QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem886499
USGS iscgem886499
2 May 1957, 12:38
52 km S of Nikolski, Alaska
A magnitude 6.3 mw earthquake at 26 km depth.
Published location
Where is 52 km S of Nikolski, 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.
52.474000, -168.728000
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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
iscgem886499
Coordinates
52.474, -168.728
Network
iscgem
Significance
611