QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usb000gdcd
USGS usb000gdcd
22 Apr 2013, 05:36
289 km WSW of Adak, Alaska
A magnitude 5.5 mwb earthquake at 18 km depth.
Published location
Where is 289 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.
51.098000, 179.392000
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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
usb000gdcd
Coordinates
51.098, 179.392
Network
us
Significance
465