QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us6000c3t7
USGS us6000c3t7
1 Oct 2020, 11:25
76 km SW of Atka, Alaska
A magnitude 5.3 mww earthquake at 40.2 km depth.
Published location
Where is 76 km SW 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.
51.667300, -174.916600
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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
us6000c3t7
Coordinates
51.6673, -174.9166
Network
us
Significance
433