QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usc000tgw6
USGS usc000tgw6
18 Jan 2015, 04:47
260 km W of Adak, Alaska
A magnitude 5.5 mww earthquake at 102 km depth.
Published location
Where is 260 km W 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.
51.923800, 179.578000
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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
usc000tgw6
Coordinates
51.9238, 179.578
Network
us
Significance
465