Phase Data
24 JUL 2007 (205) ot = 21:52:07.95 +/- 0.71 NEAR WEST COAST OF HONSHU, JAPAN lat = 37.487 +/- 3.3 lon = 138.547 +/- 3.5 MAGNITUDE 4.7 (GS) dep = 47.2 +/- 6.4 65 km (40 miles) SW of Niigata, Honshu, Japan (pop 494,000) 100 km (60 miles) NNE of Nagano, Honshu, Japan (pop 358,000) 130 km (80 miles) NNW of Maebashi, Honshu, Japan (pop 284,000) 230 km (140 miles) NNW of TOKYO, Japan nph = 100 of 108 se = 0.71 FE=226 A error ellipse = (291.7, 69.0, 10.4;166.6, 12.5, 4.9; 72.8, 16.7, 4.2) mb = 4.8 ( 48) ML = 0.0 ( 0) mblg = 3.1 ( 1) md = 0.0 ( 0) MS = 4.2 ( 1) sta phase arrival res dist azm amp per mag amp per mag sta KS15 ePn 21:54:09.90 1.8 8.5 273 KS15 INCN ePn 21:54:21.20 -0.5 9.5 274 INCN MDJ qPn 21:54:26.17 -0.2 9.8 319 d:1.6+1 5.3X L:2.5-2 1.4 4.1X MDJ g:1.6-2 1.0 3.1 YSS eP 21:54:27.82 -0.5 10.0 17 d:4.8+0 4.4X L:3.1-2 .45 4.2X YSS b:1.5+1 .45 5.4X BJT eP 21:56:11.06 1.0 17.6 285 BJT HIA eP 21:56:13.88 -0.5 18.0 317 HIA YHNB qP 21:56:30.01 -0.6 19.4 234 YHNB NACB eP 21:56:32.90 0.1 19.7 232 NACB PET qP 21:56:46.65 0.5 20.9 36 PET MA2 eP 21:57:10.82 -2.2 23.5 16 b:3.0+1 1.2 4.7 MA2 GUMO qP 21:57:21.42 -1.0 24.5 165 GUMO ULN eP 21:57:28.94 -0.3 25.2 304 ULN LSA eP 21:59:37.41 -0.4 39.9 273 b:1.6+0 .49 4.1 LSA KURK eP 22:00:08.36 -0.9 43.8 307 b:1.0+1 .80 4.6 KURK IMA2 eP 22:00:37.24 -0.5 47.5 31 IMA2 TKM2 eP 22:00:37.66 0.0 47.4 297 b:9.4+0 1.3 4.6 TKM2 BRVK eP 22:00:46.83 0.0 48.6 312 BRVK ePcP 22:02:12.36 0.7X AML eP 22:00:49.49 -0.6 49.0 297 b:1.1+1 .85 4.9 AML ePcP 22:02:13.93 0.3X KAKA eP 22:01:00.30 0.8 50.3 188 b:1.4+1 .70 5.1 KAKA EGAK eP 22:01:17.39 -0.4 52.8 32 EGAK ARU eP 22:01:30.47 -0.1 54.5 318 ARU INK eP 22:01:34.36 0.2 55.0 27 INK KBL eP 22:01:35.13 -0.5 55.1 290 b:1.5+1 1.2 4.9 KBL FITZ iPc 22:01:46.10 0.0 56.6 195 b:2.3+1 .90 5.2 FITZ WB2 eP 22:01:50.04 -0.6 57.3 185 WB2 WRAB eP 22:01:50.13 -0.4 57.3 185 WRAB CTA eP 22:01:54.00 0.1 57.7 171 b:6.9+0 .90 4.8 CTA CTAO eP 22:01:54.05 0.1 57.7 171 b:9.3+0 .81 4.9 CTAO MBWA eP 22:02:15.91 -0.4 61.0 200 b:1.4+1 .71 5.2 MBWA OBN eP 22:02:51.11 -0.3 66.3 322 b:1.2+1 .87 5.0 OBN FORT eP 22:03:05.90 0.0 68.6 190 b:2.8+1 .60 5.4 FORT JCW eP 22:03:06.70 -0.1 68.8 45 JCW ARMA eP 22:03:07.35 1.1 68.7 168 ARMA STKA iPc 22:03:08.20 -0.5 69.1 177 b:1.0+1 .90 4.8 STKA KIV eP 22:03:08.31 0.6 68.9 310 KIV ETW eP 22:03:13.56 -1.0 70.0 45 ETW SUMG eP 22:03:15.64 -0.2 70.2 359 SUMG OD2 eP 22:03:20.10 -0.6 71.0 45 OD2 NEW eP 22:03:21.89 -1.0 71.4 43 b:3.6+0 .88 4.3 NEW AKBB eP 22:03:28.80 -0.8 72.5 321 AKBB NWAO qP 22:03:31.44 0.0 72.8 199 NWAO BMO eP 22:03:33.09 -1.3 73.3 46 b:8.3+0 1.2 4.5 BMO SUW eP 22:03:33.83 -0.1 73.3 326 SUW PAHR eP 22:03:45.69 0.6 75.1 51 b:1.2+1 1.0 4.8 PAHR HRY eP 22:03:45.94 0.5 75.2 42 HRY LRM eP 22:03:47.12 0.2 