QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/nc40193932
USGS nc40193932
26 Feb 2007, 12:19
51 km W of Ferndale, California
A magnitude 5.4 mw earthquake at -0.5 km depth.
Published location
Where is 51 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.
40.642833, -124.862833
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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
nc40193932
Coordinates
40.6428333, -124.8628333
Network
nc
Significance
859