Phase Data

Explanation of Parameters


      9 MAY 2011  (129)

     ot  = 23:28:53.64   +/-   3.07              COLORADO                        
     lat =      37.139   +/-    6.7
     lon =    -104.726   +/-    5.2              MAGNITUDE 3.9 (GS)       
     dep =         4.9   +/-    2.0   

     20 km (13 miles) W of Trinidad, Colorado (pop 9,000)
     37 km (23 miles) NW of Raton, New Mexico (pop 7,200)
     54 km (34 miles) S of Walsenburg, Colorado (pop 4,100)
     290 km (180 miles) S of DENVER, Colorado

     nph =   35 of  93    se = 1.51    FE=479                            A   

     error ellipse = (165.0,  0.0, 10.4; 75.0,  1.0,  7.8;263.0, 88.0,  3.0)

 mb = 0.0 (  0)  ML = 3.9 (  1)  mblg = 0.0 (  0)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 T25A ePg     23:28:57.48  -1.6    0.3  90 L:2.2+1 .85 3.6                   T25A
 SDCO ePg     23:29:08.48  -2.3    0.9 315 L:1.5+0 .40 3.2                   SDCO
      eSg     23:29:20.28  S res =  -1.7X
 S22A ePn     23:29:24.40  -1.5    1.8 291 L:5.2-1 .17 3.2                   S22A
      ePg     23:29:25.21  -2.3 
      eSn     23:29:48.18  S res =  -0.9 
 Q24A ePn     23:29:27.17   0.3    1.9 350 L:2.8+0 .32 4.0                   Q24A
      eSn     23:29:49.72  S res =  -1.2 
 ANMO ePn     23:29:35.40  -1.6    2.6 213 L:1.1-1 1.8 2.9                   ANMO
 KSCO ePn     23:29:36.88   1.3    2.5  41 L:3.0+1 .60 5.3                   KSCO
      eLg     23:30:10.42  -5.4X
 SMCO ePn     23:29:39.35   0.8    2.7 320 L:1.5+0 .85 4.1                   SMCO
      eSn     23:30:15.04  S res =   3.2X
 ISCO ePn     23:29:40.42   1.2    2.8 346 L:3.5-1 .88 3.5                   ISCO
      eSn     23:30:15.08  S res =   2.2X
 PV01 ePn     23:29:44.88  -0.6    3.2 289                                   PV01
      eSn     23:30:32.90  S res =   8.7X
 LAZ  ePn     23:29:45.58  -3.0    3.4 214                                   LAZ 
 LPM  ePn     23:29:45.63   0.1    3.2 209                                   LPM 
 MVCO ePn     23:29:46.54   3.8X   3.0 273 L:1.1+0 1.2 4.1                   MVCO
      eSn     23:30:24.98  S res =   5.6X
 BNM  ePn     23:29:48.11   0.6    3.4 208                                   BNM 
 PV09 ePn     23:29:48.36  -4.5X   3.7 293                                   PV09
 AMTX ePn     23:29:48.54   1.4    3.3 131 L:1.2+0 1.0 4.2                   AMTX
      eSn     23:30:26.65  S res =  -0.6 
 N23A ePn     23:29:51.81  -2.8    3.9 346 L:5.2-1 .65 4.0                   N23A
      eSn     23:30:45.50  S res =   5.0X
 MSTX ePg     23:29:56.25  -1.1X   3.5 153 L:9.2-1 .70 4.2                   MSTX
 PV05 ePg     23:29:57.96  -0.4    3.6 286                                   PV05
 O20A ePn     23:29:58.03   0.8    4.1 319 L:3.0-1 1.0 3.9                   O20A
 PHWY ePn     23:29:58.70  -0.4    4.2 352 L:4.0-1 .57 4.0                   PHWY
 CBKS ePn     23:29:59.45  -0.6    4.3  66 L:6.0+0 .73 5.2                   CBKS
 PV10 ePg     23:29:59.97   0.9    3.6 291                                   PV10
 OGNE ePn     23:30:01.65   0.8    4.3  28 L:2.2+0 .95 4.8                   OGNE
 W18A ePg     23:30:14.11  -0.1X   4.5 245 L:2.0-1 1.6 3.8                   W18A
 WMOK ePn     23:30:14.30  -0.9    5.4 115 L:2.5-1 .98 4.2                   WMOK
 SRU  ePn     23:30:18.16   8.4X   5.0 295 L:2.5-1 1.0 4.1                   SRU 
      ePg     23:30:24.16   2.3 
 Q16A ePn     23:30:20.88   5.5X   5.4 291 L:2.3-1 1.1 4.2                   Q16A
 V34A ePn     23:30:22.04  -0.9    6.0 101 L:6.4-1 .98 4.8                   V34A
 MSU  ePn     23:30:23.12  -1.5    6.1 285                                   MSU 
 X18A ePg     23:30:24.47   2.5    5.0 240 L:9.0-2 1.9 3.6                   X18A
 U34A ePn     23:30:25.00   4.0X   5.8  95 L:1.0+0 1.2 4.9                   U34A
 PKCU ePn     23:30:26.41   1.7X   6.1 275 L:2.6-1 2.2 4.4                   PKCU
