QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us20008uzn
USGS us20008uzn

27 Mar 2017, 11:50

63 km W of Attu Station, Alaska

A magnitude 6.2 mww earthquake at 20 km depth.

Depth20 kmPublished hypocentral depth
Tsunami flagFlaggedUSGS catalog flag, not a current warning
Updated7 August 2023Latest timestamp stored in this record

Published location

Where is 63 km W of Attu Station, 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.

52.758600, 172.261600

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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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Continue exploring

Nearby events with a similar magnitude

M 6.16

136 km W of Attu Station, Alaska

M 6.15

192 km WNW of Attu Station, Alaska

M 6.13

111 km WNW of Attu Station, Alaska

M 6.3

Komandorskiye Ostrova, Russia region

M 6.3

Komandorskiye Ostrova, Russia region

M 6.1

281 km WNW of Attu Station, Alaska

Catalog fields and provenance
Event ID
us20008uzn
Coordinates
52.7586, 172.2616
Network
us
Significance
591