QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0002suq
USGS usp0002suq

11 Apr 1986, 18:22

93 km WNW of Dutch Harbor, Alaska

A magnitude 6 mw earthquake at 33 km depth.

Depth33 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated27 April 2022Latest timestamp stored in this record

Published location

Where is 93 km WNW of Dutch Harbor, 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.

54.164000, -167.883000

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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

75 km SE of Nikolski, Alaska

M 6

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M 6

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M 6

163 km N of Nikolski, Alaska

M 6

59 km WSW of Nikolski, Alaska

M 6.01

Fox Islands, Aleutian Islands, Alaska

Catalog fields and provenance
Event ID
usp0002suq
Coordinates
54.164, -167.883
Network
us
Significance
554