QQuakeFacts
USGS us7000clnv

1 Dec 2020, 16:22

46 km ESE of Nikolski, Alaska

A magnitude 6.4 mww earthquake at 23 km depth.

Depth23 kmPublished hypocentral depth
Tsunami flagFlaggedUSGS catalog flag, not a current warning
Updated22 December 2025Latest timestamp stored in this record

Published location

Where is 46 km ESE 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.

52.755100, -168.240100

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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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Catalog fields and provenance
Event ID
us7000clnv
Coordinates
52.7551, -168.2401
Network
us
Significance
639