QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0002hky
USGS usp0002hky

11 Aug 1985, 10:59

Komandorskiye Ostrova, Russia region

A magnitude 6.3 mw earthquake at 50.4 km depth.

Depth50.4 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated27 April 2022Latest timestamp stored in this record

Published location

Where is Komandorskiye Ostrova, Russia region?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

54.139000, 168.731000

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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 6.3

Komandorskiye Ostrova, Russia region

M 6.31

76 km WNW of Attu Station, Alaska

M 6.32

236 km NW of Attu Station, Alaska

M 6.32

Komandorskiye Ostrova, Russia region

M 6.33

128 km W of Attu Station, Alaska

M 6.2

63 km W of Attu Station, Alaska

Catalog fields and provenance
Event ID
usp0002hky
Coordinates
54.139, 168.731
Network
us
Significance
611