USGS National-Strong Motion Project
Preliminary Corrected Peak Ground Acceleration and Velocity and Pseudo-Spectral Acceleration Values for
January 09, 2009, San Bernardino, California Earthquake (posted 01/09/2009; updated 12/06/2012)
Mw 4.5, 01/09/2009, 03:49 UTC, 01/08/2009, 07:49 PM PST, 34.107 N, 117.304 W, 14.1 km depth, Regional Network ID# ci10370185
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
5245 K2 1578 CA:San Bernardino;Co Services Center USGS 34.1065 -117.2885 1.4 92                
      2nd floor, NW           1 FBA-1g 360 -84 3.26 17.9 1.21 0.104
      2nd floor, NE           2 FBA-1g 90 -159 -7.98 41.1 3.72 0.323
      2nd floor, NE           3 FBA-1g 360 -65 2.61 17.6 1.11 0.110
      2nd floor, SW           4 FBA-1g 90 166 -8.96 48.1 3.33 0.334
      4th floor, NW           5 FBA-1g 360 -105 4.89 16.0 1.99 0.158
      4th floor, SW           6 FBA-1g 90 -171 -8.31 53.6 8.16 0.425
      6th level, roof, NE           7 FBA-1g 90 -388 -18.50 89.0 13.30 0.773
      6th level, roof, NW           8 FBA-1g 360 -210 -8.88 50.1 4.02 0.295
      6th level, roof, SW           9 FBA-1g 90 -268 -14.50 65.3 13.20 0.702
      6th level, roof, NE           10 FBA-1g 360 -130 7.86 33.1 3.43 0.234
      4th floor, NE           11 FBA-1g 90 -160 -8.25 50.6 9.07 0.457
      4th floor, NE           12 FBA-1g 360 -81 4.85 14.9 2.24 0.170
5245 Etna 1980 CA:San Bernardino;Co Services Center USGS 34.1061 -117.2887 1.4 94                
      Basement, SW           1 EpiSen 360 101 -2.68 16.4 1.03 0.1040
      Basement, SW           2 EpiSen 270 159 7.95 41.8 2.57 0.3130
      Basement, SW           3 EpiSen UP 48 -1.48 6.2 0.67 0.0315
5326 Etna 1978 CA:San Bernardino;Fire Station 1 USGS 34.1052 -117.2826 2.0 96 1 EpiSen 90 -138 5.82 24.9 2.22 0.2480
                  2 EpiSen 360 -75 2.19 9.2 1.14 0.0981
                  3 EpiSen UP 62 -1.43 7.2 0.71 0.0386
5339 K2 584 CA:San Bernardino;Fire Station 10 USGS 34.09182 -117.29019 2.3 142 1 FBA-2g 180 -125 4.47 27.7 1.01 0.1100
                  2 FBA-2g UP -40 -1.42 5.1 0.42 0.0309
                  3 FBA-2g 270 129 5.58 27.0 2.12 0.2520
5438 K2 2003 CA:San Bernardino;Valley College Obs USGS 34.0869 -117.3114 2.3 197 1 EpiSen 90 -77 -2.39 10.0 1.34 0.1660
                  2 EpiSen 360 -95 -2.61 9.5 1.49 0.0907
                  3 EpiSen UP 70 -1.61 5.6 0.81 0.0410
5373 Etna 2013 CA:San Bernardino;Lincoln School USGS 34.1229 -117.2879 2.3 40 1 EpiSen 90 -103 4.06 18.5 1.26 0.1610
                  2 EpiSen 360 -56 2.11 7.8 1.18 0.0962
                  3 EpiSen UP 25 -0.90 7.4 0.55 0.0228
5337 Etna 2583 CA:San Bernardino;Fire Station 4 USGS 34.1402 -117.2940 3.8 14 1 EpiSen 90 -38 -1.38 6.4 0.91 0.0646
