QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000c4m0
USGS usp000c4m0
11 Aug 2003, 02:17
161 km SW of Emiliano Zapata, Mexico
A magnitude 5.7 mwc earthquake at 10 km depth.
Published location
Where is 161 km SW of Emiliano Zapata, 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.
18.348000, -106.036000
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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
usp000c4m0
Coordinates
18.348, -106.036
Network
us
Significance
500