QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/ci3299653
USGS ci3299653
19 Mar 1954, 09:54
The 1954 San Jacinto Fault, California Earthquake
A magnitude 6.4 mw earthquake at 6 km depth.
Published location
Where is The 1954 San Jacinto Fault, California Earthquake?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
33.298500, -116.080500
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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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Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
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Catalog fields and provenance
Event ID
ci3299653
Coordinates
33.2985, -116.0805
Network
ci
Significance
630