QQuakeFacts
USGS ak018aapx4ef

12 Aug 2018, 17:02

81 km SW of Kaktovik, Alaska

A magnitude 5.3 mw earthquake at 18.4 km depth.

Depth18.4 kmPublished hypocentral depth
Tsunami flagFlaggedUSGS catalog flag, not a current warning
Updated16 August 2023Latest timestamp stored in this record

Published location

Where is 81 km SW of Kaktovik, 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.

69.566900, -144.958300

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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
ak018aapx4ef
Coordinates
69.5669, -144.9583
Network
ak
Significance
432