                  2 EpiSen 360 65 -2.76 11.8 1.54 0.1390
                  3 EpiSen UP -37 1.52 14.8 0.52 0.0369
5330 Etna 1989 CA:San Bernardino;Fire Station 09 USGS 34.1035 -117.3490 4.2 265 1 EpiSen 90 -38 -1.21 6.9 0.60 0.0644
                  2 EpiSen 360 -57 2.39 10.3 0.61 0.0508
                  3 EpiSen UP 27 0.58 3.1 0.22 0.0156
5329 K2 548 CA:San Bernardino;Fire Station 11 USGS 34.0691 -117.2755 5.0 148 1 FBA-2g 180 -72 2.07 12.5 1.21 0.0701
                  2 FBA-2g UP 28 -0.67 2.6 0.79 0.0554
                  3 FBA-2g 270 59 -3.31 13.4 2.06 0.1850
5341 Etna 1983 CA:Colton;Kaiser Medical Clinic USGS 34.0580 -117.3049 5.4 181 1 EpiSen 90 -29 1.30 6.9 0.94 0.0866
                  2 EpiSen 360 -50 2.11 11.6 1.13 0.0737
                  3 EpiSen UP -41 -0.87 2.5 0.61 0.0440
5327 K2 593 CA:San Bernardino;Fire Station 7 USGS 34.1652 -117.2886 6.6 12 1 FBA-2g 360 119 3.19 11.5 1.12 0.1060
                  2 FBA-2g UP -73 -0.75 3.7 0.17 0.0160
                  3 FBA-2g 90 -100 -3.92 14.1 0.72 0.0859
5328 K2 599 CA:San Bernardino;Montecito Mem Pk USGS 34.0469 -117.2770 7.1 159 1 FBA-2g 360 -45 1.43 10.2 0.61 0.0552
                  2 FBA-2g UP 30 0.77 6.2 0.41 0.0396
                  3 FBA-2g 90 -34 1.39 7.9 1.05 0.1240
5229 K2 4019 CA:Loma Linda;VA Medical Center VA 34.0507 -117.2508 7.9 142 1 EpiSen 90 -25 1.79 5.7 1.80 0.1160
                  2 EpiSen 360 26 -1.28 5.1 0.92 0.0618
                  3 EpiSen UP -19 1.06 5.6 0.77 0.0460
5331 Etna 2008 CA:San Bernardino;Del Rosa Work Sta USGS 34.1663 -117.2512 8.2 36 1 EpiSen 111 141 -5.07 26.2 1.76 0.1170
                  2 EpiSen 21 -123 4.35 22.8 1.38 0.0879
                  3 EpiSen UP -36 -1.42 5.5 0.38 0.0227
5336 Etna 1979 CA:San Bernardino;Serrano School USGS 34.1449 -117.2188 8.9 62 1 EpiSen 90 176 -6.32 28.5 1.59 0.1240
                  2 EpiSen 360 82 3.24 12.4 1.97 0.1370
                  3 EpiSen UP 50 1.30 5.1 0.52 0.0391
5161 Etna 1442 CA:Highland;Fire Station 8 USGS 34.1362 -117.2135 9.0 69 1 FBA-2g 360 -136 4.64 20.8 1.40 0.1570
                  2 FBA-2g UP -36 -1.05 3.2 0.25 0.0246
                  3 FBA-2g 90 155 -5.11 24.2 1.12 0.0982
5371 Etna 1995 CA:San Bernardino;N Verdemont Sch USGS 34.2059 -117.3671 12.2 333 1 EpiSen 90 39 0.83 2.6 0.23 0.0239
                  2 EpiSen 360 39 -1.15 5.8 0.29 0.0297
                  3 EpiSen UP -18 0.34 1.3 0.15 0.0063
5037 K2 592 CA:Reche Canyon;Olive Dell Ranch USGS 34.0047 -117.2239 13.5 147 1 FBA-2g 360 26 -0.58 3.0 0.54 0.0365
                  2 FBA-2g UP -19 0.35 1.0 0.16 0.0134
                  3 FBA-2g 90 -31 -0.60 1.3 0.32 0.0244
