170 | |||||||||
| 5449 | K2 | 2437 | CA:Santa Ana; Federal Bldg | USGS | 33.7486 | -117.8750 | 48.3 | 116 | |||||||||
| Basement floor, south | 1 | EpiSen | 90 | 11.9 | -0.83 | 2.8 | 0.83 | 0.057 | |||||||||
| Basement floor, south | 2 | EpiSen | 360 | -10.8 | -0.99 | 3.6 | 0.62 | 0.061 | |||||||||
| Basement floor, south | 3 | EpiSen | UP | -5.2 | 0.21 | 1.4 | 0.26 | 0.016 | |||||||||
| Basement ceiling, west | 4 | EpiSen | 360 | 12.0 | -1.04 | 3.9 | 0.60 | 0.061 | |||||||||
| 1st floor ceiling, west | 5 | EpiSen | 360 | 13.9 | -1.03 | 3.5 | 0.55 | 0.062 | |||||||||
| 3rd floor ceiling, west | 6 | EpiSen | 360 | -17.5 | -1.33 | 6.0 | 0.59 | 0.075 | |||||||||
| Basement ceiling, east | 7 | EpiSen | 360 | -13.8 | -1.14 | 4.6 | 0.61 | 0.063 | |||||||||
| Basement ceiling, east (bad sensor) | 8 | EpiSen | 90 | ||||||||||||||
| 1st floor ceiling, east | 9 | EpiSen | 360 | 17.2 | -1.28 | 5.8 | 0.60 | 0.069 | |||||||||
| 1st floor ceiling, east | 10 | EpiSen | 90 | -23.1 | -1.44 | 6.4 | 0.82 | 0.068 | |||||||||
| 3rd floor ceiling, east | 11 | EpiSen | 360 | -27.1 | 1.56 | 8.9 | 0.82 | 0.091 | |||||||||
| 3rd floor ceiling, east | 12 | EpiSen | 90 | 32.0 | -2.07 | 10.3 | 1.89 | 0.123 | |||||||||
| 5449 | K2 | 2438 | CA:Santa Ana; Federal Bldg | USGS | 33.7486 | -117.8750 | 48.3 | 116 | |||||||||
| 5th floor ceiling, west | 1 | EpiSen | 360 | -17.4 | 1.26 | 6.9 | 1.35 | 0.089 | |||||||||
| 7th floor ceiling, west | 2 | EpiSen | 360 | -8.0 | 0.90 | 1.5 | 2.17 | 0.102 | |||||||||
| 8th floor ceiling, west | 3 | EpiSen | 360 | -14.2 | 1.52 | 4.4 | 2.45 | 0.108 | |||||||||
| 5th floor ceiling, east | 4 | EpiSen | 360 | 24.2 | 1.36 | 8.9 | 1.50 | 0.107 | |||||||||
| 5th floor ceiling, east | 5 | EpiSen | 90 | 23.2 | -1.87 | 8.4 | 3.56 | 0.165 | |||||||||
| 9th floor ceiling, west | 6 | EpiSen | 360 | -23.4 | 2.07 | 7.8 | 2.78 | 0.124 | |||||||||
| 7th floor ceiling, east | 7 | EpiSen | 360 | -9.8 | 1.13 | 2.2 | 2.21 | 0.104 | |||||||||
| 7th floor ceiling, east | 8 | EpiSen | 90 | 18.9 | -2.02 | 2.6 | 4.97 | 0.183 | |||||||||
| 8th floor ceiling, east | 9 | EpiSen | 360 | 19.9 | 1.90 | 5.6 | 2.55 | 0.114 | |||||||||
| 8th floor ceiling, east | 10 | EpiSen | 90 | 25.2 | -2.95 | 6.9 | 5.50 | 0.193 | |||||||||
| 9th floor ceiling, east | 11 | EpiSen | 360 | 31.7 | 2.60 | 9.6 | 2.79 | 0.130 | |||||||||
| 9th floor ceiling, east | 12 | EpiSen | 90 | 39.5 | -3.76 | 10.8 | 5.98 | 0.210 | |||||||||