Phase Data

Explanation of Parameters


      1 FEB 2013  ( 32)

     ot  = 18:23:06.00   +/-   1.33              HOKKAIDO, JAPAN REGION          
     lat =      42.868   +/-    7.7
     lon =     142.792   +/-    9.9              MAGNITUDE 4.6 (GS)       
     dep =       131.0   +/-    5.9   

     34 km (21 miles) W of Obihiro, Hokkaido, Japan (pop 170,000)
     101 km (63 miles) ENE of Tomakomai, Hokkaido, Japan (pop 172,000)
     106 km (66 miles) SSE of Asahikawa, Hokkaido, Japan (pop 354,000)
     840 km (521 miles) NNE of TOKYO, Japan

     nph =  212 of 216    se = 0.65    FE=224                            A   

     error ellipse = (100.0, 10.0, 15.2;195.0, 21.0, 12.2;346.0, 65.0,  8.0)

 mb = 4.6 (153)  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
 ERM  ePn     18:23:26.60  -1.4    0.9 162                                   ERM 
 YSS  ePn     18:24:08.47   1.5    4.1 360                                   YSS 
      eSn     18:24:56.58  S res =   2.3 
 MAJO ePn     18:24:46.25  -2.9    7.2 211                                   MAJO
 MJB9 ePn     18:24:46.67  -2.5    7.2 211                                   MJB9
 USA0BePn     18:24:54.49  -4.4    8.0 283                                   USA0
 INU  ePn     18:25:07.33  -2.1    8.7 213                                   INU 
 JNU  ePn     18:26:11.02  -1.4   13.5 228                                   JNU 
 PETK ePn     18:26:19.14  -2.8   14.3  39                                   PETK
 PEA0BePn     18:26:19.41  -2.5   14.3  39                                   PEA0
 PET  ePn     18:26:22.75  -4.1   14.7  41                                   PET 
 MA2  eP      18:27:00.35   0.2   17.4  14 b:2.8+1 1.0 4.5                   MA2 
 SONA1eP      18:28:26.24   0.6   25.9 294                                   SONA
 TPUB eP      18:28:35.25   1.4   26.8 230 b:2.7+1 1.3 4.7                   TPUB
 BILL eP      18:28:44.95  -1.0   28.2  19 b:1.2+1 1.9 4.3                   BILL
 KIWB eP      18:28:46.66   0.0   28.3  57                                   KIWB
 ADK  eP      18:28:48.59  -0.6   28.6  57 b:7.4+1 1.2 5.3                   ADK 
 TIXI eP      18:28:56.00  -2.6   29.6 351 b:3.6+0 .60 4.3                   TIXI
 ENH  eP      18:28:56.27  -0.3   29.3 256 b:9.5+0 1.0 4.5                   ENH 
 ANM  eP      18:29:55.22   0.1   36.1  35 b:9.1+0 1.6 4.3                   ANM 
 ZAA0 eP      18:30:18.93  -0.3   39.0 307 b:3.6+0 .70 4.3                   ZAA0
 ZALV eP      18:30:19.75   0.5   39.0 307                                   ZALV
 CHGN eP      18:30:21.70   0.9   39.2  49 b:1.1+2 .96 5.6                   CHGN
 KWAJ eP      18:30:31.02   0.5   40.3 140 b:2.0+2 .95 5.8                   KWAJ
 SVW2 eP      18:30:31.12   1.0   40.3  41 b:4.0+1 .64 5.3                   SVW2
 IM3  eP      18:30:36.77  -0.1   41.1  34                                   IM3 
      ePcP    18:32:34.19   0.7 
 OHAK eP      18:30:42.17  -0.7   41.9  47 b:3.1+2 1.9 5.7                   OHAK
