Phase Data

Explanation of Parameters


     24 FEB 2013  ( 55)

     ot  = 04:55:19.94   +/-   0.86              NEAR EAST COAST OF HONSHU, JAPAN
     lat =      36.991   +/-   12.1
     lon =     140.619   +/-   12.0              MAGNITUDE 4.6 (GS)       
     dep =        56.7   +/-    4.8   

     24 km (15 miles) WSW of Iwaki, Honshu, Japan (pop 354,000)
     50 km (31 miles) SSE of Koriyama, Honshu, Japan (pop 338,000)
     70 km (44 miles) N of Mito, Honshu, Japan (pop 262,000)
     164 km (102 miles) NNE of TOKYO, Japan

     nph =   72 of  72    se = 0.42    FE=228                            A   

     error ellipse = (138.0, 18.0, 22.1;230.0,  6.0, 15.5;337.0, 70.0,  1.1)

 mb = 4.6 ( 41)  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
 MAJO ePn     04:55:50.49  -0.7    2.0 258                                   MAJO
 MJB9 ePn     04:55:50.55  -0.7    2.0 258                                   MJB9
 INU  ePn     04:56:09.48  -0.1    3.3 242                                   INU 
 ERM  ePn     04:56:35.34  -2.3    5.4  21                                   ERM 
      eSn     04:57:38.88  S res =   0.6 
 USA0BePn     04:57:37.81   0.6    9.7 320                                   USA0
 KS01 ePn     04:57:45.23   2.2   10.2 277                                   KS01
 YOJ  eP      04:59:44.07   0.8   19.6 235 b:1.5+2 1.1 5.2                   YOJ 
 MA2  eP      05:00:24.80   0.0   23.5  13 b:1.8+1 .70 4.6                   MA2 
 ULN  eP      05:00:54.49  -0.8   26.8 305 b:3.2+0 .90 3.9                   ULN 
 SONA1eP      05:00:57.95  -1.1   27.3 304                                   SONA
 BILL eP      05:01:59.68  -0.9   34.3  17 b:5.8+0 .90 4.5                   BILL
 NIKH eP      05:02:35.02   0.4   38.3  49 b:3.8+2 .64 6.5                   NIKH
 ZALV eP      05:03:00.57  -0.5   41.5 313                                   ZALV
 ZAA0 eP      05:03:00.67  -0.4   41.5 313 b:1.2+1 1.2 4.5                   ZAA0
 MK01 eP      05:03:18.14  -0.3   43.6 302                                   MK01
 MK31 eP      05:03:18.62   0.1   43.6 302                                   MK31
 MAKZ eP      05:03:20.49   0.3   43.8 302 b:5.2+0 .90 4.3                   MAKZ
 RDOG eP      05:03:21.53   1.6   43.8  27 b:7.7+0 .76 4.5                   RDOG
 KURK eP      05:03:32.78  -0.3   45.5 308 b:2.5+1 1.0 5.0                   KURK
 NRN  eP      05:04:04.02   1.0   49.3 296 b:3.8+0 1.0 4.4                   NRN 
 IL1  eP      05:04:07.00  -0.2   49.9  32                                   IL1 
 AAK  eP      05:04:08.26   0.0   50.0 298 b:7.1+0 1.2 4.6                   AAK 
 BRVK eP      05:04:10.03   0.3   50.2 312 b:1.2+1 1.1 4.8                   BRVK
 KK31 eP      05:04:27.76  -0.1   52.6 300                                   KK31
 KKAR eP      05:04:27.97   0.1   52.6 300                                   KKAR
 GAR  eP      05:04:39.44   0.0   54.1 295 b:2.4+1 1.3 5.1                   GAR 
 CHGR eP      05:04:46.44   0.0   55.1 295 b:6.6+1 1.3 5.5                   CHGR
 ARU  eP      05:04:51.71  -0.5   56.0 319 b:1.5+1 1.0 5.0                   ARU 
 WB2  eP      05:04:58.30  -1.0   56.9 187                                   WB2 
      eP      05:04:58.98  -0.4 
 ABKAReP      05:05:02.77  -0.2   57.5 310                                   ABKA
