QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp00026wr
USGS usp00026wr

31 Aug 1984, 20:46

9 km ENE of Monterrey, Mexico

A magnitude 6.3 mw earthquake at 118.8 km depth.

Depth118.8 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated27 April 2022Latest timestamp stored in this record

Published location

Where is 9 km ENE of Monterrey, 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.

16.080000, -93.286000

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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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Nearby events with a similar magnitude

M 6.3

111 km S of San Mateo del Mar, Mexico

M 6.3

13 km NE of Santa María Chimalapa, Mexico

M 6.3

5 km SW of Salina Cruz, Mexico

M 6.3

4 km WNW of San Pedro Buenavista, Mexico

M 6.3

62 km WSW of Puerto Madero, Mexico

M 6.3

2 km NNE of Cabeza de Toro, Mexico

Catalog fields and provenance
Event ID
usp00026wr
Coordinates
16.08, -93.286
Network
us
Significance
611