Phase Data

Explanation of Parameters


     21 MAY 2013  (141)

     ot  = 11:25:51.13   +/-   1.75              EASTERN HONSHU, JAPAN           
     lat =      36.897   +/-   10.2
     lon =     139.347   +/-    8.3              MAGNITUDE 4.5 (GS)       
     dep =         9.7   +/-    1.9   

     61 km (38 miles) NW of Utsunomiya, Honshu, Japan (pop 457,000)
     62 km (39 miles) NNE of Maebashi, Honshu, Japan (pop 318,000)
     107 km (66 miles) WSW of Koriyama, Honshu, Japan (pop 338,000)
     139 km (86 miles) NNW of TOKYO, Japan (pop 8,489,000)

     nph =   57 of  57    se = 0.86    FE=227                            A   

     error ellipse = (149.0,  0.0, 17.1;239.0,  0.0, 10.6;346.0, 89.0,  2.9)

 mb = 4.5 ( 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
 MJAR ePg     11:26:07.66  -2.3  127.5 305                                   MJAR
      eSg     11:26:21.11  S res =  -1.6 
 MAJO ePg     11:26:09.23  -0.8    1.0 250                                   MAJO
 MJB9 ePg     11:26:09.26  -0.8    1.0 250                                   MJB9
 INU  ePn     11:26:32.31   1.4    2.4 231                                   INU 
      eSn     11:27:05.24  S res =   4.5 
 JHJ2 ePn     11:26:50.64   1.0    3.8 174                                   JHJ2
 ERM  ePn     11:27:18.69   0.1    5.9  29                                   ERM 
 JNU  ePn     11:27:47.89   1.7    7.9 244                                   JNU 
 KSAR ePn     11:28:05.18   1.7    9.2 277                                   KSAR
 KS15 ePn     11:28:06.57   2.9    9.2 277                                   KS15
 MA2  eP      11:31:03.99  -0.6   23.9  14 b:9.7+0 .90 4.4                   MA2 
 ULN  eP      11:31:25.31   0.4   26.1 305 b:3.3+0 .80 4.1                   ULN 
 SONM eP      11:31:28.71   0.0   26.5 305                                   SONM
 TIXI eP      11:32:45.06  -0.2   35.2 354                                   TIXI
 ZALV eP      11:33:34.55   2.2   40.8 313                                   ZALV
 KURK eP      11:34:03.58  -0.7   44.7 308 b:5.2+0 1.0 4.4                   KURK
 IMAR eP      11:34:27.44   0.5   47.6  31                                   IMAR
 RSO  eP      11:34:28.98  -1.5   48.0  38                                   RSO 
 MLY  eP      11:34:37.20   0.7   48.8  32 b:4.3+0 .88 4.5                   MLY 
 BRVK eP      11:34:41.61   0.0   49.5 312 b:4.8+0 .90 4.5                   BRVK
 MCK  eP      11:34:42.63  -0.1   49.7  34 b:4.3+0 1.0 4.4                   MCK 
 MDM  eP      11:34:44.23  -0.4   49.9  32 b:5.7+0 .88 4.6                   MDM 
 SML  eP      11:34:44.98  -1.0   50.1  36 b:1.0+1 1.1 4.7                   SML 
 DHY  eP      11:34:47.76  -0.8   50.4  34 b:4.0+0 1.1 4.3                   DHY 
 HDA  eP      11:34:48.11  -0.9   50.5  33 b:7.7+0 1.0 4.6                   HDA 
 ILAR eP      11:34:48.14  -0.9   50.5  32                                   ILAR
 ILB  eP      11:34:48.39  -0.6   50.5  32 b:4.0+0 .85 4.4                   ILB 
 SCM  eP      11:34:50.19   0.6   50.5  36 b:8.6+0 .96 4.7                   SCM 
 PRP  eP      11:34:53.53   0.5   51.0  31 b:3.9+0 .88 4.3                   PRP 
 KLU  eP      11:34:55.10   0.2   51.3  36 b:6.1+0 1.0 4.5                   KLU 
 KKAR eP      11:34:58.65  -0.2   51.8 300                                   KKAR
      eP      11:34:59.11   0.3 
 KK31 eP      11:34:58.97   0.1   51.8 300 b:9.7+0 1.0 4.7                   KK31
 BCAR eP      11:35:07.74   0.4   52.9  34                                   BCAR
 INK  eP      11:35:23.05  -1.0   55.3  27 b:3.9+0 .90 4.4                   INK 
 ARU  eP      11:35:25.30   0.3   55.4 318 b:5.5+0 .90 4.6                   ARU 
 WRAB eP      11:35:34.47  -0.6   56.7 186 b:6.3+0 .95 4.6                   WRAB
 ABKAReP      11:35:34.64  -0.5   56.8 310                                   ABKA
      eP      11:35:35.50   0.4 
 WB2  eP      11:35:35.05  -0.1   56.7 186 b:5.3+0 .80 4.6                   WB2 
 ASAR eP      11:36:00.99  -0.1   60.5 186                                   ASAR
 RES  eP      11:36:18.54   0.0   63.1  14 b:8.2+0 1.1 4.8                   RES 
 YKA  eP      11:36:28.69  -0.6   64.8  30                                   YKA 
 WVOR eP      11:37:27.68   1.5   73.8  49 b:1.9+0 1.1 4.1                   WVOR
 FFC  eP      11:37:32.14   1.3   74.7  32 b:3.9+0 .95 4.4                   FFC 
 EGMT eP      11:37:33.22  -2.2   75.5  40 b:9.9+0 .95 4.8                   EGMT
 HRY  eP      11:37:33.69  -0.2   75.2  42                                   HRY 
 BOZ  eP      11:37:38.25  -0.1   76.0  43 b:4.5+0 1.0 4.5                   BOZ 
 NVAR eP      11:37:41.32   0.3   76.4  52                                   NVAR
 KWP  eP      11:37:44.15  -1.4   77.3 324 b:6.0+1 .60 5.9                   KWP 
 H17A eP      11:37:45.58  -0.7   77.3  44 b:4.9+0 .95 4.6                   H17A
 BURAReP      11:37:46.73   0.4   77.4 321                                   BURA
 IMW  eP      11:37:47.32   0.4   77.4  44 b:4.5+0 1.1 4.4                   IMW 
 BRTR eP      11:37:49.94   1.6   77.7 311                                   BRTR
 PDAR eP      11:37:55.80   0.6   78.9  44                                   PDAR
 MTPU eP      11:38:03.87   0.3   80.4  49 b:2.6+0 .92 4.2                   MTPU



 Generated 2013 MAY 21 at 11:44 UTC

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