QQuakeFacts
USGS us1000hyge

30 Nov 2018, 18:00

6 km S of Big Lake, Alaska

A magnitude 5.2 mww earthquake at 40.2 km depth.

Depth40.2 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated30 December 2025Latest timestamp stored in this record

Published location

Where is 6 km S of Big Lake, 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.

61.459000, -149.954100

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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
us1000hyge
Coordinates
61.459, -149.9541
Network
us
Significance
480