Phase Data

Explanation of Parameters


      1 SEP 2011  (244)

     ot  = 09:09:37.82   +/-   1.87              VIRGINIA                        
     lat =      37.958   +/-    8.6
     lon =     -77.882   +/-    7.9              MAGNITUDE 3.4 (GS)       
     dep =         4.9   +/-    2.0   

     51 km (31 miles) SW of Fredericksburg, Virginia (pop 19,000)
     53 km (33 miles) E of Charlottesville, Virginia (pop 40,000)
     58 km (36 miles) NW of RICHMOND, Virginia (pop 197,000)
     86 km (53 miles) NNE of Farmville, Virginia (pop 6,000)

     nph =   38 of  41    se = 0.92    FE=492                            A   

     error ellipse = (321.0,  0.0, 14.9;231.0,  0.0,  9.9; 82.0, 89.0,  3.1)

 mb = 0.0 (  0)  ML = 0.0 (  0)  mblg = 3.4 ( 62)  md = 3.7 ( 10)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 JSRW ePg     09:09:42.27  -0.7    0.3 179                                   JSRW
 URVA ePg     09:09:46.69  -0.3    0.5 145 d:2.6+2     3.4                   URVA
 CBN  ePg     09:09:47.06   0.2    0.5  58 d:3.3+2     3.7                   CBN 
 SDMD ePn     09:10:06.67  -1.0    1.7  29 d:2.7+2     3.5  g:2.8-1 .79 3.5  SDMD
      eSn     09:10:29.02  S res =  -0.4 
 VWCC ePn     09:10:08.09  -1.6    1.8 248                                   VWCC
      eSn     09:10:32.26  S res =  -0.8 
 BLA  ePn     09:10:14.00  -0.4    2.1 251 g:3.7-1 .93 3.7                   BLA 
      eSn     09:10:41.74  S res =   0.3 
 MVL  ePn     09:10:16.61  -0.6    2.4  30 g:1.4-1 .80 3.4                   MVL 
 MCWV ePn     09:10:17.22   1.0    2.3 319 g:1.2-1 .77 3.3                   MCWV
 SSPA ePn     09:10:21.11  -0.4    2.7 360                                   SSPA
 PSUB ePn     09:10:21.83  -0.5    2.7  43 g:1.7-1 .84 3.5                   PSUB
 LUPA ePn     09:10:29.87   0.0    3.3  36                                   LUPA
 BRNJ ePn     09:10:36.00  -0.2    3.7  42 g:1.8-1 .77 3.7                   BRNJ
 KMSC ePn     09:10:39.40   0.3    4.0 226 g:1.1-1 .70 3.5                   KMSC
 ALLY ePn     09:10:41.33   0.5    4.1 335 g:6.0-2 .77 3.3                   ALLY
 PAL  ePn     09:10:44.07  -0.2    4.3  44 g:8.0-2 .75 3.4                   PAL 
 BINY ePn     09:10:45.81  -0.6    4.5  18 g:4.0-2 .85 3.1                   BINY
 ERPA ePn     09:10:46.43   0.3    4.5 339 g:6.0-2 .70 3.3                   ERPA
 JSC  ePn     09:10:47.18  -0.5    4.6 218 g:6.0-2 .73 3.3                   JSC 
 ACSO ePn     09:10:47.79   0.2    4.6 301 g:1.0-1 .93 3.5                   ACSO
 TZTN ePn     09:10:49.42  -0.5    4.7 254 g:1.6-1 1.0 3.7                   TZTN
 KSPA ePn     09:10:50.74   0.9    4.7  19 g:2.0-2 .75 2.8                   KSPA
 BUF  ePn     09:10:54.79   1.0    5.0 352                                   BUF 
 TKL  ePn     09:10:57.79   0.7    5.3 246 g:6.0-2 .85 3.4                   TKL 
 CPCT ePn     09:11:08.30   2.5    5.9 247 g:5.0-2 1.0 3.4                   CPCT
 ACCN ePn     09:11:10.59  -0.7    6.3  29 g:4.0-2 .95 3.3                   ACCN
 AAM  ePn     09:11:11.26   1.3    6.2 316                                   AAM 
 BRYW ePn     09:11:11.67   0.6    6.3  49 g:4.0-2 .73 3.3                   BRYW
 GOGA ePn     09:11:13.53   0.5    6.4 227 g:5.0-2 .77 3.4                   GOGA
 NCB  ePn     09:11:15.05  -0.7    6.6  24 g:0.0+0 .93 1.3                   NCB 
 MDV  ePn     09:11:20.19  -0.8    7.0  29                                   MDV 
 SWET ePn     09:11:22.09   0.6    7.0 250 g:2.0-2 .73 3.0                   SWET
 LONY ePn     09:11:23.04   0.6    7.1  19                                   LONY
 WVT  ePn     09:11:35.52  -1.4X   8.2 260 g:2.0-2 .75 3.1                   WVT 
 TRQ  ePn     09:11:41.77  -1.4X   8.6  16                                   TRQ 
 LRAL ePn     09:11:46.66  -0.5X   8.9 239 g:4.0-2 .80 3.5                   LRAL
 SADO eSb     09:13:07.36   7.4    6.9 353 g:3.0-2 .85 3.2                   SADO
 PLVO eSb     09:13:14.37   7.8    7.1   5 g:2.0-2 .77 3.1                   PLVO
 LBNH eSb     09:13:35.10  10.7    7.7  34 g:3.0-2 .82 3.3                   LBNH



 Generated 2011 SEP  1 at 09:23 UTC

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver