QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem887596
USGS iscgem887596
26 Nov 1957, 11:35
76 km S of Adak, Alaska
A magnitude 6.1 mw earthquake at 25 km depth.
Published location
Where is 76 km S of Adak, 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.
51.198000, -176.444000
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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
iscgem887596
Coordinates
51.198, -176.444
Network
iscgem
Significance
574