QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usb000psjy
USGS usb000psjy
21 Apr 2014, 15:02
45 km E of Adak, Alaska
A magnitude 5.4 mb earthquake at 54.2 km depth.
Published location
Where is 45 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.
51.844000, -175.978200
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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
usb000psjy
Coordinates
51.844, -175.9782
Network
us
Significance
449