QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0004k1t
USGS usp0004k1t

1 Jan 1991, 00:06

172 km SSW of Emiliano Zapata, Mexico

A magnitude 6.3 mw earthquake at 35 km depth.

Depth35 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated28 April 2022Latest timestamp stored in this record

Published location

Where is 172 km SSW 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.

18.068000, -105.847000

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Map data © OpenStreetMap contributors

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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Continue exploring

Nearby events with a similar magnitude

M 6.3

270 km SW of La Cruz de Loreto, Mexico

M 6.3

33 km SW of El Colomo, Mexico

M 6.3

106 km SSW of Barra de Navidad, Mexico

M 6.31

10 km ESE of Mascota, Mexico

M 6.28

73 km SW of Barra de Navidad, Mexico

M 6.35

199 km SW of La Cruz de Loreto, Mexico

Catalog fields and provenance
Event ID
usp0004k1t
Coordinates
18.068, -105.847
Network
us
Significance
611