QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem913674
USGS iscgem913674
19 Oct 1917, 16:37
111 km S of San Mateo del Mar, Mexico
A magnitude 6.3 mw earthquake at 15 km depth.
Published location
Where is 111 km S of San Mateo del Mar, 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.
15.212000, -94.833000
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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
iscgem913674
Coordinates
15.212, -94.833
Network
iscgem
Significance
611