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Earthquake Hazards Program
Phase Data

Explanation of Parameters


      7 JUL 2007  (188)

     ot  = 20:35:47.13   +/-   2.17              RYUKYU ISLANDS, JAPAN           
     lat =      28.375   +/-   20.0
     lon =     130.208   +/-   19.9              MAGNITUDE 4.4 (GS)       
     dep =        70.6   +/-   18.4   

     350 km (220 miles) NE of Naha, Okinawa, Japan
     360 km (225 miles) S of Kagoshima, Kyushu, Japan
     410 km (255 miles) SSW of Miyazaki, Kyushu, Japan
     1215 km (750 miles) SW of TOKYO, Japan

     nph =   18 of  18    se = 1.23    FE=238                            C   

     error ellipse = (138.1, 13.0, 40.4;252.7, 61.0, 30.1; 41.8, 25.5, 13.0)

 mb = 4.4 ( 12)  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
 YHNB ePn     20:37:49.13  -1.6    8.7 247                                   YHNB
 NACB qPn     20:37:51.99   0.5    8.8 244                                   NACB
 BJT  qP      20:39:34.71   1.9   16.4 319 g:1.5-2 .90 3.5X b:1.6+1 .93 4.2  BJT 
 QIZ  qP      20:40:24.26   1.4   20.8 248 b:3.8+1 1.4 4.5                   QIZ 
 YSS  qP      20:40:24.40  -0.1   21.0  25 b:1.1+1 .96 4.2                   YSS 
 LSA  eP      20:42:25.90   0.5   34.1 282 b:2.3+0 .55 4.3                   LSA 
 MA2  qP      20:42:26.02   0.2   34.2  19                                   MA2 
 MK31 eP      20:43:26.34  -0.7   41.5 310                                   MK31
 ZAA0 eP      20:43:27.42  -1.0   41.7 321                                   ZAA0
 KURK eP      20:43:50.79  -0.8   44.5 315 b:1.6+0 .35 4.2                   KURK
 TKM2 eP      20:44:02.69  -0.4   45.9 304 b:4.6+0 .85 4.4                   TKM2
 UCH  eP      20:44:08.59  -1.1   46.7 303 b:4.3+0 .85 4.4                   UCH 
 EKS2 qP      20:44:11.62  -1.8   47.3 303 b:2.0+0 .89 4.1                   EKS2
 BRVK eP      20:44:33.87   0.1   49.9 317 b:1.3+1 .85 5.0                   BRVK
 KBL  eP      20:44:49.45   0.8   51.9 293 b:1.1+1 1.0 4.8                   KBL 
 ARU  eP      20:45:23.55  -0.5   56.8 321 b:3.7+0 .40 4.8                   ARU 
 MALT eP      20:47:19.44   2.2   74.3 305 b:2.2+0 .55 4.3                   MALT
 AKBB eP      20:47:21.35   0.3   75.0 320                                   AKBB



 Generated 2007 JUL 10 at 22:25 UTC

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

 


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