QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us10004x1w
USGS us10004x1w
12 Mar 2016, 18:06
72 km SSE of Atka, Alaska
A magnitude 6.3 mww earthquake at 19 km depth.
Published location
Where is 72 km SSE 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.
51.564800, -173.942300
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
us10004x1w
Coordinates
51.5648, -173.9423
Network
us
Significance
612