 RSO  eP      18:30:42.59   0.4   41.8  42                                   RSO 
 CAST eP      18:30:44.06   1.2   41.9  38 b:9.0+0 .76 4.6                   CAST
 PPLA eP      18:30:44.36   1.5   41.9  38 b:5.2+1 1.8 4.9                   PPLA
 MK01 eP      18:30:45.41   0.0   42.2 297                                   MK01
 MK31 eP      18:30:45.50   0.1   42.2 297                                   MK31
 MKAR eP      18:30:45.55   0.1   42.2 297 b:1.9+1 .50 5.1                   MKAR
 BPAW eP      18:30:47.00   0.4   42.3  37 b:7.2+0 .80 4.4                   BPAW
 MAKZ eP      18:30:47.04   0.0   42.4 297 b:2.9+0 1.0 3.9                   MAKZ
 MLY  eP      18:30:47.94   0.8   42.4  35 b:2.7+0 .80 4.0                   MLY 
      ePcP    18:32:37.57  -0.2 
 SUA  eP      18:30:48.99  -0.2   42.6  41 b:6.5+0 .76 4.4                   SUA 
      ePcP    18:32:38.51  -0.2 
 BRLK eP      18:30:49.96  -0.1   42.8  43 b:1.3+2 1.8 5.3                   BRLK
 TRF  eP      18:30:49.97   0.4   42.7  38 b:5.0+1 1.9 4.9                   TRF 
      ePP     18:32:38.72   8.9X
 RC01 eP      18:30:53.00  -0.3   43.2  41 b:5.5+1 2.0 4.9                   RC01
 SEW  eP      18:30:54.14  -1.3   43.4  42 b:1.1+2 1.8 5.3                   SEW 
 RND  eP      18:30:54.36  -0.3   43.3  38 b:8.0+0 .80 4.5                   RND 
      ePcP    18:32:40.79  -0.1 
 MCK  eP      18:30:54.41   0.3   43.3  37 b:9.2+0 .84 4.5                   MCK 
      ePcP    18:32:40.68   0.0 
 KURK eP      18:30:55.06   0.0   43.4 304 b:6.4+0 .75 4.4                   KURK
 GHO  eP      18:30:55.90   0.1   43.5  40 b:1.4+1 .80 4.7                   GHO 
      ePP     18:32:43.16   5.0X
 MDM  eP      18:30:55.92   0.2   43.5  35 b:8.7+0 .72 4.6                   MDM 
 WRH  eP      18:30:56.54   0.0   43.6  36 b:2.9+1 1.8 4.7                   WRH 
      ePP     18:32:39.75   0.6X
 COLA eP      18:30:57.83   0.8   43.6  35 b:1.8+1 .70 4.9                   COLA
 KNK  eP      18:30:58.09   0.2   43.7  40 b:3.9+1 1.6 4.8                   KNK 
 SML  eP      18:30:58.45   0.5   43.8  40 b:1.0+1 .80 4.6                   SML 
 HDA  eP      18:31:00.11  -0.4   44.1  36 b:1.1+1 .52 4.8                   HDA 
 ILB  eP      18:31:00.41   0.0   44.1  35                                   ILB 
 DHY  eP      18:31:00.44   0.1   44.0  38 b:1.0+1 .72 4.6                   DHY 
      ePcP    18:32:43.68   0.3 
 IL1  eP      18:31:00.48   0.1   44.1  35                                   IL1 
      ePcP    18:32:41.49  -1.8 
 CHTO eP      18:31:00.55   0.2   44.0 251 b:1.7+1 2.0 4.4                   CHTO
 SCM  eP      18:31:01.99   0.2   44.2  40 b:1.4+1 .84 4.7                   SCM 
 GLI  eP      18:31:03.45  -0.3   44.5  41 b:8.1+1 1.9 5.1                   GLI 
 PRP  eP      18:31:04.63   0.1   44.6  34 b:1.1+1 .68 4.7                   PRP 
 FYU  eP      18:31:05.31   0.9   44.6  33 b:3.7+1 1.7 4.8                   FYU 
