QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0002u3x
USGS usp0002u3x
17 May 1986, 17:20
25 km NW of Atka, Alaska
A magnitude 6.5 mw earthquake at 26.2 km depth.
Published location
Where is 25 km NW 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.
52.327000, -174.504000
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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
usp0002u3x
Coordinates
52.327, -174.504
Network
us
Significance
650