QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem913732
USGS iscgem913732
21 Dec 1917, 20:52
173 km SSE of Akhiok, Alaska
A magnitude 6.2 mw earthquake at 15 km depth.
Published location
Where is 173 km SSE of Akhiok, 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.
55.631000, -152.659000
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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
iscgem913732
Coordinates
55.631, -152.659
Network
iscgem
Significance
584