QQuakeFacts
USGS usp000g41s

16 Apr 2008, 06:54

174 km W of Adak, Alaska

A magnitude 6.6 mwc earthquake at 13 km depth.

Depth13 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated2 May 2022Latest timestamp stored in this record

Published location

Where is 174 km W of Adak, Alaska?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

51.878000, -179.165000

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What the numbers mean

Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.

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Catalog fields and provenance
Event ID
usp000g41s
Coordinates
51.878, -179.165
Network
us
Significance
670