 RIDG eP      18:31:07.94  -0.6   45.1  37 b:1.1+1 1.0 4.5                   RIDG
      epP     18:31:38.01  depth =  -0.3 
      ePcP    18:32:45.95  -0.9 
 KLU  eP      18:31:08.06   0.6   44.9  40 b:9.7+0 .64 4.7                   KLU 
 DIV  eP      18:31:08.65   0.2   45.1  41 b:3.0+1 1.3 4.8                   DIV 
      ePP     18:32:51.48  -3.6X
 HARP eP      18:31:09.92   0.9   45.1  39 b:2.0+1 .74 4.9                   HARP
 EYAK eP      18:31:10.32   1.0   45.2  41 b:1.4+2 1.8 5.4                   EYAK
 MID  eP      18:31:10.33   1.6   45.1  43 b:3.1+2 1.1 5.9                   MID 
 DOT  eP      18:31:10.67  -0.6   45.4  37 b:6.1+0 .60 4.5                   DOT 
 SCRK eP      18:31:11.01  -0.3   45.4  36 b:1.6+1 .48 5.0                   SCRK
 FAKI eP      18:31:19.70  -0.9   46.6 195 b:8.8+1 1.4 5.3                   FAKI
 DAWY eP      18:31:26.29  -0.3   47.4  36 b:9.9+0 1.6 4.3                   DAWY
 KDJ  eP      18:31:26.58   0.6   47.3 293 b:8.1+0 1.7 4.2                   KDJ 
 BRVK eP      18:31:29.03   0.5   47.6 309 b:1.0+1 1.5 4.3                   BRVK
 YKU2 eP      18:31:32.21  -2.0   48.4  42 b:8.6+2 .88 6.5                   YKU2
 INK  eP      18:31:36.84   0.0   48.8  29 b:6.3+0 .85 4.4                   INK 
 AAK  eP      18:31:37.80  -0.4   48.8 295 b:5.8+0 1.7 4.1                   AAK 
 TARA eP      18:31:41.02  -1.0   49.3 139 b:7.1+2 2.0 6.1                   TARA
 HYT  eP      18:31:41.31   1.8   49.1  40 b:2.2+1 .74 5.1                   HYT 
 KSM  eP      18:31:49.59  -0.5   50.4 224 b:4.5+1 1.5 5.1                   KSM 
 WHY  eP      18:31:50.30   1.1   50.3  39 b:2.4+1 1.7 4.7                   WHY 
      ePcP    18:33:05.86   0.0 
 ARSB eP      18:31:50.85   0.7   50.4 294 b:9.1+0 1.4 4.4                   ARSB
 KK31 eP      18:31:56.27  -0.2   51.3 297                                   KK31
 KKAR eP      18:31:56.30  -0.1   51.3 297                                   KKAR
 JIS  eP      18:31:56.71  -0.2   51.4  42 b:4.1+1 1.5 5.1                   JIS 
 ARU  eP      18:32:07.19  -0.1   52.8 316 b:4.6+0 .70 4.5                   ARU 
 GAR  eP      18:32:11.24  -0.4   53.3 292 b:2.0+1 1.7 4.7                   GAR 
 CHGR eP      18:32:18.51   0.0   54.3 292 b:5.8+0 .62 4.6                   CHGR
 SPA0 eP      18:32:23.05  -0.2   55.0 348                                   SPA0
 ABKAReP      18:32:24.47   0.2   55.1 308                                   ABKA
 RES  eP      18:32:34.68  -0.5   56.7  16 b:1.1+1 .60 5.0                   RES 
 PUH  eP      18:32:37.49   1.6   56.7  94 b:3.4+2 1.6 6.1                   PUH 
 CM01 ePcP    18:32:45.04   0.4   44.2 251                                   CM01
 YKB5 eP      18:32:45.38  -1.0   58.3  32                                   YKB5
 YKW3 eP      18:32:46.33   0.2   58.2  32 b:3.5+0 .70 4.4                   YKW3
 KEV  eP      18:32:46.69  -0.4   58.4 338 b:7.4+1 1.6 5.4                   KEV 
