Magnitude	4.2
	Date-Time	Saturday, November 13, 2004 at 02:55:03 (UTC) - Coordinated Universal Time Saturday, November 13, 2004 at 12:55:03 PM local time at epicenter Time of Earthquake in other Time Zones
	Location	27.81N 139.91E
	Depth	348.1 kilometers
	Region	BONIN ISLANDS, JAPAN REGION
	Reference	240 km (150 miles) WNW of Chichi-shima, Bonin Islands, Japan 365 km (225 miles) NNW of Iwo-jima, Volcano Islands, Japan 870 km (540 miles) S of TOKYO, Japan
	Location Quality	Error estimate: horizontal +/- 26.9 km; depth +/- 26.0 km
	Location Quality Parameters	Nst=13, Nph=13, Dmin=981.2 km, Rmss=0.42 sec, Erho=26.9 km, Erzz=26.0 km, Gp=135.6 degrees
	Source	USGS NEIC (WDCS-D)

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NB: The official magnitude for this earthquake is indicated at the top of this page. This was the best available estimate of the earthquake's size, at the time that this page was created. Other magnitudes associated with web pages linked from here are those determined at various times following the earthquake with different types of seismic data. Although, given the data used, they are legitimate estimates of magnitude they are not considered the official magnitude.

The region name is an automatically generated name from the Flinn-Engdahl (F-E) seismic and geographical regionalization scheme. The boundaries of these regions are defined at one-degree intervals and therefore differ from irregular political boundaries. More->