QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem868825
USGS iscgem868825
16 Apr 1964, 20:26
95 km S of Old Harbor, Alaska
A magnitude 6.4 mw earthquake at 22.5 km depth.
Published location
Where is 95 km S of Old Harbor, 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.
56.363000, -153.000000
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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
iscgem868825
Coordinates
56.363, -153
Network
iscgem
Significance
622