 ARE0 eP      18:32:50.48  -0.4   58.9 339 b:6.0+0 1.9 4.3                   ARE0
 ARCESeP      18:32:50.55  -0.3   58.9 339                                   ARCE
 TULEGeP      18:32:51.62  -0.8   59.2   8 b:1.1+1 .90 4.9                   TULE
 SSLB eS      18:32:55.91   4.5   26.2 231                                   SSLB
 WB2  eP      18:33:16.73  -2.0   63.0 189 b:1.3+1 1.5 4.6                   WB2 
      eP      18:33:16.85  -1.8 
      epP     18:33:51.60  depth =   1.4 
 LON  eP      18:33:22.36  -0.4   63.6  50 b:1.0+1 1.6 4.5                   LON 
 FIA1 eP      18:33:25.43  -0.6   64.2 332                                   FIA1
      eP      18:33:25.45  -0.6 
 KEBM eP      18:33:28.62   0.8   64.4  54 b:6.5+1 1.3 5.4                   KEBM
 H04A eP      18:33:29.67   0.5   64.6  52                                   H04A
 SUMG eP      18:33:31.00   0.1   64.9   0 b:1.3+1 .80 4.9                   SUMG
 C09A eP      18:33:31.55   0.2   64.9  47 b:6.0+0 .85 4.6                   C09A
 D08A eP      18:33:31.85  -0.1   65.0  48                                   D08A
 HAWA eP      18:33:32.10  -0.2   65.1  49 b:6.8+0 1.2 4.4                   HAWA
 NEW  eP      18:33:32.36  -1.2   65.3  46 b:3.6+0 .80 4.3                   NEW 
 E08A eP      18:33:33.70   0.1   65.3  49 b:5.8+0 .70 4.6                   E08A
 HUMO eP      18:33:34.41   0.3   65.4  54 b:2.3+1 2.0 4.8                   HUMO
 YBH  eP      18:33:39.52   1.0   66.0  55 b:1.7+1 1.8 4.7                   YBH 
 KMRM eP      18:33:40.69   0.2   66.3  57 b:3.5+1 1.5 5.0                   KMRM
 SCO  eP      18:33:40.74   0.3   66.4 355 b:2.8+1 1.7 4.9                   SCO 
 AS01 eP      18:33:42.08  -0.7   66.7 189                                   AS01
 KCPM eP      18:33:42.52  -0.5   66.7  57 b:3.4+1 1.5 5.0                   KCPM
 F10A eP      18:33:43.64   1.4   66.6  48 b:1.2+1 1.7 4.5                   F10A
 AS31 eP      18:33:43.75   0.9   66.7 189 b:1.0+0 1.1 3.6                   AS31
 MBWA eP      18:33:44.32  -1.4   67.2 203 b:2.5+1 1.5 4.9                   MBWA
 BMO  eP      18:33:46.45   0.1   67.3  49 b:1.6+0 .70 4.0                   BMO 
 MSO  eP      18:33:50.08   0.0   67.9  46 b:2.5+1 2.0 4.7                   MSO 
 KIV  eP      18:33:50.49  -0.1   67.9 310 b:8.5+0 .80 4.7                   KIV 
 ORV  eP      18:33:50.69  -0.7   68.1  56 b:1.9+0 .55 4.2                   ORV 
 FCC  eP      18:33:52.40  -0.2   68.3  28 b:2.4+1 1.8 4.7                   FCC 
 BEKR eP      18:33:54.69   0.0   68.6  55 b:2.6+0 .84 4.1                   BEKR
 NC303eP      18:33:56.17  -0.8   69.0 337                                   NC30
 NC405eP      18:33:56.53  -0.4   69.0 337                                   NC40
 NC204eP      18:33:57.40  -0.4   69.2 338                                   NC20
 NB201eP      18:33:57.52  -0.5   69.2 337                                   NB20
 HRY  eP      18:33:57.96   0.5   69.0  45                                   HRY 
