QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem913517
USGS iscgem913517
31 May 1917, 09:47
54 km SE of Sand Point, Alaska
A magnitude 7.4 mw earthquake at 35 km depth.
Published location
Where is 54 km SE of Sand Point, 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.
54.995000, -159.883000
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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
iscgem913517
Coordinates
54.995, -159.883
Network
iscgem
Significance
842