Phase Data

Explanation of Parameters


     23 AUG 2011  (235)

     ot  = 07:17:58.79   +/-   1.89              COLORADO                        
     lat =      37.099   +/-    6.0
     lon =    -104.610   +/-    2.5              MAGNITUDE 3.8 (GS)       
     dep =         4.8   +/-    2.0   

     13 km (8 miles) SW of Trinidad, Colorado (pop 9,000)
     27 km (16 miles) NW of Raton, New Mexico (pop 7,200)
     60 km (37 miles) SSE of Walsenburg, Colorado (pop 4,100)
     295 km (183 miles) S of DENVER, Colorado

     nph =   58 of  59    se = 0.93    FE=479                            A   

     error ellipse = ( 22.0,  0.0,  9.9;287.0, 84.0,  3.1;112.0,  5.0,  1.0)

 mb = 0.0 (  0)  ML = 3.8 (  1)  mblg = 3.6 ( 91)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 T25A ePg     07:18:02.05  -0.1    0.2  76 L:1.4+0 .45 2.2                   T25A
      eSg     07:18:05.45  S res =   1.1 
 S22A ePn     07:18:30.86  -1.1    1.9 291 L:1.4+0 .60 3.7  g:1.7-1 .75 3.4  S22A
 Q24A ePn     07:18:31.50  -0.8    1.9 347 L:1.8+0 .28 3.8  g:2.0-1 .70 3.4  Q24A
 KSCO ePn     07:18:40.66   0.8    2.5  39 L:7.7+0 .60 4.7  g:2.6-1 .85 3.7  KSCO
      eSn     07:19:14.84  S res =   4.4 
 ANMO ePn     07:18:41.31  -0.6    2.6 215 L:1.6-1 .60 3.1  g:8.0-2 1.1 3.2  ANMO
      eSn     07:19:17.77  S res =   3.6 
 SMCO ePn     07:18:43.90  -0.6    2.8 319 L:1.6+0 .43 4.2                   SMCO
 ISCO ePn     07:18:44.61  -0.1    2.8 344 L:1.9-1 .93 3.2  g:1.1-1 .77 3.3  ISCO
 MVCO ePn     07:18:48.46  -0.3    3.1 273 L:1.3+0 .45 4.2  g:2.9-1 .77 3.8  MVCO
 LPM  ePn     07:18:49.99  -0.4    3.2 211                                   LPM 
 PV01 ePn     07:18:50.62  -0.9    3.3 289                                   PV01
 AMTX ePn     07:18:51.11   0.7    3.2 132 L:1.7+0 .57 4.3  g:3.2-1 .75 3.8  AMTX
 LAZ  ePn     07:18:51.66  -1.9    3.5 215                                   LAZ 
 BNM  ePn     07:18:52.36   0.0    3.4 210                                   BNM 
 MSTX ePn     07:18:53.22  -0.3    3.5 154 L:1.4+0 .45 4.3  g:9.0-2 .82 3.3  MSTX
 PV10 ePn     07:18:57.12  -0.2    3.7 291                                   PV10
 PV05 ePn     07:18:57.20   0.4    3.7 287                                   PV05
 PV09 ePn     07:18:58.88   0.0    3.8 293                                   PV09
 O20A ePn     07:19:03.55   0.4    4.2 318 L:1.8-1 .95 3.7  g:2.0-2 .70 2.7  O20A
 CBKS ePn     07:19:03.58  -0.2    4.2  65 L:2.5+0 .77 4.8  g:1.2-1 .88 3.6  CBKS
 Y22D ePg     07:19:04.79   2.5    3.6 213 L:4.4-1 .75 3.9  g:1.2-1 .77 3.5  Y22D
 PHWY ePn     07:19:05.19   0.7    4.3 351 L:1.5-1 .63 3.6  g:6.0-2 .73 3.2  PHWY
 OGNE ePn     07:19:05.59   0.2    4.3  27 L:6.1-1 .57 4.3  g:1.4-1 .80 3.6  OGNE
