Phase Data

Explanation of Parameters


     16 MAR 2013  ( 75)

     ot  = 02:08:12.32   +/-   1.29              RYUKYU ISLANDS, JAPAN           
     lat =      28.736   +/-   10.4
     lon =     128.252   +/-   15.6              MAGNITUDE 4.2 (GS)       
     dep =       161.9   +/-    8.5   

     286 km (178 miles) NNE of Naha, Okinawa, Japan
     387 km (240 miles) SW of Kagoshima, Kyushu, Japan
     465 km (289 miles) SW of Miyazaki, Kyushu, Japan
     1328 km (825 miles) WSW of TOKYO, Japan

     nph =   35 of  38    se = 0.64    FE=238                            A   

     error ellipse = ( 89.0,  4.0, 24.0;181.0, 27.0, 16.8;351.0, 61.0, 11.4)

 mb = 4.2 ( 19)  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
 JOW  ePn     02:08:47.54   0.6    1.9 179                                   JOW 
      eSn     02:09:12.49  S res =  -1.2 
 JNU  ePn     02:09:26.39   1.4    4.9  27                                   JNU 
 YHNB ePn     02:09:58.23   0.9    7.4 238                                   YHNB
 YULB ePn     02:10:06.17  -2.3    8.2 231                                   YULB
 SSLB ePn     02:10:08.78   0.4    8.2 235                                   SSLB
 KS01 ePn     02:10:15.19   0.0    8.7 358                                   KS01
 KS15 ePn     02:10:16.20   0.7X   8.8 358                                   KS15
 MJB9 ePn     02:10:49.64  -1.3X  11.4  45                                   MJB9
 MAJO ePn     02:10:49.76  -1.2X  11.4  45                                   MAJO
 BJT  ePn     02:11:35.99  -0.4   15.0 322 b:7.5+1 .90 5.1                   BJT 
 ENH  eP      02:11:53.62   0.3   16.4 280 b:3.6+1 .90 4.7                   ENH 
 XAN  eP      02:12:05.46   2.1   17.3 293 b:1.1+2 1.0 5.2                   XAN 
 ULN  eP      02:13:23.61   0.7   25.2 325 b:1.6+1 1.0 4.5                   ULN 
 FAKI eP      02:14:21.58   0.7   31.7 172 b:1.5+1 .80 4.8                   FAKI
 MK01 eP      02:15:29.75  -0.7   39.9 310                                   MK01
 MK31 eP      02:15:30.37  -0.1   39.9 310 b:1.9+0 .90 3.8                   MK31
 MAKZ eP      02:15:32.12  -0.2   40.1 310 b:2.3+0 .90 3.8                   MAKZ
 ZALV eP      02:15:32.30  -1.1   40.3 321                                   ZALV
      ePcP    02:17:33.20  -0.5 
 KURK eP      02:15:55.42  -0.4   43.0 315 b:3.4+0 .95 3.9                   KURK
 FITZ eP      02:16:24.60   0.2   46.6 183 b:7.1+0 .80 4.3                   FITZ
 KKAR eP      02:16:35.27   0.3   48.0 304 b:4.1+0 1.0 4.1                   KKAR
 KK31 eP      02:16:35.27   0.3   48.0 304 b:4.1+0 1.0 4.1                   KK31
 BRVK eP      02:16:38.27  -0.4   48.5 317 b:1.1+1 .95 4.5                   BRVK
 WB2  eP      02:16:40.77   0.0   48.8 172                                   WB2 
 AS01 eP      02:17:08.49   0.5   52.4 173                                   AS01
 ABKAReP      02:17:26.12  -0.4   55.0 312 b:5.6+0 1.2 4.2                   ABKA
 IM3  eP      02:17:56.19  -0.1   59.3  28                                   IM3 
 RND  eP      02:18:12.32   0.1   61.6  31 b:2.4+1 1.5 4.8                   RND 
 MDM  eP      02:18:12.59   0.0   61.6  29 b:7.0+0 .92 4.6                   MDM 
 IL1  eP      02:18:16.29  -0.2   62.2  29                                   IL1 
 FIA1 eP      02:19:11.03   0.8   70.7 330                                   FIA1
 RES  eP      02:19:23.60  -0.7   73.1  11 b:3.3+0 1.2 3.9                   RES 
 YKB5 eP      02:19:41.79  -0.9   76.3  25                                   YKB5
 YKW3 eP      02:19:41.99  -0.4   76.2  25 b:3.2+0 .70 4.2                   YKW3
 FCC  eP      02:20:33.87  -0.2   86.0  21 b:4.0+0 .85 4.3                   FCC 
 FFC  eP      02:20:36.08   0.1   86.4  27 b:2.7+0 .65 4.3                   FFC 



 Generated 2013 MAR 16 at 03:07 UTC

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