 NBO00eP      18:33:58.40  -0.6   69.4 337                                   NBO0
 EGMT eP      18:33:59.11   0.5   69.2  43 b:5.0+0 .75 4.4                   EGMT
 NAO01eP      18:33:59.16  -0.6   69.5 337                                   NAO0
 LRM  eP      18:33:59.62   4.6   68.6  45                                   LRM 
 PNTR eP      18:34:00.72   0.1   69.5  55 b:4.1+0 1.0 4.2                   PNTR
 BOZ  eP      18:34:03.21   0.8   69.8  46 b:4.4+0 .70 4.4                   BOZ 
 WAKR eP      18:34:04.12   0.7   70.0  56 b:7.6+0 1.4 4.3                   WAKR
 KVN  eP      18:34:06.89   0.6   70.5  55 b:2.8+0 .72 4.2                   KVN 
 YHB  eP      18:34:07.89   0.4   70.7  46 b:5.7+0 .66 4.5                   YHB 
 NV01 eP      18:34:08.08   0.1   70.7  55                                   NV01
 NV11 eP      18:34:08.47   0.1   70.8  55 b:1.1+0 1.8 3.4                   NV11
 GCMT eP      18:34:08.84   0.7   70.8  45                                   GCMT
 H17A eP      18:34:11.45   0.4   71.2  46 b:3.7+0 .85 4.2                   H17A
 DGMT eP      18:34:12.79  -0.4   71.7  40 b:2.8+1 1.6 4.8                   DGMT
 FXWY eP      18:34:13.04   0.5   71.5  47 b:1.8+0 .75 3.9                   FXWY
 MOOW eP      18:34:13.64   0.6   71.6  47 b:2.3+0 .90 4.0                   MOOW
 R11A eP      18:34:17.34  -0.7   72.4  54 b:1.0+1 1.7 4.3                   R11A
 DAC  eP      18:34:18.83   0.0   72.5  57 b:6.8+0 1.7 4.1                   DAC 
 BW06 eP      18:34:20.67  -0.1   72.9  47 b:1.6+1 1.9 4.4                   BW06
 PDAR eP      18:34:20.73  -0.1   72.9  47                                   PDAR
 PD31 eP      18:34:20.88   0.1   72.9  47                                   PD31
 DUG  eP      18:34:20.95   0.7   72.8  51 b:2.8+0 .60 4.2                   DUG 
 TPNV eP      18:34:21.15   0.1   72.9  55 b:3.3+0 .65 4.3                   TPNV
 PSUT eP      18:34:23.11  -0.2   73.3  53 b:3.8+0 .40 4.5                   PSUT
 NLU  eP      18:34:24.20   0.4   73.4  51 b:2.9+0 .90 4.0                   NLU 
 MPU  eP      18:34:25.12   0.1   73.6  50 b:3.3+0 .66 4.2                   MPU 
 BUR08eP      18:34:28.78  -0.6   74.4 322                                   BUR0
 BUR04eP      18:34:29.35  -0.1   74.4 322                                   BUR0
 MSU  eP      18:34:29.78   0.7   74.3  52                                   MSU 
 RSSD eP      18:34:30.57  -1.5   74.8  43 b:1.4+1 1.7 4.4                   RSSD
 P17A eP      18:34:30.63   0.6   74.5  50 b:4.2+0 .70 4.3                   P17A
 MTPU eP      18:34:31.65   0.5   74.6  52 b:3.0+0 .84 4.1                   MTPU
 OJC  eP      18:34:31.78   0.3   74.8 326 b:2.7+1 1.9 4.7                   OJC 
 SRU  eP      18:34:32.50   0.3   74.8  50 b:7.7+0 .98 4.4                   SRU 
 BR231eP      18:34:39.44  -0.4   76.2 312                                   BR23
 PV04 eP      18:34:39.87  -0.5   76.2  50 b:2.4+1 1.7 4.7                   PV04
