QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000hf99
USGS usp000hf99
14 Jul 2010, 12:01
36 km E of Adak, Alaska
A magnitude 5.6 mwc earthquake at 50.6 km depth.
Published location
Where is 36 km E 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.
51.811000, -176.113000
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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
usp000hf99
Coordinates
51.811, -176.113
Network
us
Significance
482