QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem903401
USGS iscgem903401
23 Dec 1937, 13:18
3 km W of Huixtepec, Mexico
A magnitude 7.4 mw earthquake at 25 km depth.
Published location
Where is 3 km W of Huixtepec, Mexico?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
16.656000, -98.338000
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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
iscgem903401
Coordinates
16.656, -98.338
Network
iscgem
Significance
842