Phase Data

Explanation of Parameters


     15 FEB 2010  ( 46)

     ot  = 03:32:25.20   +/-   0.47              OKLAHOMA                        
     lat =      35.570   +/-    5.0
     lon =     -97.275   +/-    4.0              MAGNITUDE 2.8 (GS)       
     dep =         5.0  (geophysicist)

     25 km (15 miles) ENE of OKLAHOMA CITY, Oklahoma (pop 506,000)
     35 km (25 miles) SSE of Guthrie, Oklahoma (pop 10,000)
     40 km (25 miles) NNE of Norman, Oklahoma (pop 95,000)
     40 km (25 miles) NW of Shawnee, Oklahoma (pop 26,000)
 
     mbLg 2.8 (GS). Felt at Spencer.

     nph =   12 of  23    se = 0.75    FE=499                            A   

     error ellipse = (174.5,  0.0,  6.6; 84.5,  0.0,  5.2;  0.0,  0.0,  0.0)

 mb = 0.0 (  0)  ML = 0.0 (  0)  mblg = 2.8 (  7)  md = 3.8 (  4)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 V34A eP      03:32:32.36   0.8    0.3 323 d:2.0+2     3.9                   V34A
      eS      03:32:37.29  S res =   1.4X
 W34A eP      03:32:35.57   0.2    0.5 231 d:1.6+2     3.8                   W34A
      eS      03:32:43.28  S res =   1.1X
 U34A eP      03:32:42.70   0.4    0.9 346 d:9.9+1     3.5  g:8.8-2 .78 2.8  U34A
      eS      03:32:53.22  S res =  -0.6X
 TUL  P       03:32:48.00  -1.2    1.3  74                                   TUL 
      S       03:33:11.00  S res =   4.4X
 TUL1 eP      03:32:48.99  -0.2    1.3  74 d:1.5+2     4.0  g:5.7-2 .65 2.8  TUL1
      eS      03:33:05.61  S res =   0.1X
 RLO  P       03:32:59.00   0.4    1.9  71                                   RLO 
      S       03:33:26.00  S res =   0.9X
 MIAR ePn     03:33:17.48   1.3    3.2 108 d:1.4+2     4.7X g:3.2-2 .85 2.8  MIAR
      eSn     03:33:56.83  S res =   2.0X
 KSU1 ePn     03:33:21.11  -0.1    3.6   8 d:1.2+2     4.7X g:6.4-2 .85 3.1  KSU1
      ePg     03:33:33.02  -0.5X
      eSg     03:34:18.82  S res =  -0.9X
 WHTX ePn     03:33:21.32   0.0    3.6 182 d:2.6+1     3.3X g:1.4-2 .63 2.6  WHTX
      eSn     03:34:07.24  S res =   3.4X
 MSTX ePn     03:33:37.59  -0.6    4.8 252 d:1.4+2     5.3X g:3.7-2 .70 3.2  MSTX
      eSg     03:34:55.56  S res =  -3.8X
 KSCO ePn     03:33:47.18  -0.4    5.5 310 d:1.4+1     3.5X b:7.7+0 .40 4.7X KSCO
 SDCO ePn     03:34:07.53  -0.6    7.0 291 d:2.3+2     6.6X g:5.3-3 .63 2.6  SDCO
                                           b:4.4+0 .45 4.9X



 Generated 2010 FEB 15 at 04:01 UTC

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