Phase Data

Explanation of Parameters


     24 FEB 2013  ( 55)

     ot  = 21:07:50.63   +/-   3.32              NORTHERN TEXAS                  
     lat =      32.446   +/-    3.6
     lon =     -96.987   +/-    8.0              MAGNITUDE 2.7 (GS)       
     dep =         5.1   +/-    2.0   

     15 km (9 miles) WNW of Waxahachie, Texas (pop 18,000)
     39 km (24 miles) ENE of Cleburne, Texas (pop 22,000)
     41 km (26 miles) SSW of Dallas, Texas (pop 1,188,000)
     252 km (156 miles) NNE of AUSTIN, Texas

     nph =   23 of  24    se = 1.63    FE=500                            A   

     error ellipse = (272.0,  0.0, 12.3;  2.0,  1.0,  5.5;174.0, 88.0,  3.1)

 mb = 0.0 (  0)  ML = 0.0 (  0)  mblg = 2.7 ( 13)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 WHTX ePg     21:08:02.35   0.1    0.6 221                                   WHTX
      eSg     21:08:10.12  S res =   0.1 
 435B ePn     21:08:21.59   0.2    1.7 197                                   435B
      eSn     21:08:42.61  S res =  -1.3 
 ABTX ePn     21:08:30.02   1.5    2.3 275 g:1.0-1 1.1 3.2                   ABTX
      eSn     21:08:56.44  S res =  -0.3 
 NATX ePn     21:08:31.34   5.0    2.1 109 g:1.0-2 .73 2.2                   NATX
 WMOK ePn     21:08:36.29   1.1    2.7 327 g:1.0-2 .82 2.3                   WMOK
      eSn     21:09:09.77  S res =   1.2 
 JCT  ePn     21:08:40.42   0.1    3.1 232 g:6.0-2 .88 3.1                   JCT 
      eSn     21:09:16.75  S res =  -1.0 
 MIAR ePn     21:08:43.45  -2.8    3.5  53                                   MIAR
      eSn     21:09:28.50  S res =   0.1 
 TUL1 ePn     21:08:45.92  -1.1    3.6  16 g:1.0-2 .85 2.5                   TUL1
      eSn     21:09:30.83  S res =   1.0 
 W39A ePn     21:08:48.75  -1.4    3.8  43                                   W39A
      eSn     21:09:34.38  S res =  -1.1 
 X40A ePn     21:08:51.54  -1.4    4.0  59 g:1.0-2 .75 2.2                   X40A
 W41B ePn     21:09:00.85  -2.6    4.8  54                                   W41B
 833A ePn     21:09:00.90   0.0    4.6 208 g:2.0-2 .95 2.8                   833A
 AMTX ePn     21:09:01.04   0.0    4.6 303 g:4.0-2 .98 3.1                   AMTX
      eSn     21:09:53.86  S res =  -1.1 
 WHAR ePn     21:09:01.38  -2.6    4.8  53                                   WHAR
 TX31 ePn     21:09:27.39   0.0X   6.5 243                                   TX31



 Generated 2013 FEB 24 at 23:59 UTC

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