QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/ci3365515
USGS ci3365515
7 Dec 1940, 23:17
126km S of Estacion Coahuila, B.C., MX
A magnitude 6.1 ml earthquake at 6 km depth.
Published location
Where is 126km S of Estacion Coahuila, B.C., MX?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
31.069333, -114.852667
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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
ci3365515
Coordinates
31.0693333, -114.8526667
Network
ci
Significance
563