QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem898332
USGS iscgem898332

3 Apr 1946, 08:58

155 km S of False Pass, Alaska

A magnitude 6 mw earthquake at 25 km depth.

Depth25 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated26 April 2022Latest timestamp stored in this record

Published location

Where is 155 km S of False Pass, 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.

53.456000, -163.457000

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Map data © OpenStreetMap contributors

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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Nearby events with a similar magnitude

M 6.04

195 km S of False Pass, Alaska

M 6.04

57 km SSE of Akutan, Alaska

M 6.04

129 km S of False Pass, Alaska

M 6.06

136 km ESE of Akutan, Alaska

M 6.07

56 km SSW of Unalaska, Alaska

M 6

106 km ESE of Akutan, Alaska

Catalog fields and provenance
Event ID
iscgem898332
Coordinates
53.456, -163.457
Network
iscgem
Significance
561