Link to USGS home page.
Earthquake Hazards Program
Phase Data

Explanation of Parameters


     13 SEP 2008  (257)

     ot  = 20:21:35.48   +/-   0.64              RYUKYU ISLANDS, JAPAN           
     lat =      29.081   +/-    4.2
     lon =     130.068   +/-    4.0              MAGNITUDE 4.9 (GS)       
     dep =        42.5   +/-    6.0   

     285 km (175 miles) S of Kagoshima, Kyushu, Japan
     345 km (215 miles) SSW of Miyazaki, Kyushu, Japan
     400 km (250 miles) NE of Naha, Okinawa, Japan
     1170 km (720 miles) SW of TOKYO, Japan

     nph =   79 of  91    se = 0.86    FE=238                            A   

     error ellipse = (278.2, 72.7,  9.4;144.6, 12.1,  7.1; 51.9, 12.2,  4.8)

 mb = 4.9 ( 56)  ML = 4.4 (  2)  mblg = 3.9 ( 14)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 JOW  ePn     20:22:16.44  -0.6    2.7 216 d:3.0+2     5.1X L:5.0+0 .75 4.7  JOW 
      eSn     20:22:53.04  S res =   4.1X  g:5.6+0 1.1 4.9 
 JNU  ePn     20:22:37.29   1.8    4.1  10 L:3.3-1 1.0 4.1  g:3.2-1 1.0 3.8  JNU 
      eSn     20:23:24.35  S res =   2.2X
 TATO ePn     20:23:40.70   2.3    8.7 244                                   TATO
 NACB ePn     20:23:43.02  -0.1    9.0 239                                   NACB
 INCN ePn     20:23:45.30   4.4X   8.9 342 d:6.5+1     6.2X L:7.2-2 1.3 4.4X INCN
                                           g:5.2-2 1.0 3.6  b:9.7+1 1.3 5.7X
 SSLB ePn     20:23:56.22   3.4X   9.7 239 d:3.9+1     6.1X L:1.2-1 .70 4.8X SSLB
                                           g:1.2-1 1.0 4.0  b:7.3+1 .70 5.9X
 MAJO ePn     20:23:57.61  -0.4   10.1  41 g:2.9-2 .90 3.5  b:1.8+1 .60 5.4X MAJO
 MDJ  ePn     20:25:10.53  -0.6   15.5 359 g:1.1-2 .95 3.4  b:5.4+1 1.5 4.5  MDJ 
 BJT  ePn     20:25:17.75   2.9X  15.8 317 g:7.3-2 .95 4.2  b:4.6+2 1.7 5.4  BJT 
 ASAJ ePn     20:25:40.74  -2.0   18.0  30 g:1.4-2 .95 3.6  b:1.0+1 .75 4.0  ASAJ
 ENH  ePn     20:25:43.12   1.5   17.9 279 g:5.6-2 1.0 4.1  b:1.9+2 1.5 5.0  ENH 
 YSS  ePn     20:26:09.47  -1.6   20.4  26 g:6.7-2 1.1 4.3  b:6.7+1 1.1 4.9  YSS 
 GUMO qP      20:26:11.50  -0.1   20.6 135                                   GUMO
 QIZ  ePn     20:26:15.57  -2.4   21.0 246 g:4.7-2 1.3 4.1  b:5.3+1 1.3 4.7  QIZ 
 ULN  ePn     20:27:02.38  -0.7   25.8 323 g:2.5-2 1.1 4.0  b:1.2+1 .70 4.6  ULN 
 KKM  ePn     20:27:09.19   1.0   26.4 212 g:2.3-2 1.0 4.0  b:2.3+1 1.0 4.7  KKM 
 CM31 eP      20:27:36.36  -6.6X  30.3 257                                   CM31
 TLY  eP      20:27:40.00   0.4   30.0 326 g:2.1-2 1.3 3.9  b:2.1+1 1.3 4.7  TLY 
 CHTO ePn     20:27:41.14  -0.4   30.1 257 b:1.2+1 1.0 4.6                   CHTO
 PET  qP      20:27:56.83   0.9   31.8  33                                   PET 
 KSM  eP      20:28:09.14  -0.1   33.3 218 b:1.1+1 1.1 4.6                   KSM 
 LSA  eP      20:28:14.49   0.3   33.8 281 b:5.3+0 .65 4.6                   LSA 
 MK31 eP      20:29:13.30  -0.5   40.9 309                                   MK31
 ZAA0 eP      20:29:14.48   0.0   41.0 320                                   ZAA0
 KURK eP      20:29:37.92  -0.2   43.9 314 b:9.3+0 .89 4.5                   KURK
 BILL qP      20:29:42.17   0.1   44.5  18                                   BILL
 TKM2 eP      20:29:50.39   0.0   45.4 303                                   TKM2
 AML  eP      20:30:01.25  -0.7   46.9 302                                   AML 
 EKS2 eP      20:30:01.53   0.6   46.8 303 b:4.1+0 .92 4.4                   EKS2
 FITZ eP      20:30:02.74  -0.6   47.1 186 b:6.9+1 1.6 5.4                   FITZ
 WB2  eP      20:30:16.13  -1.2   48.9 175                                   WB2 
 KKAR eP      20:30:18.53  -0.6   49.2 303 b:3.3+0 .65 4.5                   KKAR
 BRVK eP      20:30:20.41   0.0   49.4 317                                   BRVK
 KBL  eP      20:30:35.96  -1.0   51.5 293 b:3.9+1 1.1 5.3                   KBL 
 PALK qP      20:30:36.01   0.9   51.2 255 b:2.7+1 1.1 5.1                   PALK
 ABKAReP      20:31:09.16   0.1   55.9 312 b:5.7+0 .60 4.8                   ABKA
 ARU  eP      20:31:10.63  -0.3   56.2 321 b:7.2+0 .74 4.8                   ARU 
