16 JUL 2007 (197)
ot = 12:08:06.54 +/- 0.19 NEAR WEST COAST OF HONSHU, JAPAN
lat = 37.492 +/- 4.5
lon = 138.424 +/- 4.3 MAGNITUDE 4.6 (GS)
dep = 48.0 (depth phases)
75 km (45 miles) SW of Niigata, Honshu, Japan (pop 494,000)
95 km (60 miles) NNE of Nagano, Honshu, Japan (pop 358,000)
135 km (85 miles) NNW of Maebashi, Honshu, Japan (pop 284,000)
235 km (145 miles) NNW of TOKYO, Japan
Recorded (4 JMA) in Niigata; (2 JMA) in Fukushima, Gumma, Nagano
and Yamagata; (1 JMA) in Ishikawa, Tochigi and Toyama Prefectures.
nph = 97 of 103 se = 0.58 FE=226 A
error ellipse = (141.4, 0.0, 6.5; 51.4, 0.0, 4.9; 0.0, 0.0, 0.0)
mb = 4.6 ( 48) ML = 4.3 ( 1) mblg = 4.4 ( 1) md = 4.2 ( 1) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
MAJO ePg 12:08:13.88 -9.9X 1.0 190 d:2.2+2 4.2 L:2.1+1 .25 4.3 MAJO
eSg 12:08:26.99 S res = -9.4X g:3.4+0 .70 4.4
KS15 ePn 12:10:06.40 1.0 8.4 273 KS15
YSS ePn 12:10:26.79 -0.4 10.0 17 YSS
IMA2 eP 12:16:36.31 -0.3 47.5 31 IMA2
PPLA eP 12:16:41.85 0.1 48.2 35 PPLA
MCK eP 12:16:51.68 -0.8 49.6 34 b:3.8+0 .74 4.5 MCK
PMR eP 12:16:52.29 -0.9 49.7 37 b:5.4+0 1.0 4.5 PMR
BMRM eP 12:17:10.14 -0.1 51.9 37 BMRM
EGAK eP 12:17:15.92 -0.7 52.8 32 b:4.7+0 .75 4.6 EGAK
INK eP 12:17:32.27 -0.7 55.1 27 b:3.8+2 .72 6.5X INK
FITZ eP 12:17:44.20 -0.2 56.6 195 b:4.8+0 .90 4.5 FITZ
WB2 eP 12:17:48.10 -1.0 57.3 185 WB2
JOF eP 12:18:36.20 -1.2 64.4 331 JOF
NLWA eP 12:19:02.49 0.9 68.1 47 b:7.2+0 .92 4.7 NLWA
FORT eP 12:19:04.20 -0.1 68.6 190 b:1.3+1 .60 5.1 FORT
ARMA eP 12:19:04.62 -0.3 68.7 168 ARMA
CMW P 12:19:04.86 0.4 68.6 45 CMW
JCW P 12:19:06.10 0.3 68.8 45 JCW
STKA eP 12:19:06.80 -0.4 69.1 177 b:3.0+0 .60 4.4 STKA
TDL P 12:19:11.62 0.5 69.7 47 TDL
SUMG eP 12:19:12.98 -1.3 70.2 359 SUMG
ETW eP 12:19:13.25 -0.2 70.0 45 ETW
EDM eP 12:19:14.96 -0.7 70.4 37 EDM
EBG P 12:19:15.35 0.4 70.3 46 EBG
KEBM eP 12:19:15.83 0.9 70.3 51 KEBM
EPH P 12:19:16.43 -0.3 70.6 45 EPH
HOOD eP 12:19:16.77 0.1 70.6 47 HOOD
OD2 P 12:19:19.35 -0.2 71.1 44 OD2
HUMO eP 12:19:21.75 0.9 71.3 50 b:1.4+1 1.6 4.6 HUMO
NEW eP 12:19:21.81 0.0 71.4 43 b:5.9+0 .80 4.6 NEW
YBH eP 12:19:25.31 0.4 71.9 51 b:2.8+0 .86 4.2 YBH
LNOR eP 12:19:26.64 0.3 72.2 46 LNOR
WALA eP 12:19:28.93 -0.4 72.7 41 WALA
WDC eP 12:19:29.38 0.0 72.7 52 b:1.2+1 1.3 4.6 WDC
LTIM P 12:19:31.84 0.5 73.0 51 LTIM
BMO eP 12:19:32.78 -0.5 73.3 46 b:5.8+0 .85 4.5 BMO
MOD eP 12:19:33.12 -0.1 73.3 50 b:2.8+0 .76 4.3 MOD
OHCM eP 12:19:36.84 -0.6 74.1 53 OHCM
FFC eP 12:19:39.32 -0.9 74.6 32 FFC
PAHR eP 12:19:44.03 0.0 75.2 51 b:1.1+1 1.0 4.8 PAHR
HRY eP 12:19:44.27 0.0 75.2 42 HRY
EGMT eP 12:19:45.31 -0.3 75.5 40 b:9.9+0 .80 4.8 EGMT
CMB eP 12:19:45.84 -0.2 75.5 53 b:7.1+0 .70 4.7 CMB
LRM eP 12:19:45.86 0.1 75.5 43 LRM
