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Earthquake Hazards Program
Phase Data

Explanation of Parameters


      2 JUL 2007  (183)

     ot  = 01:31:09.97   +/-   0.27              RYUKYU ISLANDS, JAPAN           
     lat =      24.902   +/-    4.9
     lon =     126.745   +/-    4.2              MAGNITUDE 4.8 (GS)       
     dep =        36.1  (depth phases)

     170 km (105 miles) SSW of Naha, Okinawa, Japan
     265 km (165 miles) ENE of Ishigaki-jima, Ryukyu Islands, Japan
     1725 km (1070 miles) SW of TOKYO, Japan

     nph =   46 of  57    se = 0.80    FE=238                            A   

     error ellipse = (161.3,  0.0,  6.6; 71.3,  0.0,  5.4;  0.0,  0.0,  0.0)

 mb = 4.7 ( 22)  ML = 0.0 (  0)  mblg = 3.6 (  2)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 NACB ePn     01:32:18.00  -1.1    4.7 262 d:1.3+2     5.2X                  NACB
 TATO ePn     01:32:20.20   0.8    4.8 272 g:7.9-2 .90 3.4                   TATO
 YHNB ePn     01:32:22.35   1.3    4.9 268 d:1.6+2     5.4X                  YHNB
 INCN qPn     01:34:05.84   0.0   12.5 360                                   INCN
 MAJO qPn     01:34:42.59   0.5   15.2  38                                   MAJO
 ENH  qPn     01:34:54.55  -0.4   16.2 293                                   ENH 
 YSS  eP      01:36:34.73   0.4   25.4  26 b:1.5+1 .53 4.8                   YSS 
 CHTO eP      01:36:44.32   0.3   26.5 262 g:1.2-2 .90 3.8  b:1.2+1 .90 4.5  CHTO
 TLY  eP      01:37:32.38  -0.6   32.0 333 b:3.8+0 .58 4.5                   TLY 
 LSA  eP      01:37:32.68   0.0   31.9 287 b:9.5+0 .72 4.8                   LSA 
 YAK  eP      01:38:16.31  -0.9   37.2   2                                   YAK 
 MK31 eP      01:38:52.29  -0.8   41.4 313                                   MK31
 ZAA0 eP      01:39:00.29  -1.4   42.5 324                                   ZAA0
 FITZ eP      01:39:03.32  -0.7   42.8 182 b:6.2+0 .73 4.4                   FITZ
 KURK eP      01:39:19.84  -0.9   44.9 318 b:9.5+0 .70 4.8                   KURK
 WB2  eP      01:39:22.89  -0.6   45.2 170                                   WB2 
 WRAB eP      01:39:23.14  -0.3   45.2 170 b:7.0+0 .77 4.6                   WRAB
 TKM2 eP      01:39:25.50   0.4   45.4 306 b:7.7+0 .60 4.8                   TKM2
      epP     01:39:35.22  depth =  32.4 
 AAK  qP      01:39:30.26  -0.9   46.1 306                                   AAK 
 UCH  eP      01:39:32.08   1.0   46.1 305 b:8.2+0 .85 4.7                   UCH 
      epP     01:39:42.07  depth =  33.4 
 MBWA qP      01:39:32.60   0.4   46.3 189                                   MBWA
 EKS2 eP      01:39:35.21  -0.1   46.7 306 b:1.7+0 .76 4.1                   EKS2
 AML  eP      01:39:35.76   0.0   46.7 305 b:2.7+0 .58 4.4                   AML 
      epP     01:39:46.25  depth =  35.8 
 CTAO qP      01:39:50.10   0.1   48.6 155                                   CTAO
 BRVK eP      01:40:03.59  -0.4   50.5 319                                   BRVK
 KBL  eP      01:40:05.21   0.7   50.4 295 b:2.2+1 .95 5.1                   KBL 
 ARU  eP      01:40:55.63  -0.5   57.6 322 b:6.3+0 .70 4.8                   ARU 
 SVW2 eP      01:41:30.89   0.6   62.6  32                                   SVW2
 IMA2 eP      01:41:35.35   0.4   63.3  27                                   IMA2
 KDAK eP      01:41:40.78  -1.2   64.4  36 b:9.7+0 .80 4.9                   KDAK
      epP     01:41:51.50  depth =  34.9 
 PMR  eP      01:41:46.53  -3.7X  65.7  31 b:2.5+0 1.0 4.2                   PMR 
 MCK  eP      01:41:49.70   0.5   65.5  29                                   MCK 
 COLA eP      01:41:51.26   0.0   65.8  28                                   COLA
 EGAK eP      01:42:09.26   0.1   68.6  27 b:5.7+0 .45 4.9                   EGAK
      epP     01:42:20.54  depth =  37.3 
 KIV  eP      01:42:13.86   1.6   69.1 310 b:1.5+1 .90 5.0                   KIV 
      epP     01:42:24.62  depth =  35.0 
 DAWY eP      01:42:15.46   0.5   69.6  28                                   DAWY
 HKL  eP      01:42:20.08  -0.1   70.2  76                                   HKL 
 INK  eP      01:42:21.52   0.2   70.6  23 b:3.8+2 1.2 6.3X                  INK 
      eP      01:42:22.06   0.7X
      epP     01:42:33.66  depth =  41.0 
 MALT eP      01:42:40.99   0.1   73.8 305 b:3.9+0 .78 4.5                   MALT
 RES  eP      01:42:59.40   0.3   77.1  10                                   RES 
      epP     01:43:10.80  depth =  37.6 
 KWP  eP      01:43:15.97   0.8   79.9 320 b:5.9+0 .35 5.0                   KWP 
 FCC  eP      01:44:03.12  -2.6   90.0  20 b:9.0+0 .85 5.1                   FCC 
 FFC  eP      01:44:08.02   0.7   90.4  26 b:5.2+0 .90 4.8                   FFC 
 CMB  qP      01:44:11.53  -0.3   91.2  47                                   CMB 
 DLMT eP      01:44:14.48   0.6   91.7  37 b:5.7+0 .75 5.1                   DLMT
      epP     01:44:26.14  depth =  37.3 
 BW06 qP      01:44:30.19   0.7   95.0  38                                   BW06
 RSSD qP      01:44:39.26   0.6   97.1  34                                   RSSD



 Generated 2007 JUL  4 at 16:10 UTC

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

 


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