QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us6000e1qs
USGS us6000e1qs
15 Apr 2021, 09:33
134 km NW of Attu Station, Alaska
A magnitude 5.3 mww earthquake at 11.4 km depth.
Published location
Where is 134 km NW of Attu Station, 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.
53.576700, 171.579900
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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
us6000e1qs
Coordinates
53.5767, 171.5799
Network
us
Significance
432