QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us2000czsn
USGS us2000czsn

9 Feb 2018, 19:55

Rat Islands, Aleutian Islands, Alaska

A magnitude 5.1 mww earthquake at 29.3 km depth.

Depth29.3 kmPublished hypocentral depth
Tsunami flagFlaggedUSGS catalog flag, not a current warning
Updated11 August 2023Latest timestamp stored in this record

Published location

Where is Rat Islands, Aleutian Islands, 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.

51.566200, 177.343000

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Map data © OpenStreetMap contributors

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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Nearby events with a similar magnitude

M 5.1

Rat Islands, Aleutian Islands, Alaska

M 5.1

Rat Islands, Aleutian Islands, Alaska

M 5.1

81 km S of Attu Station, Alaska

M 5.1

290 km SE of Attu Station, Alaska

M 5.1

74 km SSE of Attu Station, Alaska

M 5.1

87 km SSE of Attu Station, Alaska

Catalog fields and provenance
Event ID
us2000czsn
Coordinates
51.5662, 177.343
Network
us
Significance
400