QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem854871
USGS iscgem854871

23 Aug 1965, 20:46

4 km NW of Santa María Zapotitlán, Mexico

A magnitude 7.4 mw earthquake at 14.5 km depth.

Depth14.5 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is 4 km NW of Santa María Zapotitlán, 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.

16.157000, -95.876000

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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 7.4

Near the coast of Oaxaca, Mexico

M 7.4

9 km SE of Santa María Xadani, Mexico

M 7.44

8 km ENE of Santiago Xanica, Mexico

M 7.5

15 km W of San Baltazar Loxicha, Mexico

M 7.3

34 km SW of Puerto Madero, Mexico

M 7.51

6 km WSW of San Miguel Panixtlahuaca, Mexico

Catalog fields and provenance
Event ID
iscgem854871
Coordinates
16.157, -95.876
Network
iscgem
Significance
842