QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/nc73827571
USGS nc73827571
1 Jan 2023, 18:35
15km SE of Rio Dell, CA
A magnitude 5.4 mw earthquake at 30.6 km depth.
Published location
Where is 15km SE of Rio Dell, CA?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
40.409000, -123.971000
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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
nc73827571
Coordinates
40.409, -123.971
Network
nc
Significance
1190