Magnitude	4.2
	Date-Time	Sunday, October 03, 2004 at 10:54:20 (UTC) - Coordinated Universal Time Sunday, October 03, 2004 at 01:54:20 AM local time at epicenter Time of Earthquake in other Time Zones
	Location	52.38N 172.88E
	Depth	27 kilometers
	Region	NEAR ISLANDS, ALEUTIAN ISLANDS, ALASKA
	Reference	60 km (40 miles) SSW of Attu, Alaska 90 km (55 miles) WSW of Shemya Island, Alaska 2445 km (1510 miles) W of Anchorage, Alaska 3315 km (2060 miles) WNW of JUNEAU, Alaska
	Location Quality	Error estimate: horizontal +/- 23.9 km; depth +/- 13.0 km
	Location Quality Parameters	Nst=22, Nph=22, Dmin=57.8 km, Rmss=0.58 sec, Erho=23.9 km, Erzz=13.0 km, Gp=213.1 degrees
	Source	USGS NEIC (WDCS-D)

Location Map Did You Feel It? Report shaking and damage at your location. You can also view a map displaying accumulated data from your report and others. Historical Seismicity Theoretical P-Wave Travel Times Historical Moment Tensor Solutions Seismic Hazard Map USGS National Seismic Hazard Mapping Project Current information about the rate at which earthquakes occur in different areas, and on how far strong shaking extends from the earthquake source. Earthquake Information for ALASKA Alaska Earthquake Information Center Earthquakes: Frequently Asked Questions

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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->