 PV21 eP      18:34:40.11   0.7   76.1  50 b:7.6+0 .74 4.6                   PV21
 PV16 eP      18:34:40.15  -0.4   76.3  50 b:2.0+1 1.6 4.6                   PV16
 PV19 eP      18:34:40.20  -0.2   76.3  50 b:5.7+0 .78 4.4                   PV19
 PV23 eP      18:34:40.22   0.4   76.1  50 b:6.9+0 .88 4.4                   PV23
 PV14 eP      18:34:40.34   0.3   76.2  50 b:9.8+0 1.1 4.5                   PV14
 PV20 eP      18:34:40.38   0.1   76.2  50 b:7.8+0 .74 4.6                   PV20
 PV07 eP      18:34:40.42  -0.5   76.4  50 b:5.5+0 1.1 4.2                   PV07
 PV12 eP      18:34:40.55  -0.4   76.4  50 b:2.6+1 1.9 4.7                   PV12
 PV17 eP      18:34:40.57   0.0   76.3  50 b:8.9+0 .66 4.7                   PV17
 PV05 eP      18:34:40.57  -0.5   76.4  50 b:7.8+0 .58 4.7                   PV05
 PV10 eP      18:34:40.71   0.4   76.2  50 b:1.8+1 .84 4.9                   PV10
 PV02 eP      18:34:40.97  -0.6   76.5  50 b:3.2+0 .84 4.1                   PV02
 PV11 eP      18:34:41.04   0.3   76.3  50 b:2.6+1 .24 5.6                   PV11
 N23A eP      18:34:41.06   1.5   76.1  47 b:8.8+0 .90 4.5                   N23A
 PV15 eP      18:34:41.41  -0.5   76.5  50 b:2.0+1 1.7 4.6                   PV15
 PV03 eP      18:34:41.62   0.6   76.4  50 b:4.5+0 .66 4.4                   PV03
 PV01 eP      18:34:41.66  -0.7   76.6  50 b:2.9+0 .90 4.0                   PV01
 PV13 eP      18:34:42.28   0.8   76.5  50 b:4.7+0 .84 4.3                   PV13
 WUAZ eP      18:34:42.74  -0.7   76.8  54 b:2.7+0 .60 4.2                   WUAZ
 SMCO eP      18:34:42.86  -0.6   76.8  48 b:2.7+0 .55 4.2                   SMCO
 Y14A eP      18:34:43.29  -0.5   76.9  56 b:1.5+1 1.8 4.5                   Y14A
 ISCO eP      18:34:44.83  -0.2   77.1  47 b:1.1+1 1.7 4.3                   ISCO
 113A eP      18:34:44.85  -0.7   77.2  57 b:3.8+0 .95 4.1                   113A
 MVCO eP      18:34:45.54  -0.7   77.3  51 b:1.7+1 1.6 4.5                   MVCO
 X16A eP      18:34:47.14  -0.3   77.5  55 b:5.5+0 1.5 4.1                   X16A
 EYMN eP      18:34:47.29  -0.6   77.7  34 b:1.7+1 1.3 4.7                   EYMN
 KHC  eP      18:34:50.88   0.5   78.1 329 b:8.0+0 1.8 4.2                   KHC 
 GEA0 eP      18:34:51.31  -0.2   78.3 329                                   GEA0
 ECSD eP      18:34:53.11  -0.5   78.7  39 b:4.6+0 .95 4.2                   ECSD
 NWAO eP      18:34:54.81  -0.2   79.0 202 b:5.7+1 1.6 5.1                   NWAO
 VTS  eP      18:34:56.46   0.7   79.1 319 b:2.3+0 .80 4.0                   VTS 
 DIVS eP      18:34:57.68  -0.1   79.5 322 b:1.1+1 1.5 4.4                   DIVS
 T25A eP      18:34:59.30   0.2   79.6  48 b:1.3+1 1.5 4.5                   T25A
 TX31 eP      18:35:30.20  -0.4   85.7  53                                   TX31
      eP      18:35:30.87   0.2 



 Generated 2013 FEB  1 at 19:34 UTC

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