75.4 43 LRM CMB eP 22:03:47.71 0.7 75.4 53 b:2.0+1 1.3 4.9 CMB DLMT eP 22:03:48.46 0.5 75.6 44 b:1.4+1 1.0 4.8 DLMT HLID eP 22:03:48.97 0.3 75.7 46 HLID WAKR eP 22:03:50.01 0.9 75.8 52 WAKR BMN eP 22:03:50.14 -0.1 76.0 50 b:5.7+0 1.0 4.5 BMN BOZ eP 22:03:50.24 0.3 76.0 43 BOZ KWP eP 22:03:52.91 0.6 76.4 323 b:3.1+1 1.1 5.2 KWP KOLS eP 22:03:55.80 -0.3 77.1 323 KOLS ELK eP 22:03:56.24 0.3 77.0 49 b:2.0+0 .88 4.2 ELK ANTO eP 22:03:57.46 0.2 77.3 311 b:1.2+1 .95 4.9 ANTO ePcP 22:04:08.12 0.3X CRVS eP 22:03:58.90 0.5 77.5 323 CRVS eSn 22:09:23.60 RRI2 eP 22:03:58.97 -0.4 77.6 45 b:3.5+0 .75 4.5 RRI2 RLMT eP 22:03:59.00 0.2 77.6 42 b:8.3+0 1.0 4.7 RLMT TPH eP 22:03:59.30 0.9 77.4 52 TPH IMW eP 22:04:00.06 1.4 77.5 44 b:1.1+1 1.2 4.8 IMW ISA qP 22:04:00.31 -1.7 78.1 54 b:3.5+0 .95 4.3 ISA TPAW eP 22:04:01.30 1.3 77.7 44 b:3.9+1 1.9 5.1 TPAW REDW eP 22:04:01.33 0.6 77.8 44 b:1.1+1 1.2 4.7 REDW BSEG eP 22:04:04.20 -0.1 78.6 332 BSEG MORC eP 22:04:04.61 -0.5 78.7 326 b:1.4+1 1.4 4.7 MORC TPNV eP 22:04:05.83 0.2 78.7 52 b:4.0+1 1.7 5.1 TPNV DUG eP 22:04:06.61 0.9 78.8 48 DUG BW06 eP 22:04:06.77 -0.1 79.0 44 b:9.9+0 1.3 4.6 BW06 PSZ eP 22:04:07.27 0.8 78.9 323 b:1.3+1 1.3 4.7 PSZ ePcP 22:04:14.79 -0.2X VYHS iP 22:04:07.30 0.4 79.0 324 b:5.7+0 1.5 4.3 VYHS GSC eP 22:04:09.52 0.3 79.4 54 b:1.3+1 1.3 4.7 GSC SHPR eP 22:04:11.38 0.5 79.7 52 SHPR ZST eP 22:04:12.00 -0.4 80.0 325 ZST MODS eP 22:04:12.40 1.1 79.8 325 MODS CLZ eP 22:04:13.60 0.4 80.2 330 b:1.5+1 1.4 4.7 CLZ MSU eP 22:04:15.13 1.3 80.2 49 MSU MOX eP 22:04:15.80 0.4 80.6 329 MOX RWWY eP 22:04:16.53 -1.3 81.0 44 b:1.3+1 1.1 4.8 RWWY RSSD eP 22:04:17.06 -0.7 81.0 40 b:2.5+0 .93 4.1 RSSD SRU eP 22:04:17.45 0.5 80.8 47 SRU CONA iPc 22:04:17.52 0.9 80.8 325 b:1.2+1 1.2 4.7 CONA GEC2 eP 22:04:17.80 -0.4 81.1 327 b:7.0+0 1.3 4.4 GEC2 WET eP 22:04:19.20 0.4 81.2 327 b:1.1+1 1.4 4.6 WET GRA1 eP 22:04:20.60 0.4 81.5 329 b:4.4+1 1.5 5.2 GRA1 LR 22:14:20.60 S:1.0-1 19. 4.2 TNS eP 22:04:24.10 0.1 82.2 330 b:2.6+1 1.8 5.0 TNS PV10 eP 22:04:24.87 0.7 82.2 47 PV10 PV01 eP 22:04:26.73 0.3 82.6 47 PV01 BFO eP 22:04:31.80 -0.2 83.8 329 b:3.8+1 1.5 5.2 BFO SDCO eP 22:04:37.03 0.1 84.6 46 b:4.4+0 1.1 4.5 SDCO ECSD eP 22:04:37.04 -1.0 84.9 37 b:1.5+1 1.5 4.9 ECSD TUC eP 22:04:39.35 0.0 85.2 53 TUC SCHQ eP 22:04:40.25 -0.3 85.5 14 SCHQ ANMO eP 22:04:44.23 0.5 86.0 48 b:1.0+1 1.2 4.9 ANMO GDL2 eP 22:04:59.60 0.7 89.2 49 GDL2 WMOK eP 22:05:05.25 0.1 90.6 44 b:6.5+0 1.4 4.8 WMOK QSPA ePKPdf 22:11:05.73 -0.4 127.2 180 QSPA SDV ePKPdf 22:11:05.95 -0.4 126.4 37 SDV LPAZ ePKPdf 22:11:46.70 -0.1 148.4 55 LPAZ ePKPbc 22:11:50.78 0.4X LVC ePKPdf 22:11:50.31 -1.8 152.1 66 LVC ePKPbc 22:11:58.78 0.0X Generated 2007 JUL 28 at 17:58 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver