QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/nc72373456
USGS nc72373456
1 Jan 2015, 12:16
128 km W of Ferndale, California
A magnitude 5.4 mw earthquake at 23.9 km depth.
Published location
Where is 128 km W of Ferndale, 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.
40.442000, -125.774667
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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
nc72373456
Coordinates
40.442, -125.7746667
Network
nc
Significance
454