QQuakeFacts
USGS us7000hdtn

31 May 2022, 15:41

129 km WSW of Adak, Alaska

A magnitude 5 mww earthquake at 47.8 km depth.

Depth47.8 kmPublished hypocentral depth
Tsunami flagFlaggedUSGS catalog flag, not a current warning
Updated6 August 2022Latest timestamp stored in this record

Published location

Where is 129 km WSW of Adak, 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.

51.384500, -178.326200

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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
us7000hdtn
Coordinates
51.3845, -178.3262
Network
us
Significance
385