QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us70008ei4
USGS us70008ei4
23 Mar 2020, 12:25
71 km WNW of Adak, Alaska
A magnitude 5 mww earthquake at 101.2 km depth.
Published location
Where is 71 km WNW 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.
52.091300, -177.618500
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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
us70008ei4
Coordinates
52.0913, -177.6185
Network
us
Significance
385