QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem898323
USGS iscgem898323
1 Apr 1946, 18:57
146 km ESE of Akutan, Alaska
A magnitude 6.6 mw earthquake at 25 km depth.
Published location
Where is 146 km ESE of Akutan, 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.
53.540000, -163.784000
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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
iscgem898323
Coordinates
53.54, -163.784
Network
iscgem
Significance
666