 MTPU ePn     23:30:27.18   3.4X   6.0 281 L:1.8-1 1.5 4.2                   MTPU
 P17A ePg     23:30:29.17   2.3X   5.3 298 L:1.6-1 1.0 4.0                   P17A
 JLU  ePn     23:30:31.23   3.5X   6.3 306 L:1.1-1 1.5 4.1                   JLU 
 WUAZ ePg     23:30:32.20  -0.4X   5.6 255 L:2.1-1 1.0 4.2                   WUAZ
 BW06 ePn     23:30:35.54   1.6X   6.7 328 L:2.7+0 1.4 4.0                   BW06
      ePn     23:30:36.54   2.6X
 PD31 ePn     23:30:35.95   2.0X   6.7 328                                   PD31
 TCUT ePn     23:30:36.19   5.0X   6.5 310 L:2.6-1 .83 4.6                   TCUT
 HWUT ePn     23:30:38.00   1.5X   6.9 312 L:1.0-1 2.2 4.3                   HWUT
 W34A ePg     23:30:39.36   1.3X   5.9 107 L:7.5-1 1.1 4.8                   W34A
 TUL1 ePn     23:30:41.06  -0.3    7.3  97 L:4.2-1 .85 5.0                   TUL1
      ePg     23:31:05.71   4.4X
 ABTX ePg     23:30:42.84   1.2X   6.1 136 L:3.9-1 1.7 4.6                   ABTX
 MPU  ePg     23:30:46.46   5.0X   6.1 300 L:5.0-2 1.6 3.7                   MPU 
 AHID ePn     23:30:46.70   3.0X   7.5 321 L:7.0-2 .95 4.2                   AHID
 LOHW ePn     23:30:49.44   0.0    7.9 327 L:6.0-2 .95 4.3                   LOHW
 FLWY ePn     23:30:49.75  -5.4X   8.3 329 L:7.0-2 1.4 4.4                   FLWY
 TX31 ePn     23:30:50.37   1.5X   7.8 173                                   TX31
 FXWY ePn     23:30:53.21   0.9    8.1 326 L:3.0-2 1.0 4.1                   FXWY
 IMW  ePn     23:30:53.75  -0.9    8.2 327 L:8.0-2 .63 4.5                   IMW 
 NLU  ePg     23:30:54.23   7.9X   6.4 298 L:6.0-2 2.3 3.9                   NLU 
 LKWY ePn     23:30:55.01  -4.1X   8.6 332 L:4.0-2 1.8 4.3                   LKWY
 MOOW ePn     23:30:56.10   4.3X   8.0 327 L:2.0-2 2.3 3.9                   MOOW
 BGNE ePg     23:30:56.22   6.0X   6.7  48 L:2.0+0 .60 5.5                   BGNE
 HHAR ePn     23:31:01.57   0.8X   8.7  92 L:3.5-1 1.2 5.3                   HHAR
 YFT  ePn     23:31:01.79   1.6X   8.7 330 L:3.0-2 2.3 4.2                   YFT 
 DUG  ePg     23:31:02.29   5.6X   7.0 298 L:5.0-2 1.5 4.0                   DUG 
 TUC  ePg     23:31:04.53   9.4X   6.9 228 L:3.0-2 2.6 3.7                   TUC 
 ECSD ePn     23:31:05.19   0.0    9.0  41                                   ECSD
 MIAR ePn     23:31:08.42  -2.0    9.4 103                                   MIAR
 BGU  ePg     23:31:10.42   5.8X   7.5 303 L:2.0-2 1.6 3.7                   BGU 
 Y14A ePg     23:31:12.82   8.6X   7.5 247 L:1.8-1 1.6 4.7                   Y14A
 HVU  ePg     23:31:16.30   7.0X   7.8 309 L:4.0-2 .93 4.1                   HVU 
 W13A ePg     23:31:16.82   8.8X   7.7 257 L:2.0-2 2.3 3.8                   W13A
 X301 ePn     23:31:21.30   0.9X  10.1  97                                   X301
 SHPR ePg     23:31:27.48   7.5X   8.4 269                                   SHPR
      eSg     23:33:15.27  S res =  15.1X
 BLO  ePn     23:32:17.04  -2.5X  14.5  76                                   BLO 
      eLR     23:36:29.49                                  
 SCIA eLR     23:34:11.46         10.1  58                                   SCIA
 WLAR eLR     23:34:16.29         10.1 107                                   WLAR
 UALR eLR     23:34:20.07         10.3 100                                   UALR
 CCAR eLR     23:34:46.82         11.0 103                                   CCAR
 PARMOeLR     23:35:11.01         12.0  88                                   PARM
 SFIN eLR     23:36:16.75         14.1  71                                   SFIN
 ULM  eLR     23:36:33.52         14.6  23                                   ULM 
 WCI  eLR     23:36:33.88         14.6  80                                   WCI 
 AAM  eLR     23:37:51.81         17.0  66                                   AAM 
 ACSO eLR     23:37:57.31         17.3  73                                   ACSO



 Generated 2011 MAY 10 at 01:27 UTC

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