Phase Data

Explanation of Parameters


     21 FEB 2013  ( 52)

     ot  = 17:27:16.72   +/-   2.51              OFF COAST OF CHIAPAS, MEXICO    
     lat =      14.172   +/-   11.0
     lon =     -93.144   +/-   10.6              MAGNITUDE 4.6 (GS)       
     dep =        11.8   +/-    2.6   

     125 km (78 miles) SW of Tapachula, Chiapas, Mexico (pop 189,000)
     190 km (118 miles) WSW of Quetzaltenango, Guatemala
     286 km (178 miles) W of GUATEMALA, Guatemala
     865 km (537 miles) SE of MEXICO CITY, D.F., Mexico

     nph =   85 of  91    se = 1.24    FE=069                            A   

     error ellipse = (222.0,  0.0, 19.2;132.0,  6.0, 13.3;315.0, 83.0,  3.6)

 mb = 4.6 ( 64)  ML = 0.0 (  0)  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
 THIG ePg     17:27:37.73  -0.4    1.1  49                                   THIG
      eSg     17:27:51.60  S res =  -1.1X
 PCIG ePn     17:27:41.50  -2.4    1.5 357                                   PCIG
      eSn     17:27:53.72  S res =  -9.9X
 CCIG ePn     17:27:55.78   0.9    2.3  25                                   CCIG
      ePn     17:27:56.02   1.2 
      eSn     17:28:24.19  S res =   0.8 
 APG  ePn     17:28:01.53   1.0    2.7  72                                   APG 
 HUIG ePn     17:28:04.28  -3.7X   3.3 299                                   HUIG
 CMIG ePn     17:28:06.85  -2.1    3.3 330                                   CMIG
      eSn     17:28:44.97  S res =  -3.8X
 TGUH ePn     17:28:39.47  -1.9    5.7  90                                   TGUH
 LVIG ePn     17:28:51.72   1.6    6.4 331                                   LVIG
 ESTN ePn     17:28:54.81   0.1    6.7  98                                   ESTN
 MYIG ePn     17:29:07.13   1.3    7.5  25                                   MYIG
 TEIG ePn     17:29:07.69   0.2    7.6  37                                   TEIG
 JTS  ePn     17:29:27.70   2.6    8.9 115                                   JTS 
 435B ePn     17:31:15.29   0.4   17.0 347 b:1.7+1 .80 4.2                   435B
 JCT  ePn     17:31:18.08  -0.8   17.3 340 b:1.2+1 .90 4.0                   JCT 
 TX31 ePn     17:31:25.91  -0.8   18.0 329                                   TX31
      ePn     17:31:26.28  -0.2 
 555A eP      17:31:29.91  -2.3   18.4  29 b:3.6+1 .80 4.6                   555A
 352A eP      17:31:37.05   0.9   18.8  22 b:1.7+2 1.6 5.0                   352A
 Z41A eP      17:31:39.01   0.6   19.0   1 b:3.8+1 1.2 4.5                   Z41A
 147A eP      17:31:39.33   1.6   18.9  13                                   147A
 TIGA eP      17:31:41.04  -0.5   19.3  25 b:2.6+1 .95 4.5                   TIGA
 ABTX eP      17:31:41.98   0.3   19.3 343 b:6.3+1 1.6 4.6                   ABTX
 152A eP      17:31:48.17  -0.6   19.9  21 b:1.9+1 1.1 4.3                   152A
 Z50A eP      17:31:49.71  -0.7   20.1  18 b:9.7+0 .80 4.2                   Z50A
 MIAR eP      17:31:51.78  -0.6   20.3 359 b:2.3+1 1.1 4.4                   MIAR
 UALR eP      17:31:54.98   0.0   20.5   2 b:1.4+1 .85 4.3                   UALR
 GDL2 eP      17:31:55.51  -1.2   20.7 332                                   GDL2
 MNTX eP      17:31:58.92   1.6   20.7 329 b:1.0+1 .85 4.2                   MNTX
 W41B eP      17:31:59.37   0.0   20.9   2 b:2.5+1 .90 4.6                   W41B
 GOGA eP      17:31:59.57  -1.4   21.1  23 b:2.2+1 1.2 4.4                   GOGA
 W39A eP      17:31:59.72   0.2   20.9 359 b:1.4+1 .90 4.3                   W39A
 ROSC eP      17:32:00.66   3.0   20.7 115 b:1.7+1 1.0 4.4                   ROSC
 WMOK eP      17:32:00.78  -0.5   21.1 347 b:2.7+1 1.1 4.5                   WMOK
 X48A eP      17:32:00.82   1.4   20.9  14 b:1.3+1 1.1 4.2                   X48A
 Y52A eP      17:32:02.09  -0.9   21.3  21 b:2.1+1 .95 4.5                   Y52A
 MSTX eP      17:32:05.72  -0.6   21.6 338 b:3.0+1 1.0 4.7                   MSTX
 TUL1 eP      17:32:08.05  -0.4   21.8 354 b:4.4+1 1.4 4.7                   TUL1
 AMTX eP      17:32:09.82  -1.3   22.0 341 b:3.5+1 .65 4.9                   AMTX