 SRU  ePn     07:19:15.65  -0.1    5.1 295 L:2.7-1 .64 4.1  g:9.0-2 1.0 3.5  SRU 
      ee      07:19:30.43   0.0X
 WMOK ePn     07:19:17.75  -0.7    5.3 115 L:2.4-1 .60 4.2  g:9.0-2 1.0 3.5  WMOK
 MMU  ePn     07:19:20.17  -0.3    5.4 284                                   MMU 
 TMUT ePn     07:19:23.58   0.0    5.6 295 L:2.8-1 .86 4.3  g:4.0-2 .84 3.3  TMUT
 WUAZ ePn     07:19:24.08   0.0    5.7 256 L:2.1-1 .70 4.2  g:4.0-2 .73 3.2  WUAZ
 U34A ePn     07:19:24.26  -0.1    5.7  95 L:4.3-1 .73 4.5  g:5.0-2 .95 3.3  U34A
 V34A ePn     07:19:26.01  -0.2    5.9 100 L:4.6-1 .75 4.6  g:6.0-2 .73 3.5  V34A
 W34A ePn     07:19:27.04   1.0    5.8 107 L:4.3-1 .73 4.6  g:9.0-2 .77 3.6  W34A
 ABTX ePn     07:19:29.00   0.1    6.1 136 L:3.2-1 .45 4.5  g:7.0-2 .73 3.5  ABTX
 CLNB ePg     07:19:29.22   4.7    4.9 173                                   CLNB
 PKCU ePn     07:19:30.13  -0.5    6.2 276 L:2.2-1 .90 4.4  g:1.1-1 1.0 3.7  PKCU
 X16A ePn     07:19:30.37  -0.3    6.2 246 L:5.0-2 .63 3.7  g:2.0-2 .98 3.0  X16A
 MTPU ePn     07:19:30.40   0.6    6.1 281 L:8.0-2 .71 3.9  g:2.0-2 .74 3.0  MTPU
 U15A ePn     07:19:31.40   0.1    6.2 266 L:1.0-1 1.1 4.1                   U15A
 RWWY ePg     07:19:31.86   4.8    5.0 337 L:6.5+0 .80 5.5  g:4.5+0 .95 5.2  RWWY
      eSg     07:20:36.29  S res =   8.6 
 EKU  ePn     07:19:32.03  -0.6    6.3 272                                   EKU 
 MSU  ePn     07:19:32.41   1.8    6.2 286                                   MSU 
 JLU  ePn     07:19:34.26   0.5    6.4 305 L:5.0-2 1.1 3.8  g:2.0-2 1.3 3.0  JLU 
 KNB  ePn     07:19:35.69  -0.5    6.6 272 L:1.0-1 1.4 4.1  g:3.0-2 .94 3.3  KNB 
 BW06 ePn     07:19:38.59  -1.1    6.8 328 L:1.1+0 1.9 3.5                   BW06
      ePn     07:19:38.95  -0.7 
 PD31 ePn     07:19:38.97  -0.7    6.8 328                                   PD31
 LCMT ePn     07:19:40.02  -0.8    6.9 272 L:6.0-2 .65 4.0  g:2.0-2 .82 3.0  LCMT
 HWUT ePn     07:19:42.00  -0.4    7.0 312 L:5.0-2 1.0 4.0  g:1.0-2 .93 2.8  HWUT
 RSSD ePn     07:19:42.22  -0.3    7.0   3 L:1.3-1 .95 4.4                   RSSD
 TUL1 ePn     07:19:44.90   0.2    7.2  97 L:3.5-1 .57 4.9  g:6.0-2 .88 3.5  TUL1
 TX31 ePn     07:19:53.28   0.4    7.8 174                                   TX31
      ePn     07:19:53.72   0.9 
 FXWY ePn     07:19:57.56  -0.6    8.2 325 L:1.0-2 .82 3.7  g:1.0-2 1.2 2.8  FXWY
 HHAR ePn     07:20:03.18  -0.9    8.6  92 L:9.0-2 .85 4.7  g:4.0-2 .71 3.5  HHAR
 ECSD ePn     07:20:09.52   0.1    9.0  40 g:2.0-2 .90 3.3                   ECSD
 MIAR ePn     07:20:12.84  -0.9    9.3 103 g:7.0-2 1.0 3.7                   MIAR



 Generated 2011 AUG 23 at 07:51 UTC

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