QQuakeFacts
USGS us7000ppga

2 Apr 2025, 17:26

46 km NNW of Attu Station, Alaska

A magnitude 5.5 mww earthquake at 14 km depth.

Depth14 kmPublished hypocentral depth
Tsunami flagFlaggedUSGS catalog flag, not a current warning
Updated9 June 2025Latest timestamp stored in this record

Published location

Where is 46 km NNW of Attu Station, 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.

53.240700, 172.961000

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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
us7000ppga
Coordinates
53.2407, 172.961
Network
us
Significance
465