QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us10004amq
USGS us10004amq
31 Dec 2015, 22:22
75 km SE of Atka, Alaska
A magnitude 5 mb earthquake at 39.9 km depth.
Published location
Where is 75 km SE of Atka, 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.
51.678300, -173.489000
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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
us10004amq
Coordinates
51.6783, -173.489
Network
us
Significance
385