QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem913151
USGS iscgem913151

23 May 1918, 12:57

41 km SSW of Heroica Guaymas, Mexico

A magnitude 7 mw earthquake at 10 km depth.

Depth10 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated9 May 2022Latest timestamp stored in this record

Published location

Where is 41 km SSW of Heroica Guaymas, 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.

27.580000, -111.087000

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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 6.84

52 km SW of Bahía de Kino, Mexico

M 6.6

75 km SSW of Bahía de Kino, Mexico

M 6.38

45 km NNE of Santa Rosalía, Mexico

M 6.1

82 km SSW of Bahía de Kino, Mexico

M 6

71 km SSW of Bahía de Kino, Mexico

M 6

64 km SSW of Bahía de Kino, Mexico

Catalog fields and provenance
Event ID
iscgem913151
Coordinates
27.58, -111.087
Network
iscgem
Significance
756