 AS01 eP      05:05:24.81  -0.4   60.7 187                                   AS01
 AS31 eP      05:05:25.40   0.2   60.7 187 b:5.4+0 1.5 4.4                   AS31
 RES  eP      05:05:39.25   0.3   62.8  14 b:3.6+0 .65 4.6                   RES 
 GYA0BeP      05:05:43.37   0.4   63.3 299 b:7.7+0 1.0 4.7                   GYA0
 ARCESeP      05:05:45.45  -0.3   63.8 339                                   ARCE
 FIA1 eP      05:06:16.07  -0.1   68.6 332                                   FIA1
      eP      05:06:16.52   0.3 
 KIV  eP      05:06:28.43   0.1   70.5 311 b:1.9+1 1.0 5.0                   KIV 
 SUMG eP      05:06:29.90   0.0   70.7 360 b:9.3+0 .90 4.7                   SUMG
 NC405eP      05:06:47.69  -0.1   73.8 337                                   NC40
 NB201eP      05:06:48.09  -0.8   74.0 337                                   NB20
 AK11 eP      05:06:48.62  -0.6   74.0 322                                   AK11
 KIEV eP      05:06:48.82  -0.1   73.9 322 b:7.8+0 .90 4.6                   KIEV
 AKBB eP      05:06:49.02   0.1   73.9 322 b:7.5+0 .85 4.7                   AKBB
 NC204eP      05:06:49.30   0.5   73.9 337                                   NC20
 FFC  eP      05:06:49.68   0.0   74.1  32 b:3.3+0 .75 4.3                   FFC 
 LRM  eP      05:06:50.72   1.0   74.0  43                                   LRM 
 FCC  eP      05:06:51.22   0.2   74.3  26 b:1.8+1 1.7 4.7                   FCC 
 BOZ  eP      05:06:56.85   0.4   75.2  44 b:2.1+0 .70 4.2                   BOZ 
 KVN  eP      05:06:57.44   0.2   75.3  52 b:1.8+1 1.9 4.7                   KVN 
 H17A eP      05:07:04.78   0.4   76.6  44 b:5.5+0 1.0 4.5                   H17A
 R11A eP      05:07:08.45  -0.1   77.3  51 b:4.4+0 1.2 4.3                   R11A
 MWC  eP      05:07:12.04  -1.5   78.2  56 b:3.0+1 .80 5.3                   MWC 
 BUR08eP      05:07:12.21   0.3   77.9 321                                   BUR0
 BUR04eP      05:07:12.23   0.3   78.0 321                                   BUR0
 BR131eP      05:07:14.60  -0.1   78.4 311                                   BR13
 OJC  eP      05:07:15.97  -0.1   78.7 326 b:1.1+1 1.1 4.7                   OJC 
 P17A eP      05:07:21.16   0.1   79.6  48 b:1.3+1 1.6 4.6                   P17A
 SRU  eP      05:07:22.95  -0.1   79.9  48 b:3.4+0 .78 4.3                   SRU 
 MORC eP      05:07:23.52   0.2   80.1 327 b:5.8+0 1.2 4.4                   MORC
 CLL  eP      05:07:27.75   0.4   80.8 330 b:6.6+0 .90 4.6                   CLL 
 PV14 eP      05:07:30.30  -0.2   81.3  48 b:8.5+0 1.1 4.6                   PV14
 PV17 eP      05:07:30.98   0.0   81.4  48                                   PV17
 PV05 eP      05:07:31.41   0.0   81.5  48 b:2.6+1 1.4 5.0                   PV05
 PV01 eP      05:07:32.71   0.0   81.7  48 b:5.2+0 1.1 4.4                   PV01
 GEA0 eP      05:07:35.92  -0.1   82.4 328                                   GEA0
 ANMO eP      05:07:49.94  -0.2   85.1  49 b:6.9+0 1.3 4.6                   ANMO
 ECH  eP      05:07:52.34   0.4   85.6 331 b:9.7+0 1.1 4.9                   ECH 
 TX31 eP      05:08:16.61   0.0   90.6  52                                   TX31
      eP      05:08:16.86   0.2 



 Generated 2013 FEB 24 at 05:16 UTC

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