QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000hm7n
USGS usp000hm7n
26 Sept 2010, 19:27
256 km WNW of Adak, Alaska
A magnitude 5.8 mwb earthquake at 225.8 km depth.
Published location
Where is 256 km WNW 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.
52.438000, 179.732000
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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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Catalog fields and provenance
Event ID
usp000hm7n
Coordinates
52.438, 179.732
Network
us
Significance
518