QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us2000d2yz
USGS us2000d2yz
16 Feb 2018, 00:00
22 km SSW of Adak, Alaska
A magnitude 5.2 mww earthquake at 50.8 km depth.
Published location
Where is 22 km SSW 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.
51.689900, -176.778000
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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
us2000d2yz
Coordinates
51.6899, -176.778
Network
us
Significance
416