Link to USGS home page.
Earthquake Hazards Program
Phase Data

Explanation of Parameters


      9 JUL 2007  (190)

     ot  = 13:06:45.10   +/-   1.69              BONIN ISLANDS, JAPAN REGION     
     lat =      28.372   +/-   13.2
     lon =     138.849   +/-   11.4              MAGNITUDE 4.6 (GS)       
     dep =       468.7   +/-   17.8   

     360 km (225 miles) WNW of Chichi-shima, Bonin Islands, Japan
     465 km (290 miles) NNW of Iwo-jima, Volcano Islands, Japan
     530 km (330 miles) S of Hachijo-jima, Izu Islands, Japan
     810 km (510 miles) S of TOKYO, Japan

     nph =   28 of  34    se = 1.15    FE=212                            B   

     error ellipse = (318.5, 52.4, 31.9;154.8, 36.5, 17.5; 58.9,  7.9, 12.0)

 mb = 4.6 ( 14)  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     13:08:39.39  -3.1    8.2 356 d:1.9+2     6.9X L:1.9-1 .40 4.7X MAJO
                                           g:1.1-1 .75 4.0X b:9.2+1 .40 5.4 
 KS15 eP      13:09:36.30   3.0   12.9 317                                   KS15
 INCN eP      13:09:48.96   7.2X  13.7 315                                   INCN
 YHNB eP      13:10:07.60   0.3   16.1 261 g:2.9-2 1.0 3.8X b:1.4+1 .55 4.7  YHNB
 YSS  eP      13:10:35.90   1.7   18.8   8 b:2.3+1 .80 4.8                   YSS 
 MA2  eP      13:12:34.57   1.3   32.2  11 b:4.1+1 .90 4.9                   MA2 
 YAK  eP      13:12:50.01   0.2   34.2 352                                   YAK 
 TLY  eP      13:12:58.00   0.4   35.1 321 b:1.0+1 .70 4.4                   TLY 
 CHTO eP      13:13:19.03  -0.1   37.6 264 b:1.0+1 .90 4.3                   CHTO
 KULM eP      13:14:01.61   0.4   42.9 245                                   KULM
 BILL eP      13:14:01.76   0.9   42.9  15 b:3.4+1 1.0 4.7                   BILL
 TIXI eP      13:14:06.11  -0.5   43.7 355 b:1.2+1 .70 4.5                   TIXI
 ZAA0 eP      13:14:28.50  -0.9   46.6 319                                   ZAA0
 UNV          13:14:31.60  -0.4   46.9  41                                   UNV 
 KURK eP      13:14:54.08  -0.8   50.0 314 b:5.8+1 1.4 4.8                   KURK
 TKM2 P       13:15:12.37   0.4   52.3 304 b:3.7+0 .65 3.9                   TKM2
      e       13:15:21.50
 MBWA e       13:15:14.28   0.1   52.6 203 b:5.0+1 .65 5.0                   MBWA
 EKS2 P       13:15:21.07  -0.5   53.6 304 b:7.1+0 .75 4.1                   EKS2
 AML  P       13:15:21.62  -1.2   53.7 303 b:1.4+1 .70 4.4                   AML 
 SVW2 eP      13:15:23.84   1.3   53.8  33                                   SVW2
 PMR  eP      13:15:43.72  -0.7   57.0  33                                   PMR 
 MCK  eP      13:15:45.70   0.2   57.1  30                                   MCK 
 BMRM P       13:15:59.94   0.4   59.2  34                                   BMRM
 EGAK eP      13:16:08.02  -0.2   60.5  29                                   EGAK
 ARU  eP      13:16:14.55  -1.2   61.6 322 b:1.9+1 .90 4.6                   ARU 
 INK  eP      13:16:24.79  -0.5   63.1  25                                   INK 
 RES  eP      13:17:16.82  -0.1   71.5  13                                   RES 
 HRY  eP      13:18:09.36  -5.0X  81.8  41                                   HRY 
 LRM  eP      13:18:14.96  -0.2   81.9  42                                   LRM 
 BOZ  eP      13:18:17.91  -0.1   82.5  42                                   BOZ 
 MSNY ePdif   13:19:36.90  -5.6X 100.8  24                                   MSNY
 GLAT         13:19:46.81   1.5X 101.4  38                                   GLAT
 SDMD ePdif   13:20:04.47   3.9X 104.8  28 b:6.1+1 .84 6.5X                  SDMD



 Generated 2007 JUL  9 at 13:33 UTC

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

 


FirstGov button  Take Pride in America button