Phase Data

Explanation of Parameters


     19 FEB 2013  ( 50)

     ot  = 07:55:34.75   +/-   1.30              EASTERN SICHUAN, CHINA          
     lat =      28.373   +/-   12.0
     lon =     104.953   +/-   10.3              MAGNITUDE 4.6 (GS)       
     dep =        32.5   +/-    5.4   

     58 km (36 miles) SE of Yibin, Sichuan, China (pop 305,000)
     75 km (46 miles) SW of Luzhou, Sichuan, China (pop 394,000)
     204 km (127 miles) SW of Chongqing, Chongqing, China
     1657 km (1029 miles) SW of BEIJING, Beijing, China

     nph =   60 of  61    se = 0.64    FE=307                            A   

     error ellipse = (212.0,  1.0, 19.9;122.0,  0.0, 13.9; 27.0, 88.0,  8.2)

 mb = 4.6 ( 39)  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
 CHTO ePn     07:58:10.55   0.7   11.0 211                                   CHTO
 CM01 ePn     07:58:15.64   1.2   11.3 210                                   CM01
 CM31 ePn     07:58:15.86   1.8   11.3 211                                   CM31
 SHL  ePn     07:58:24.09   0.4   12.0 260                                   SHL 
 SONA1eP      07:59:59.34   0.4   19.5   3                                   SONA
 ULN  eP      07:59:59.66   0.1   19.5   4 b:7.8+0 .90 4.0                   ULN 
 JOW  eP      08:00:13.85   1.3   20.7  89 b:6.3+1 1.3 4.8                   JOW 
 KS01 eP      08:00:18.03  -0.1   21.3  59                                   KS01
 KS15 eP      08:00:18.31   0.3   21.2  59                                   KS15
 JNU  eP      08:00:34.62   0.3   22.8  72 b:4.6+1 1.4 4.8                   JNU 
 KKM  eP      08:00:53.69   1.1   24.6 152 b:3.9+1 1.2 4.9                   KKM 
 MK01 eP      08:01:00.41   0.0   25.5 322                                   MK01
 MK31 eP      08:01:00.59   0.0   25.5 322                                   MK31
 MKAR eP      08:01:01.02   0.4   25.5 322 b:7.1+1 .75 5.3                   MKAR
 MAKZ eP      08:01:02.07  -0.1   25.7 322 b:1.0+1 .75 4.5                   MAKZ
 PRZ  eP      08:01:02.39   0.4   25.7 310 b:1.2+1 .70 4.6                   PRZ 
 TARG eP      08:01:03.97   0.7   25.8 308 b:2.3+1 1.6 4.5                   TARG
 USA0BeP      08:01:11.10  -0.3   26.8  47 b:1.2+1 .90 4.5                   USA0
 NRN  eP      08:01:13.06  -0.5   27.0 307 b:2.0+1 1.6 4.5                   NRN 
 ZALV eP      08:01:35.35  -0.4   29.5 336                                   ZALV
 ZAA0 eP      08:01:35.64  -0.1   29.5 336 b:5.8+0 .70 4.4                   ZAA0
 KURK eP      08:01:39.54   0.3   29.9 326 b:6.9+0 .70 4.6                   KURK
 BTK  eP      08:01:44.24   0.5   30.4 302 b:3.7+0 .45 4.5                   BTK 
 GAR  eP      08:01:45.17  -0.2   30.5 299 b:1.5+1 1.3 4.6                   GAR 
 KBL  eP      08:01:50.82   0.1   31.1 291 b:1.6+1 1.6 4.6                   KBL 
 KKAR eP      08:01:51.68  -0.5   31.3 307                                   KKAR
 KK31 eP      08:01:51.96  -0.2   31.3 307                                   KK31
 BRVK eP      08:02:27.81  -0.3   35.5 324 b:3.8+0 .85 4.3                   BRVK
 ABKAReP      08:03:06.89   0.0   40.1 314                                   ABKA
 GYA0BeP      08:03:07.00   0.4   40.0 296                                   GYA0
      epP     08:03:07.77  depth =  -8.4X
 ARU  eP      08:03:32.05   0.8   43.0 324 b:9.3+0 1.0 4.5                   ARU 
 MBWA eP      08:04:35.18  -0.4   51.3 162 b:9.0+0 1.0 4.7                   MBWA
 WB2  eP      08:05:07.71  -1.3   55.8 146                                   WB2 
      eP      08:05:08.20  -0.8 
 WRAB eP      08:05:08.19  -0.7   55.8 146 b:3.2+1 1.6 5.1                   WRAB
 COEN eP      08:05:10.19  -0.4   56.0 134 b:5.8+0 .90 4.6                   COEN
 AS01 eP      08:05:29.54  -0.5   58.8 149                                   AS01
 KEV  eP      08:05:34.25  -0.2   59.5 337 b:5.4+1 1.3 5.5                   KEV 
 MLR  eP      08:05:58.13  -0.4   63.0 309 b:4.1+0 .80 4.6                   MLR 
 KARP eP      08:06:10.23  -0.4   64.8 298 b:2.0+1 1.0 5.2                   KARP
 NC405eP      08:06:24.33  -0.5   67.1 328                                   NC40
 NC204eP      08:06:26.97  -0.4   67.5 329                                   NC20
 IM3  eP      08:06:35.58  -0.2   68.9  25                                   IM3 
 TOLK eP      08:06:38.50   0.1   69.3  22 b:2.0+0 .75 4.3                   TOLK
 COLD eP      08:06:40.57  -0.1   69.7  24 b:3.6+0 1.2 4.3                   COLD
 GEA0 eP      08:06:42.67  -0.5   70.0 315                                   GEA0
 SVW2 eP      08:06:43.12   0.6   69.9  31 b:5.4+0 1.0 4.6                   SVW2
 MLY  eP      08:06:45.09  -0.2   70.4  26 b:4.9+0 .76 4.7                   MLY 
 PPLA eP      08:06:47.72   0.4   70.7  28 b:1.1+1 .96 4.9                   PPLA
 MDM  eP      08:06:51.10  -0.2   71.4  25 b:6.3+0 .84 4.7                   MDM 
 MCK  eP      08:06:53.58   0.6   71.7  27 b:1.0+1 1.2 4.7                   MCK 
 ILB  eP      08:06:54.42  -0.4   72.0  25                                   ILB 
 PRP  eP      08:06:56.52   0.7   72.1  24 b:6.9+0 .76 4.7                   PRP 
 RIDG eP      08:07:02.10  -0.5   73.3  26 b:1.4+1 1.3 4.8                   RIDG
 KLU  eP      08:07:07.54   0.8   74.0  28 b:3.4+1 1.6 5.1                   KLU 
 INK  eP      08:07:08.89  -0.6   74.5  19 b:3.0+0 .90 4.3                   INK 
 EYAK eP      08:07:10.03   0.2   74.5  29 b:1.0+2 1.6 5.6                   EYAK
 EPYK eP      08:07:10.26  -0.6   74.7  22 b:1.5+1 1.6 4.7                   EPYK
 YKB5 eP      08:08:01.34  -0.6   84.1  17                                   YKB5
 QSPA ePKPdf  08:14:18.44   0.7  118.2 180                                   QSPA



 Generated 2013 FEB 19 at 08:18 UTC

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