Phase Data

Explanation of Parameters


     18 FEB 2013  ( 49)

     ot  = 02:54:05.43   +/-   0.71              OKLAHOMA                        
     lat =      35.505   +/-   13.1
     lon =     -97.256   +/-    6.2              MAGNITUDE 2.7 (GS)       
     dep =         5.0  (geophysicist)

     24 km (15 miles) E of OKLAHOMA CITY, Oklahoma (pop 506,000)
     36 km (22 miles) NNE of Norman, Oklahoma (pop 95,000)
     36 km (22 miles) WNW of Shawnee, Oklahoma (pop 26,000)
     44 km (27 miles) SSE of Guthrie, Oklahoma (pop 10,000)

     nph =    8 of  20    se = 0.88    FE=499                            B   

     error ellipse = (177.7,  0.0, 17.3; 87.7,  0.0,  8.2;  0.0,  0.0,  0.0)

 mb = 0.0 (  0)  ML = 0.0 (  0)  mblg = 0.0 (  0)  md = 3.2 (  3)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 TUL1 ePn     02:54:29.75   0.1    1.3  71 d:4.0+1     2.8                   TUL1
      eSn     02:54:46.77  S res =  -0.2X
 WMOK ePn     02:54:32.01  -0.6    1.5 239 d:8.3+1     3.5  g:1.3-2 .31 2.5X WMOK
      eSn     02:54:49.40  S res =  -2.8X
 U32A ePn     02:54:35.93   0.6    1.7 302 d:5.0+1     3.2                   U32A
      eSn     02:54:59.22  S res =   2.2X
 HHAR ePn     02:54:50.19  -0.7    2.8  73                                   HHAR
      eSn     02:55:28.05  S res =   2.9X
 W39A ePn     02:54:53.09   1.5    2.9  95                                   W39A
      eSn     02:55:35.75  S res =   9.4X
 MIAR ePn     02:54:55.77  -0.2    3.2 107 g:4.2-3 .39 2.2X                  MIAR
      eSn     02:55:30.50  S res =  -3.6X
 X40A ePn     02:55:04.22   0.0    3.8 104                                   X40A
      ePg     02:55:14.43  -3.2X
 WHAR ePn     02:55:09.78   1.5X   4.1  92                                   WHAR
      eSn     02:55:56.20  S res =   0.0X
 W41B ePn     02:55:10.50   1.7X   4.1  93                                   W41B
      eSn     02:55:55.39  S res =  -1.9X
 CCM  ePn     02:55:26.69  -0.7    5.5  60 g:3.0-2 .59 3.2X                  CCM 
      eSg     02:56:54.58  S res =  -6.0X



 Generated 2013 FEB 18 at 03:29 UTC

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