Phase Data

Explanation of Parameters


     20 APR 2013  (110)

     ot  = 09:45:13.01   +/-   1.23              EASTERN SICHUAN, CHINA          
     lat =      30.457   +/-    8.9
     lon =     103.111   +/-    9.2              MAGNITUDE 4.4 (GS)       
     dep =        10.1   +/-    3.0   

     95 km (59 miles) WSW of Chengdu, Sichuan, China (pop 2,341,000)
     115 km (72 miles) NNW of Leshan, Sichuan, China (pop 416,000)
     346 km (215 miles) WNW of Chongqing, Chongqing, China
     1599 km (993 miles) SW of BEIJING, Beijing, China

     nph =   26 of  32    se = 0.61    FE=307                            A   

     error ellipse = (134.0,  1.0, 19.4;227.0, 74.0,  4.7; 43.0, 15.0,  2.9)

 mb = 4.4 (  1)  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
 KMI  ePn     09:46:33.32   0.5    5.3 184                                   KMI 
 ENH  ePn     09:46:35.12  -0.2    5.5  90                                   ENH 
      eSn     09:47:39.83  S res =   1.0 
 XAN  ePn     09:46:42.75  -0.2    6.1  53                                   XAN 
 LSA  ePn     09:47:42.05  -0.7   10.4 269                                   LSA 
 CHTO ePn     09:48:06.84   0.0   12.2 199                                   CHTO
 PBKT ePn     09:48:38.39   7.5X  14.0 189                                   PBKT
 KS15 eP      09:50:01.97  -1.8X  21.7  64 b:1.3+1 .90 4.3                   KS15
 KS01 eP      09:50:04.29   0.4   21.7  65                                   KS01
 MK01 eP      09:50:17.37   0.4   22.9 321                                   MK01
 MK31 eP      09:50:17.58   0.4   22.9 321 b:3.9+0 .85 4.0                   MK31
 MAKZ eP      09:50:18.53  -0.5   23.1 321 b:4.0+0 .95 3.9                   MAKZ
 CM31 eSn     09:50:20.40 -10.8X  12.5 199                                   CM31
 MDJ  eP      09:50:39.20   0.7   25.2  48 b:9.0+0 .55 4.7                   MDJ 
 NIL  eP      09:50:40.75  -0.4   25.4 285 b:1.0+1 1.0 4.5                   NIL 
 ZAA0 eP      09:50:54.42   0.0   26.9 336 b:3.7+0 .90 4.1                   ZAA0
 ZALV eP      09:50:54.69   0.3   26.9 336                                   ZALV
 PMBI eP      09:51:49.96  -0.2   33.2 177 b:6.5+2 .60 6.7                   PMBI
 ABKAReP      09:52:26.65   0.0   37.5 313 b:1.9+0 .45 4.2                   ABKA
 GYA0BeP      09:52:29.06   0.6   37.7 294 b:3.7+0 .80 4.2                   GYA0
      ePcP    09:54:48.12   2.3X
 TIXI eP      09:53:16.58   0.1   43.5  12 b:2.4+0 .80 4.0                   TIXI
 WRAB eP      09:55:06.91  -2.2X  58.4 145 b:4.9+0 .85 4.6                   WRAB
 WB2  eP      09:55:07.20  -1.9X  58.4 145 b:5.8+0 .90 4.7                   WB2 
 BPAW eP      09:56:22.35   0.5   69.6  27 b:3.4+0 1.1 4.4                   BPAW
 MDM  eP      09:56:25.58  -0.1   70.2  25 b:8.1+0 1.2 4.7                   MDM 
 SUA  eP      09:56:29.92  -0.3   70.9  29 b:2.2+0 .72 4.4                   SUA 
 PRP  eP      09:56:30.35   0.3   70.9  24 b:2.5+0 .76 4.4                   PRP 
 PMR  eP      09:56:32.95  -0.8   71.5  29 b:3.0+0 .96 4.4                   PMR 
 SCRK eP      09:56:37.64  -0.8   72.3  25 b:2.1+0 .88 4.2                   SCRK
 INK  eP      09:56:42.59  -0.1   73.0  19 b:1.8+0 .60 4.3                   INK 
 KLU  eP      09:56:42.88   0.8   72.9  28 b:8.6+0 1.2 4.7                   KLU 



 Generated 2013 APR 20 at 10:55 UTC

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