QQuakeFacts
USGS ci3352060

16 Oct 1979, 00:16

The 1979 Imperial Valley Earthquake, California-Baja California

A magnitude 6.4 mw earthquake at 15 km depth.

Depth15 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is The 1979 Imperial Valley Earthquake, California-Baja California?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

32.667333, -115.359167

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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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Catalog fields and provenance
Event ID
ci3352060
Coordinates
32.6673333, -115.3591667
Network
ci
Significance
708