QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000b31p
USGS usp000b31p
24 Apr 2002, 08:08
123 km SW of Adak, Alaska
A magnitude 5.6 mwc earthquake at 33 km depth.
Published location
Where is 123 km SW 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.
51.085000, -177.879000
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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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Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
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Catalog fields and provenance
Event ID
usp000b31p
Coordinates
51.085, -177.879
Network
us
Significance
482