QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem859264
USGS iscgem859264
4 Feb 1965, 08:40
265 km WSW of Adak, Alaska
A magnitude 7.4 mw earthquake at 9 km depth.
Published location
Where is 265 km WSW of Adak, 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.
51.436000, 179.592000
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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
iscgem859264
Coordinates
51.436, 179.592
Network
iscgem
Significance
840