5036 K2 580 CA:SBD;Sycamore Forest FS USGS 34.1926 -117.4274 14.8 310 1 FBA-2g 360 -26 0.62 1.4 0.17 0.0154
                  2 FBA-2g UP 15 -0.35 0.7 0.13 0.0112
                  3 FBA-2g 90 25 0.72 1.5 0.11 0.0119
5265 K2 514 CA:Devore;Devore Water Company USGS 34.235 -117.407 17.1 326 1 FBA-2g 360 -28 -1.14 4.6 0.47 0.0351
                  2 FBA-2g UP 13 -0.31 1.5 0.13 0.0111
                  3 FBA-2g 90 21 0.78 5.8 0.40 0.0318
5162 Etna 1417 CA:Mentone;Fire Station 9 USGS 34.070179 -117.121117 17.8 104 1 FBA-2g 180 44 -1.16 6.5 0.68 0.0493
                  2 FBA-2g UP 38 -1.05 4.0 0.30 0.0223
                  3 FBA-2g 270 33 1.09 5.3 0.37 0.0257
5300 K2 1421 CA:Redlands;Seven Oaks Dam ACOE 34.1105 -117.0986 19.0 89                
      Downstream, surface           1 EpiSen 90 70 2.40 14.4 0.67 0.0679
      Downstream, surface           2 EpiSen 360 -56 2.16 6.5 0.88 0.0716
      Downstream, surface           3 EpiSen UP -21 -0.43 2.0 0.18 0.0116
      Downstream, downhole 53'           4 EpiSen 90 23 -1.24 7.2 0.39 0.0309
      Downstream, downhole 53'           5 EpiSen 360 29 1.66 6.2 0.88 0.0701
      Downstream, downhole 53'           6 EpiSen UP 8 0.32 1.6 0.17 0.0106
5300 MtWh 194 CA:Redlands;Seven Oaks Dam ACOE 34.1174 -117.0979 19.1 86                
      Tunnel chamber           1 EpiSen 90 -9 -0.57 3.1 0.18 0.0145
      Tunnel chamber           2 EpiSen 360 16 -0.89 3.4 0.73 0.0545
      Tunnel chamber           3 EpiSen UP -8 0.35 2.0 0.19 0.0146
      Right abutment           4 EpiSen 90 34 -1.93 9.0 0.63 0.0597
      Right abutment           5 EpiSen 360 58 3.15 14.3 1.40 0.1150
      Right abutment           6 EpiSen UP 23 -1.06 7.9 0.34 0.0301
      Right crest (sensor inoperative)           7 EpiSen 90          
      Right crest (sensor inoperative)           8 EpiSen 360          
      Right crest (sensor inoperative)           9 EpiSen UP          
      Center crest, surface           10 EpiSen 90 115 -5.84 45.2 2.43 0.1510
      Center crest, surface           11 EpiSen 360 -152 -8.27 61.9 5.09 0.2900
      Center crest, surface           12 EpiSen UP 50 -2.48 11.2 1.14 0.0830
      Center crest, downhole 152'           13 EpiSen UP 32 -2.23 9.8 1.11 0.0785
      Center crest, dh 152'  (sensor suspect)           14 EpiSen 360          
      Center crest, downhole 152'           15 EpiSen 90 27 1.37 7.8 1.81 0.0766
      Intake structure (sensor inoperative)           16 EpiSen 90          
      Intake structure (sensor inoperative)           17 EpiSen 360          
      Intake structure (sensor inoperative)           18 EpiSen UP          
5275 Etna 1944 CA:Riverside;Mills Filter Plant MWD 33.9200 -117.3206 20.8 184 1 FBA-2g 360 53 0.83 1.4 0.11 0.0089
