QQuakeFacts
USGS iscgem826944

4 Jan 1968, 00:57

188 km E of Atka, Alaska

A magnitude 6.1 mw earthquake at 27 km depth.

Depth27 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is 188 km E of Atka, 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.

52.251000, -171.448000

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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
iscgem826944
Coordinates
52.251, -171.448
Network
iscgem
Significance
578