QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000ja0a
USGS usp000ja0a
28 Oct 2011, 02:35
180 km E of Atka, Alaska
A magnitude 5.3 mwb earthquake at 35 km depth.
Published location
Where is 180 km E 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.
52.062000, -171.573000
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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
usp000ja0a
Coordinates
52.062, -171.573
Network
us
Significance
432