QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0000yks
USGS usp0000yks

26 Jan 1979, 10:04

15 km N of San Luis de La Loma, Mexico

A magnitude 6.6 ms earthquake at 41 km depth.

Depth41 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is 15 km N of San Luis de La Loma, 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.

17.413000, -100.877000

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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 6.55

10 km SSE of Coacoyulichán, Mexico

M 6.51

4 km ESE of Santa María Jicaltepec, Mexico

M 6.7

14 km N of San Luis de La Loma, Mexico

M 6.7

1 km ENE of Jolotichán, Mexico

M 6.71

6 km SW of Tenexpa, Mexico

M 6.72

11 km SSE of Hacienda de Cabañas, Mexico

Catalog fields and provenance
Event ID
usp0000yks
Coordinates
17.413, -100.877
Network
us
Significance
670