                  2 FBA-2g UP 45 -0.62 1.1 0.12 0.0156
                  3 FBA-2g 90 28 0.73 1.4 0.35 0.0298
5409 K2 588 CA:Lytle Creek;Fire Station USGS 34.2340 -117.4824 21.7 311 1 FBA-2g 360 -41 1.80 8.6 0.57 0.0352
                  2 FBA-2g UP 36 1.05 3.0 0.29 0.0164
                  3 FBA-2g 90 58 1.92 12.9 0.40 0.0360
5076 Etna 1434 CA:Yucaipa;Mill Creek Ranger Station USGS 34.0791 -117.0448 24.1 97 1 FBA-2g 180 -12 -0.49 2.4 0.61 0.0305
                  2 FBA-2g UP 11 0.43 2.0 0.29 0.0151
                  3 FBA-2g 270 -17 0.68 2.9 0.47 0.0285
707 Etna 3701 CA:Lake Mathews Dam (tower) MWD 33.849 -117.4547 31.8 206 1 EpiSen 90 -47 -0.88 3.5 0.19 0.0218
                  2 EpiSen 360 53 1.05 1.5 0.13 0.0116
                  3 EpiSen UP -16 0.33 0.7 0.07 0.0080
5075 Etna 1436 CA:Forest Falls;Post Office USGS 34.088 -116.919 35.6 93 1 FBA-2g 180 6 -0.38 1.1 0.37 0.0229
                  2 FBA-2g UP -5 -0.14 0.8 0.08 0.0055
                  3 FBA-2g 270 -6 0.25 1.6 0.24 0.0142
5282 K2 513 CA:Wrightwood;Post Office USGS 34.360 -117.628 41.0 313 1 FBA-2g 180 11 0.55 2.6 0.23 0.0134
                  2 FBA-2g UP -10 -0.32 1.5 0.07 0.0068
                  3 FBA-2g 270 17 -0.54 4.3 0.15 0.0125
5164 Etna 1923 CA:LaVerne;Weymouth Filter Plant MWD 34.1142 -117.7792 43.9 271 1 FBA-2g 5 -28 -0.77 2.0 0.58 0.0224
                  2 FBA-2g UP -14 0.45 2.1 0.20 0.0101
                  3 FBA-2g 95 32 1.04 4.9 0.40 0.0377
5289 K2 602 CA:San Jacinto;MWD W Portal USGS 33.822 -116.968 44.3 135 1 FBA-2g 360 7 -0.23 1.2 0.12 0.0102
                  2 FBA-2g UP 5 0.20 0.9 0.16 0.0078
                  3 FBA-2g 90 5 -0.18 0.7 0.22 0.0105
5073 K2 587 CA:Cabazon;Post Office USGS 33.918 -116.782 52.6 113 1 FBA-2g 180 6 0.18 0.7 0.09 0.0141
                  2 FBA-2g UP 5 -0.12 0.6 0.08 0.0051
                  3 FBA-2g 270 -6 -0.17 0.7 0.16 0.0121
5032 Etna 2024 CA:Paradise Springs;Camp Office USGS 34.3967 -117.8070 56.4 305 1 EpiSen 90 13 -0.38 3.1 0.08 0.0071
                  2 EpiSen 360 15 -0.49 2.9 0.12 0.0079
                  3 EpiSen UP -8 0.20 1.0 0.06 0.0052
720 Etna 1940 CA:Murietta Hot Springs;Skinner Dam MWD 33.5828 -117.0717 62.0 160 1 FBA-2g 360 -6 -0.12 0.5 0.04 0.0035
                  2 FBA-2g UP -4 0.07 0.5 0.05 0.0043
                  3 FBA-2g 90 -10 0.23 1.6 0.06 0.0093
5071 K2 544 CA:Morongo Valley;Fire Station 461 USGS 34.049 -116.578 67.3 95 1 FBA-2g 360 7 -0.36 1.1 0.35 0.0180
                  2 FBA-2g UP -3 0.13 0.8 0.12 0.0073
                  3 FBA-2g 90 -6 0.34 1.1 0.23 0.0132
5222 K2 2139 CA:Anza;Tripp Flats USGS 33.6022 -116.7557 75.6 138 1 EpiSen 90 -10 0.27 0.7 0.05 0.0035