DLMT eP 12:19:47.28 0.4 75.7 43 b:1.1+1 .68 4.9 DLMT
HLID eP 12:19:47.63 0.1 75.8 46 b:2.2+0 .74 4.2 HLID
WAKR eP 12:19:48.19 0.2 75.8 52 WAKR
BOZ eP 12:19:49.07 0.3 76.0 43 b:2.8+0 .69 4.3 BOZ
KOLS eP 12:19:54.10 -0.2 77.0 323 KOLS
GCMT eP 12:19:54.46 0.2 77.0 42 GCMT
ELK eP 12:19:55.39 0.5 77.1 48 ELK
CRVS eP 12:19:55.80 -0.8 77.4 323 CRVS
STHS eP 12:19:56.30 1.1 77.2 323 b:2.9+0 .60 4.5 STHS
OJC eP 12:19:56.30 0.5 77.3 325 OJC
DCID1eP 12:19:57.72 0.0 77.6 44 DCID
IMW eP 12:19:57.94 0.4 77.5 44 b:5.5+0 .78 4.6 IMW
RLMT eP 12:19:58.20 0.6 77.6 42 b:3.7+0 .64 4.6 RLMT
HVU eP 12:19:59.54 0.4 77.8 46 b:4.2+0 1.0 4.4 HVU
TPAW eP 12:19:59.77 0.9 77.8 44 b:2.7+0 .70 4.4 TPAW
REDW eP 12:20:00.12 0.5 77.9 44 b:8.3+0 1.1 4.7 REDW
LOHW eP 12:20:00.25 0.8 77.9 44 b:2.3+0 .81 4.2 LOHW
LAO eP 12:20:00.69 0.0 78.2 39 b:1.1+1 1.0 4.8 LAO
BGU eP 12:20:01.46 0.1 78.2 47 BGU
TPNV eP 12:20:03.85 -0.7 78.8 52 b:7.5+0 .85 4.7 TPNV
DPC eP 12:20:04.90 0.9 78.8 326 DPC
DUG eP 12:20:05.00 0.4 78.8 48 b:1.1+1 1.2 4.7 DUG
BW06 eP 12:20:05.46 -0.3 79.0 44 BW06
CLL iPc 12:20:07.50 -0.3 79.5 329 b:6.0+0 .70 4.6 CLL
epP 12:20:21.00 depth = 46.2
NLU eP 12:20:07.86 -0.1 79.4 47 NLU
ePcP 12:20:16.24 0.3X
GSC eP 12:20:08.00 -0.1 79.5 54 b:7.1+0 1.1 4.5 GSC
JLU eP 12:20:08.80 1.1 79.4 47 JLU
DAU eP 12:20:09.86 0.8 79.6 47 DAU
PRU eP 12:20:10.20 0.5 79.8 327 PRU
ARUT eP 12:20:10.88 -0.2 80.0 50 ARUT
ULM eP 12:20:11.94 -0.8 80.4 32 b:1.7+0 .75 4.1 ULM
epP 12:20:25.53 depth = 46.5
MSU eP 12:20:12.84 0.1 80.3 49 MSU
PFO eP 12:20:14.89 -0.2 80.7 55 b:6.0+0 .90 4.5 PFO
RSSD eP 12:20:15.42 -1.2 81.0 40 b:2.5+0 .61 4.3 RSSD
epP 12:20:30.13 depth = 51.2
KHC eP 12:20:15.60 0.2 80.9 327 KHC
SRU eP 12:20:16.18 0.4 80.9 47 b:5.5+0 .80 4.5 SRU
RWWY eP 12:20:16.71 0.0 81.0 44 b:1.0+1 .85 4.8 RWWY
GLA eP 12:20:22.82 0.4 82.2 54 b:7.8+0 .70 4.8 GLA
PV10 eP 12:20:23.96 0.9 82.2 47 PV10
PV01 eP 12:20:25.77 0.5 82.7 47 PV01
WUAZ eP 12:20:26.38 0.8 82.7 51 WUAZ
SMCO eP 12:20:26.64 0.1 82.9 45 b:6.8+0 .95 4.7 SMCO
ISCO eP 12:20:28.27 0.1 83.2 44 b:1.6+0 .70 4.2 ISCO
MVCO eP 12:20:28.97 0.2 83.3 48 b:6.7+0 .95 4.7 MVCO
EYMN eP 12:20:31.09 -0.6 84.0 31 EYMN
SDCO eP 12:20:35.84 0.1 84.7 46 b:5.5+0 1.0 4.6 SDCO
ECSD eP 12:20:36.16 -0.6 85.0 37 b:3.1+0 .75 4.5 ECSD
TUC eP 12:20:38.16 0.0 85.2 53 b:1.8+0 .73 4.3 TUC
COWI eP 12:20:42.70 -1.3 86.5 31 b:6.5+0 .95 4.8 COWI
ANMO eP 12:20:43.30 0.7 86.1 48 b:5.2+0 1.0 4.7 ANMO
BNM eP 12:20:44.90 0.0 86.5 49 BNM
WMOK eP 12:21:03.35 -0.7 90.6 44 b:2.8+0 .80 4.7 WMOK
CCM eP 12:21:09.63 -0.5 92.0 37 b:8.4+0 .95 5.1 CCM
MIAR eP 12:21:17.21 -0.3 93.6 41 b:5.7+0 .87 5.0 MIAR
Generated 2007 JUL 26 at 12:50 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
