QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us10004x0f
USGS us10004x0f
12 Mar 2016, 13:23
84 km S of Atka, Alaska
A magnitude 5.6 mww earthquake at 12.7 km depth.
Published location
Where is 84 km S 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.
51.449700, -173.972500
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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
us10004x0f
Coordinates
51.4497, -173.9725
Network
us
Significance
482