QQuakeFacts
USGS iscgem913761

6 Feb 1916, 21:51

Rat Islands, Aleutian Islands, Alaska

A magnitude 7.1 mw earthquake at 15 km depth.

Depth15 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated28 July 2026Latest timestamp stored in this record

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.

50.785000, 179.032000

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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
iscgem913761
Coordinates
50.785, 179.032
Network
iscgem
Significance
765