QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/ak9915k8az9c
USGS ak9915k8az9c

1 May 1991, 08:18

Central Alaska

A magnitude 6.3 mw earthquake at 115.1 km depth.

Depth115.1 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated28 April 2022Latest timestamp stored in this record

Published location

Where is Central 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.

62.475300, -151.410300

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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 6.28

27 km ENE of Whittier, Alaska

M 6.33

37 km SSE of Lowell Point, Alaska

M 6.25

16 km WNW of Happy Valley, Alaska

M 6.24

43 km ESE of Halibut Cove, Alaska

M 6.36

138 km SE of Halibut Cove, Alaska

M 6.2

27 km NNE of Ouzinkie, Alaska

Catalog fields and provenance
Event ID
ak9915k8az9c
Coordinates
62.4753, -151.4103
Network
ak
Significance
611