Magnitude 6.6 - NEAR THE WEST COAST OF HONSHU, JAPAN

2004 October 23 08:56:00 UTC

Magnitude	6.6
Date-Time	Saturday, October 23, 2004 at 08:56:00 (UTC) = Coordinated Universal Time Saturday, October 23, 2004 at 5:56:00 PM = local time at epicenter Time of Earthquake in other Time Zones
Location	37.226°N, 138.779°E
Depth	16 km (9.9 miles) set by location program
Region	NEAR THE WEST COAST OF HONSHU, JAPAN
Distances	80 km (50 miles) SSW of Niigata, Honshu, Japan 85 km (50 miles) NE of Nagano, Honshu, Japan 95 km (60 miles) NNW of Maebashi, Honshu, Japan 195 km (120 miles) NNW of TOKYO, Japan
Location Uncertainty	horizontal +/- 3.6 km; depth fixed by location program
Parameters	Nst=724, Nph=724, Dmin=91.1 km, Rmss=1.07 sec, Gp= 37°, M-type=teleseismic moment magnitude (Mw)
Source	USGS NEIC (WDCS-D)
Event ID	uspyal

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