                  2 EpiSen 360 -7 0.22 0.6 0.05 0.0045
                  3 EpiSen UP -3 0.08 0.2 0.06 0.0023
482 K2 699 CA:Alhambra;LA County Pub Works HQ USGS 34.0849 -118.1500 78.1 268                
      12th Floor, center         268 1 FBA-11 360 3 -0.18 0.7 0.13 0.0307
      12th Floor, center         268 2 FBA-11 90 -2 -0.21 0.5 0.17 0.0269
      12th floor, North end         268 3 FBA-11 360 3 0.18 0.8 0.15 0.0308
      6th floor, center         268 4 FBA-11 90 -3 -0.18 1.0 0.10 0.0161
      6th floor, center         268 5 FBA-11 360 4 -0.21 1.3 0.08 0.0201
      6th floor, North end         268 6 FBA-11 360 4 -0.20 1.2 0.09 0.0198
      2nd floor, center         268 7 FBA-11 90 4 0.15 1.2 0.11 0.0094
      2nd floor, center         268 8 FBA-11 360 7 -0.24 1.6 0.10 0.0100
      2nd floor, North end         268 9 FBA-11 90 -4 0.12 0.9 0.12 0.0090
      Basement, center         268 10 FBA-11 360 3 -0.15 0.8 0.09 0.0096
      Basement, center         268 11 FBA-11 UP -2 -0.05 0.4 0.06 0.0063
      Basement, center         268 12 FBA-11 90 2 0.08 0.7 0.11 0.0089
5396 K2 517 CA:Los Angeles;Acosta Residence USGS 34.0729 -118.1774 80.7 268 1 FBA-2g 180 -7 0.30 2.4 0.20 0.0131
                  2 FBA-2g UP 5 0.24 1.5 0.08 0.0083
                  3 FBA-2g 270 -7 -0.30 2.1 0.14 0.0109
5439 Etna 1316 CA:L.A.;MWD HQ Bldg (Parking level 2) MWD 34.0545 -118.2365 86.3 266 1 FBA-1g 190 -2 0.08 0.5 0.06 0.0054
                  2 FBA-1g UP 2 -0.06 0.4 0.06 0.0058
                  3 FBA-1g 280 2 -0.12 0.8 0.09 0.0075
5439 Etna 1317 CA:L.A.;MWD HQ Bldg (6th floor) MWD 34.0545 -118.2365 86.3 266 1 FBA-1g 180 5 0.31 1.0 0.20 0.0166
                  2 FBA-1g UP 5 -0.13 0.5 0.06 0.0066
                  3 FBA-1g 270 5 0.32 1.3 0.23 0.0185
5439 Etna 1318 CA:L.A.;MWD HQ Bldg (roof level) MWD 34.0545 -118.2365 86.3 266 1 FBA-1g 190 -5 0.34 1.6 0.40 0.0294
                  2 FBA-1g UP -4 0.14 0.7 0.06 0.0068
                  3 FBA-1g 280 5 -0.40 1.2 0.57 0.0353
5068 Etna 2593 CA:Thousand Palms;Post Office USGS 33.8165 -116.3945 90.0 111 1 EpiSen 45 7 0.18 0.8 0.16 0.0116
                  2 EpiSen 315 7 0.24 1.2 0.12 0.0107
                  3 EpiSen UP -3 -0.08 0.5 0.09 0.0067
655 Etna 1939 CA:Sylmar;Jensen Filt Pl; Reservoir Strl MWD 34.3082 -118.5005 112.5 282 1 FBA-2g 22 6 -0.35 1.2 0.23 0.0121
                  2 FBA-2g UP -2 -0.13 0.6 0.13 0.0063
                  3 FBA-2g 112 -5 -0.22 0.8 0.18 0.0110
5270 K2 526 CA:Mecca;Fire Station USGS 33.5720 -116.0772 128.1 117 1 FBA-2g 360 -3 0.20 0.8 0.20 0.0125
                  2 FBA-2g UP -1 0.09 0.3 0.18 0.0077
                  3 FBA-2g 90 7 -0.41 1.7 0.28 0.0185