QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us200040d5
USGS us200040d5
29 Oct 2015, 02:49
Rat Islands, Aleutian Islands, Alaska
A magnitude 5.3 mww earthquake at 93.9 km depth.
Published location
Where is Rat Islands, Aleutian Islands, 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.
51.814300, 178.525100
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
us200040d5
Coordinates
51.8143, 178.5251
Network
us
Significance
432