Phase Data

Explanation of Parameters


     24 FEB 2013  ( 55)

     ot  = 12:56:03.75   +/-   2.01              NORTHERN TEXAS                  
     lat =      32.545   +/-    5.0
     lon =     -96.863   +/-    4.0              MAGNITUDE 2.5 (GS)       
     dep =         5.0   +/-    3.3   

     18 km (11 miles) N of Waxahachie, Texas (pop 18,000)
     27 km (17 miles) SSW of Dallas, Texas (pop 1,188,000)
     47 km (29 miles) ESE of Fort Worth, Texas (pop 534,000)
     266 km (165 miles) NNE of AUSTIN, Texas

     nph =   30 of  35    se = 0.99    FE=500                            A   

     error ellipse = ( 22.0,  1.0,  8.0;112.0,  3.0,  5.8;276.0, 86.0,  5.0)

 mb = 0.0 (  0)  ML = 0.0 (  0)  mblg = 2.5 ( 13)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 WHTX ePg     12:56:15.58  -2.5    0.8 222                                   WHTX
 435B ePn     12:56:36.17  -0.1    1.9 200                                   435B
      eSn     12:57:00.86  S res =   0.7 
 NATX ePn     12:56:39.50   0.9    2.0 112                                   NATX
 ABTX ePn     12:56:42.99   0.0    2.3 273 g:7.0-2 1.1 3.1                   ABTX
      eSn     12:57:13.27  S res =   1.0 
 WMOK ePn     12:56:48.00   0.0    2.7 324 g:1.0-2 .93 2.4                   WMOK
      eSn     12:57:23.23  S res =   2.0 
 JCT  ePn     12:56:53.53  -1.9    3.3 231 g:5.0-2 .90 3.0                   JCT 
      ePg     12:57:03.16   1.3 
 WLAR ePn     12:56:56.11  -0.6    3.3  69 g:1.0-2 .74 2.4                   WLAR
 MIAR ePn     12:56:56.29  -1.1    3.4  53 g:1.0-2 .90 2.3                   MIAR
 TUL1 ePn     12:56:59.03   0.6    3.5  15 g:1.0-2 .93 2.4                   TUL1
      ePg     12:57:05.80   0.1 
      eSg     12:57:53.43  S res =   5.2X
 W39A ePn     12:57:02.13   0.8    3.7  43 g:1.0-2 .85 2.2                   W39A
 X40A ePn     12:57:05.06   1.0    3.9  59                                   X40A
      eSn     12:57:50.00  S res =  -0.1 
 UALR ePn     12:57:11.05   0.2    4.4  58                                   UALR
 W41B ePn     12:57:14.75   0.1    4.7  54                                   W41B
 AMTX ePn     12:57:14.98   0.3    4.6 302 g:3.0-2 1.0 3.0                   AMTX
 MSTX ePn     12:57:22.12   0.5    5.2 288                                   MSTX
      ePg     12:57:39.38   5.0X
 HHAR ePg     12:57:28.03   5.8X   4.4  32                                   HHAR
 HBAR ePn     12:57:33.34   0.7    6.0  58                                   HBAR
 T42A ePn     12:57:40.20  -0.2    6.5  45                                   T42A
      eSn     12:58:54.06  S res =  -1.1 
 TX31 ePn     12:57:40.28  -2.5    6.7 243                                   TX31
      ePn     12:57:41.09  -1.3 
      ePg     12:58:05.83   5.7X
 CBKS ePn     12:57:40.36  -2.2    6.7 340                                   CBKS
 OXF  ePn     12:57:40.75   0.3    6.5  71                                   OXF 
 PBMO ePn     12:57:43.45  -0.4    6.8  50                                   PBMO
 HPIG ePn     12:58:18.66  -2.4    9.5 236                                   HPIG
 BNM  eLR     13:00:27.15          8.3 284                                   BNM 



 Generated 2013 FEB 24 at 13:12 UTC

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