QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usc000faj4
USGS usc000faj4
20 Feb 2013, 08:47
198 km SSE of Atka, Alaska
A magnitude 5.4 mwc earthquake at 25.3 km depth.
Published location
Where is 198 km SSE of Atka, 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.
50.457000, -173.576000
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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
usc000faj4
Coordinates
50.457, -173.576
Network
us
Significance
449