QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us20003hq5
USGS us20003hq5

10 Sept 2015, 11:26

104 km SSW of Nikolski, Alaska

A magnitude 6 mww earthquake at 20 km depth.

Depth20 kmPublished hypocentral depth
Tsunami flagFlaggedUSGS catalog flag, not a current warning
Updated27 July 2023Latest timestamp stored in this record

Published location

Where is 104 km SSW of Nikolski, 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.

52.098500, -169.534900

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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

229 km SSW of Nikolski, Alaska

M 6

182 km E of Atka, Alaska

M 6

82 km SSE of Nikolski, Alaska

M 6

80 km SW of Nikolski, Alaska

M 6

194 km WSW of Nikolski, Alaska

M 6

177 km WSW of Nikolski, Alaska

Catalog fields and provenance
Event ID
us20003hq5
Coordinates
52.0985, -169.5349
Network
us
Significance
554