QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us10002x4x
USGS us10002x4x
31 Jul 2015, 20:17
67 km WSW of Nikolski, Alaska
A magnitude 5.1 mb earthquake at 37.3 km depth.
Published location
Where is 67 km WSW of Nikolski, 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.
52.669000, -169.750000
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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
us10002x4x
Coordinates
52.669, -169.75
Network
us
Significance
400