QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/ushis873
USGS ushis873
30 May 1931, 12:34
72 km S of Attu Station, Alaska
A magnitude 6 uk earthquake at 0 km depth.
Published location
Where is 72 km S 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.
52.200000, 173.300000
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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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Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
ushis873
Coordinates
52.2, 173.3
Network
ushis
Significance
554