QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem884477
USGS iscgem884477
30 May 1958, 19:04
63 km S of Nikolski, Alaska
A magnitude 6.1 mw earthquake at 35 km depth.
Published location
Where is 63 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.
52.372000, -168.715000
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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
iscgem884477
Coordinates
52.372, -168.715
Network
iscgem
Significance
574