Phase Data

Explanation of Parameters


      7 FEB 2013  ( 38)

     ot  = 22:48:00.30   +/-   1.43              IZU ISLANDS, JAPAN REGION       
     lat =      29.253   +/-   13.1
     lon =     142.003   +/-   11.2              MAGNITUDE 4.8 (GS)       
     dep =        33.3   +/-    5.6   

     241 km (150 miles) N of Chichi-shima, Bonin Islands, Japan
     477 km (296 miles) SSE of Hachijo-jima, Izu Islands, Japan
     500 km (310 miles) N of Iwo Jima, Volcano Islands, Japan
     744 km (462 miles) SSE of TOKYO, Japan

     nph =   45 of  45    se = 0.70    FE=211                            A   

     error ellipse = (146.0,  8.0, 22.9;240.0, 21.0, 14.3; 36.0, 66.0,  6.4)

 mb = 4.8 ( 29)  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     22:49:52.90  -0.5    7.9 337                                   MAJO
 MJB9 ePn     22:49:52.95  -0.5    7.9 337                                   MJB9
 YULB eP      22:52:25.31   1.2   19.4 257 b:9.2+1 1.4 4.9                   YULB
 SONA1eP      22:54:32.63  -0.4   33.1 314                                   SONA
 PBKT eP      22:55:30.04   0.8   39.6 261 b:1.2+1 .68 4.8                   PBKT
 CHTO eP      22:55:36.53   0.4   40.5 265 b:1.3+1 .80 4.7                   CHTO
 CM01 eP      22:55:37.44   0.1   40.6 265                                   CM01
 KULM eP      22:56:19.96   1.2   45.8 247 b:1.2+1 .80 4.9                   KULM
 JAGI eP      22:56:21.16  -0.4   46.1 220 b:1.7+1 1.1 4.9                   JAGI
 ZALV eP      22:56:33.17  -0.9   47.8 318                                   ZALV
 ZAA0 eP      22:56:33.70  -0.4   47.8 318 b:1.8+1 1.1 5.0                   ZAA0
 MK01 eP      22:56:43.15  -0.5   49.0 308                                   MK01
 MKAR eP      22:56:43.32  -0.4   49.0 308 b:3.7+1 .75 5.5                   MKAR
 MK31 eP      22:56:43.32  -0.4   49.0 308                                   MK31
 MAKZ eP      22:56:44.94  -0.5   49.2 308 b:6.5+0 1.2 4.5                   MAKZ
 WB2  eP      22:56:46.40  -1.0   49.5 190                                   WB2 
      eP      22:56:47.70   0.3 
 WRAB eP      22:56:47.74   0.4   49.5 190 b:7.7+0 .80 4.8                   WRAB
 KURK eP      22:57:01.49  -0.1   51.4 313 b:2.6+1 1.0 5.1                   KURK
 AS01 eP      22:57:14.59  -0.7   53.2 189                                   AS01
 AAK  eP      22:57:27.96  -0.1   54.9 304 b:4.6+0 1.1 4.4                   AAK 
 BRVK eP      22:57:39.11   0.7   56.4 317 b:1.8+1 .90 5.1                   BRVK
 KK31 eP      22:57:47.80   0.0   57.7 305                                   KK31
 KKAR eP      22:57:47.80   0.0   57.7 305                                   KKAR
 NIL  eP      22:57:48.72   0.0   57.8 293 b:6.0+0 .75 4.7                   NIL 
 GAR  eP      22:57:55.28   0.0   58.8 300 b:7.6+0 .86 4.8                   GAR 
 CHGR eP      22:58:01.59  -0.3   59.7 300 b:2.5+1 .70 5.4                   CHGR
 KBL  eP      22:58:09.97  -0.5   60.9 296                                   KBL 
 ABKAReP      22:58:27.20   0.2   63.5 314                                   ABKA
 GYA0BeP      22:58:59.52   1.8   68.2 302 b:5.9+0 .85 4.7                   GYA0
 ORV  eP      22:59:46.09  -1.5   76.6  52 b:4.4+0 1.1 4.4                   ORV 
 CMB  eP      22:59:56.72   0.8   78.1  53 b:1.1+1 1.3 4.7                   CMB 
 MFID eP      22:59:57.27  -1.3   78.5  47 b:4.1+0 .85 4.5                   MFID
 KVN  eP      23:00:03.22   1.1   79.2  51 b:5.1+0 .80 4.6                   KVN 
 NV01 eP      23:00:03.90   0.9   79.3  52                                   NV01
 SIRT eP      23:00:06.23   1.4   79.7 307 b:1.9+1 .92 5.1                   SIRT
 FFC  eP      23:00:06.23   0.1   80.0  32 b:2.9+0 .80 4.3                   FFC 
 YHB  eP      23:00:11.82   1.3   80.7  44 b:6.9+0 .90 4.7                   YHB 
 SUW  eP      23:00:15.18  -0.2   81.7 329 b:1.4+1 .80 5.0                   SUW 
 H17A eP      23:00:16.72   3.1   81.3  44 b:4.4+0 .85 4.5                   H17A
 PDAR eP      23:00:21.84   0.3   82.8  45                                   PDAR
 SRU  eP      23:00:27.02  -1.6   84.2  48 b:8.9+0 .70 5.1                   SRU 
 BR131eP      23:00:30.27   0.5   84.4 313                                   BR13
 BUR04eP      23:00:30.29  -0.9   84.8 323                                   BUR0
 K22A eP      23:00:32.35   1.1   84.7  44 b:9.2+0 .85 5.0                   K22A



 Generated 2013 FEB  7 at 23:08 UTC

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