QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us20003glc
USGS us20003glc

5 Sept 2015, 08:00

92 km S of Atka, Alaska

A magnitude 5.5 mww earthquake at 20 km depth.

Depth20 kmPublished hypocentral depth
Tsunami flagFlaggedUSGS catalog flag, not a current warning
Updated27 July 2023Latest timestamp stored in this record

Published location

Where is 92 km S 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.

51.371000, -174.338200

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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 5.5

33 km E of Atka, Alaska

M 5.5

107 km ESE of Adak, Alaska

M 5.5

71 km S of Adak, Alaska

M 5.5

67 km SSE of Adak, Alaska

M 5.5

109 km SW of Atka, Alaska

M 5.5

109 km ESE of Adak, Alaska

Catalog fields and provenance
Event ID
us20003glc
Coordinates
51.371, -174.3382
Network
us
Significance
465