QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000cb1n
USGS usp000cb1n
23 Oct 2003, 01:25
25 km WSW of Kosh-Agach, Russia
A magnitude 5.1 mwc earthquake at 10 km depth.
Published location
Where is 25 km WSW of Kosh-Agach, Russia?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
49.931000, 88.338000
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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
usp000cb1n
Coordinates
49.931, 88.338
Network
us
Significance
400