QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usc000fc8c
USGS usc000fc8c
23 Feb 2013, 17:04
111 km WSW of Adak, Alaska
A magnitude 5.1 mb earthquake at 62.5 km depth.
Published location
Where is 111 km WSW 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.
51.485000, -178.116000
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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
usc000fc8c
Coordinates
51.485, -178.116
Network
us
Significance
400