QuakeFactsEvidence report · prepared 3 September 2026https://quakes99.com/entity/nc73351710
USGS nc73351710
9 Mar 2020, 02:59
69km W of Petrolia, CA
A magnitude 5.8 mw earthquake at 3.2 km depth.
Published location
Where is 69km W of Petrolia, 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.
40.391667, -125.093667
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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
nc73351710
Coordinates
40.3916667, -125.0936667
Network
nc
Significance
1072