QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0000uq0
USGS usp0000uq0
24 May 1978, 07:16
192 km WSW of Adak, Alaska
A magnitude 6.7 ms earthquake at 25 km depth.
Published location
Where is 192 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.
51.232000, -179.213000
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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
usp0000uq0
Coordinates
51.232, -179.213
Network
us
Significance
691