QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem17290357
USGS iscgem17290357
17 May 1961, 20:29
83 km SSE of Attu Station, Alaska
A magnitude 6.1 mw earthquake at 30 km depth.
Published location
Where is 83 km SSE 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.
52.206000, 173.833000
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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
iscgem17290357
Coordinates
52.206, 173.833
Network
iscgem
Significance
565