QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem911465
USGS iscgem911465
22 Jul 1923, 15:18
66 km S of Attu Station, Alaska
A magnitude 6.5 mw earthquake at 25 km depth.
Published location
Where is 66 km S 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.
52.251000, 173.114000
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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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Catalog fields and provenance
Event ID
iscgem911465
Coordinates
52.251, 173.114
Network
iscgem
Significance
648