 HHAR eP      17:32:09.87  -1.3   22.0 358 b:1.9+1 .86 4.6                   HHAR
 WVT  eP      17:32:16.09   1.2   22.4  11 b:1.5+1 .95 4.4                   WVT 
 T42A eP      17:32:17.77  -2.0   22.8   4 b:1.5+1 .95 4.5                   T42A
 SDV  eP      17:32:18.07  -0.3   22.7 101 b:1.3+1 .95 4.4                   SDV 
 PAULIeP      17:32:22.89   1.8   23.0  25 b:2.2+1 1.1 4.6                   PAUL
 TKL  eP      17:32:23.52   2.1   23.0  20 b:4.6+1 1.5 4.8                   TKL 
 CCM  eP      17:32:26.38  -3.6X  23.8   4 b:3.4+1 1.3 4.8                   CCM 
 T49A eP      17:32:27.07  -2.7   23.8  15 b:6.8+1 1.7 4.9                   T49A
 FVM  eP      17:32:31.02   1.2   23.8   5 b:2.8+1 1.3 4.7                   FVM 
 TZTN eP      17:32:31.04   0.8   23.9  19 b:1.3+1 .90 4.5                   TZTN
 TUC  eP      17:32:34.56   1.2   24.2 321 b:1.3+1 1.0 4.5                   TUC 
 WCI  eP      17:32:37.27  -0.6   24.7  13 b:4.6+1 .80 5.2                   WCI 
 OLIL eP      17:32:39.42   0.2   24.9   9 b:2.6+1 .95 4.9                   OLIL
 Q44A eP      17:32:40.52   0.9   24.9   8 b:5.6+1 1.2 5.1                   Q44A
 S51A eP      17:32:40.79   1.5   24.9  18 b:1.9+1 .90 4.8                   S51A
 SDCO eP      17:32:49.07  -0.1   25.9 337 b:1.4+1 1.3 4.5                   SDCO
 ELK  eP      17:33:50.25   0.4   32.8 328 b:4.4+0 1.0 4.3                   ELK 
 REDW eP      17:33:50.47   0.0   32.8 336 b:2.3+1 1.3 4.9                   REDW
 NV01 eP      17:33:50.72   0.0   32.8 322                                   NV01
      ePcP    17:36:35.18  -0.3 
 SNOW eP      17:33:51.19   0.3   32.9 336 b:1.6+1 .90 5.0                   SNOW
 LOHW eP      17:33:51.28  -0.1   32.9 336 b:3.8+1 1.9 5.0                   LOHW
 MOOW eP      17:33:53.27   0.4   33.1 336 b:1.4+1 1.7 4.6                   MOOW
 FXWY eP      17:33:53.34   0.3   33.1 336 b:3.1+0 .90 4.2                   FXWY
 MCMT eP      17:34:08.20   0.2   34.8 335                                   MCMT
 BEKR eP      17:34:09.41   0.1   35.0 322 b:3.9+0 .80 4.3                   BEKR
 DLMT eP      17:34:11.82   1.0   35.2 336 b:9.9+0 1.1 4.6                   DLMT
 PTGA eP      17:34:19.50   1.2   36.0 112 b:1.0+1 .80 4.8                   PTGA
 J08A eP      17:34:20.43   0.0   36.3 328 b:1.0+1 1.1 4.6                   J08A
 EGMT eP      17:34:22.70   1.1   36.5 341 b:1.9+1 1.3 4.8                   EGMT
 F10A eP      17:34:31.78   0.1   37.6 332 b:9.3+0 .90 4.6                   F10A
 FCC  eP      17:35:26.85  -1.1   44.5 359 b:6.2+0 .85 4.5                   FCC 
 YKW3 eP      17:36:14.69  -1.1   50.7 347 b:1.4+1 .90 4.9                   YKW3
 PLCA eP      17:37:13.22   0.2   58.5 160                                   PLCA
 INK  eP      17:37:21.79  -0.8   60.0 344 b:5.4+0 .85 4.7                   INK 
 RES  eP      17:37:24.56  -1.8   60.5 360 b:5.7+0 .85 4.7                   RES 
 IL1  eP      17:37:37.92  -0.3   62.3 337                                   IL1 
 ILB  eP      17:37:38.05  -0.2   62.3 337 b:8.7+0 1.2 4.8                   ILB 
 RND  eP      17:37:39.53   0.1   62.4 335 b:1.6+1 .72 5.3                   RND 
 TRF  eP      17:37:43.19  -0.4   63.0 335 b:1.8+1 .80 5.3                   TRF 
 MLY  eP      17:37:47.27  -1.6   63.8 337 b:3.3+1 1.9 5.2                   MLY 
 TOLK eP      17:37:56.31   0.0   65.0 340 b:1.0+1 .55 5.2                   TOLK
 ESDC eP      17:39:26.49  -2.5   80.5  51                                   ESDC
 NB200eP      17:39:47.01  -2.6   84.5  28                                   NB20
 ARA0 eP      17:39:57.05  -1.3   86.3  18                                   ARA0
 FIA0 eP      17:40:17.25  -2.6   90.8  25                                   FIA0
 MK32 ePKPdf  17:46:05.09  -0.9  119.2   4                                   MK32
 WR1  ePKPdf  17:46:31.37  -4.2X 134.4 256                                   WR1 



 Generated 2013 MAR 20 at 14:16 UTC

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