QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/ci14517500
USGS ci14517500
1 Oct 2009, 11:01
18km NE of Olancha, CA
A magnitude 5 mw earthquake at 4 km depth.
Published location
Where is 18km NE of Olancha, 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.
36.387833, -117.858667
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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
ci14517500
Coordinates
36.3878333, -117.8586667
Network
ci
Significance
552