 RSO  eP      20:31:30.84   0.6   58.9  34                                   RSO 
 PMR  eP      20:31:39.79  -1.4   60.6  33 b:1.9+1 1.1 5.1                   PMR 
 MCK  eP      20:31:39.86  -0.3   60.4  30 b:1.6+1 1.1 5.1                   MCK 
 STKA eP      20:31:47.98  -0.6   61.6 169 b:1.5+0 .82 4.2                   STKA
 INK  eP      20:32:15.92   1.1   65.6  24 b:2.5+1 1.3 5.1                   INK 
 ARE0 eP      20:32:28.07  -1.6   68.0 338                                   ARE0
 GNI  eP      20:32:33.45  -0.8   68.6 305 b:6.4+0 .75 4.7                   GNI 
 KIV  eP      20:32:34.41  -0.4   68.7 309 b:2.1+1 .97 5.1                   KIV 
 DLBC eP      20:32:46.15  -0.1   70.6  33                                   DLBC
 RES  eP      20:32:56.73  -0.2   72.4  11 b:1.5+1 .67 5.1                   RES 
 MALT P       20:33:06.42   0.6   73.8 305 b:6.1+1 1.8 5.3                   MALT
 BR131eP      20:33:22.16   0.4   76.6 308 b:8.1+0 .90 4.7                   BR13
 BUR08eP      20:33:30.50  -0.2   78.2 318                                   BUR0
 SUMG eP      20:33:31.35   0.2   78.3 356 b:9.0+0 .70 4.9                   SUMG
 KWP  eP      20:33:33.60   0.9   78.6 321 b:3.2+1 1.1 5.2                   KWP 
 ETW  eP      20:33:45.66   0.0   81.0  40 b:1.6+1 1.1 4.9                   ETW 
 MORC eP      20:33:47.11  -0.4   81.3 323                                   MORC
 NEW  eP      20:33:51.08  -1.9   82.4  38 b:6.4+0 1.0 4.6                   NEW 
 OD2  eP      20:33:51.21   0.3   82.0  40 b:3.7+0 .72 4.5                   OD2 
 WALA eP      20:33:59.69   0.3   83.6  37 b:2.5+0 2.3 3.9X                  WALA
 BSMT eP      20:34:00.29  -0.6   83.9  38 b:9.4+0 1.2 4.7                   BSMT
 GRFO eP      20:34:04.26  -0.3   84.6 325 b:2.4+1 1.2 5.2                   GRFO
 SWMT eP      20:34:04.45   0.4   84.5  38 b:6.8+0 1.1 4.7                   SWMT
      e       20:34:19.77  -1.8X
 SLMT eP      20:34:06.10  -0.2   84.9  38 b:1.6+1 1.2 5.0                   SLMT
 FFC  eP      20:34:08.38   0.5   85.3  27 b:1.0+1 .88 5.0                   FFC 
 CHMT eP      20:34:08.42   0.4   85.3  38 b:2.4+0 1.3 4.2                   CHMT
 HRY  eP      20:34:11.77  -0.5   86.2  37 b:2.5+0 .48 4.7                   HRY 
 PAHR eP      20:34:11.91   0.4   85.9  46 b:7.9+0 .95 4.9                   PAHR
 CMB  eP      20:34:12.67  -0.2   86.2  48 b:7.2+0 .96 4.9                   CMB 
 EGMT eP      20:34:12.73  -0.7   86.4  36 b:1.9+1 1.1 5.2                   EGMT
 LRM  eP      20:34:13.55  -0.1   86.4  38 b:3.6+2 2.3 6.2X                  LRM 
 WAKR eP      20:34:15.28   0.5   86.6  47                                   WAKR
 DLMT eP      20:34:15.31   0.8   86.6  39 b:7.0+0 1.1 5.1                   DLMT
      e       20:34:29.75  -2.4X
 HLID eP      20:34:15.87   0.8   86.7  41 b:5.7+0 .98 4.8                   HLID
 BOZ  eP      20:34:16.71   0.5   86.9  38 b:5.5+0 1.1 4.7                   BOZ 
 RLMT eP      20:34:23.75   0.1   88.5  38 b:4.4+1 2.1 5.4                   RLMT
      e       20:34:38.67  depth =  51.0X
 FLWY eP      20:34:24.07   0.5   88.4  39 b:3.5+1 1.6 5.4                   FLWY
 IMW  eP      20:34:24.47   0.9   88.4  39 b:6.7+0 1.1 4.8                   IMW 
 BGU  eP      20:34:28.32   1.6   89.1  43 b:2.7+1 2.1 5.2                   BGU 
 DUG  eP      20:34:28.76  -0.7   89.7  43 b:6.3+1 2.3 5.5                   DUG 
 HWUT eP      20:34:29.30   0.6   89.5  41 b:1.2+1 1.1 5.1                   HWUT
      e       20:34:44.62  -1.8X
 SHPR eP      20:34:33.90   0.5   90.5  47 b:4.7+0 1.1 4.7                   SHPR
 MSU  eP      20:34:37.68   1.4   91.1  44 b:4.5+1 2.0 5.5                   MSU 
 RSSD eP      20:34:40.46   0.5   92.0  36 b:8.3+0 1.1 5.1                   RSSD
 PV04 eP      20:34:46.13   0.5   93.2  42                                   PV04
      e       20:35:02.43  -0.9X
 PV01 eP      20:34:47.79   0.4   93.5  42 b:2.6+2 1.1 6.9X                  PV01
      e       20:35:02.89  -2.2X



 Generated 2008 SEP 13 at 21:40 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