QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us20005axu
USGS us20005axu

19 Mar 2016, 01:35

75 km S of Atka, Alaska

A magnitude 6 mww earthquake at 17 km depth.

Depth17 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated31 July 2023Latest timestamp stored in this record

Published location

Where is 75 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.

51.514500, -174.142300

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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

51 km SSE of Atka, Alaska

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99 km SE of Atka, Alaska

M 6

136 km S of Adak, Alaska

M 6

96 km SSW of Atka, Alaska

M 6

68 km SE of Adak, Alaska

M 6

194 km SSW of Adak, Alaska

Catalog fields and provenance
Event ID
us20005axu
Coordinates
51.5145, -174.1423
Network
us
Significance
554