QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000hrpy
USGS usp000hrpy
23 Dec 2010, 14:00
139 km WNW of Attu Station, Alaska
A magnitude 6.4 mwc earthquake at 18 km depth.
Published location
Where is 139 km WNW 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.
53.127000, 171.161000
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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
usp000hrpy
Coordinates
53.127, 171.161
Network
us
Significance
630