QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us700039xa
USGS us700039xa
21 Apr 2019, 07:31
124 km WSW of Adak, Alaska
A magnitude 5 mww earthquake at 53.4 km depth.
Published location
Where is 124 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.
51.462300, -178.308400
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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
us700039xa
Coordinates
51.4623, -178.3084
Network
us
Significance
385