QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/nc32321
USGS nc32321
23 Nov 1984, 18:08
4 km NNW of Round Valley, California
A magnitude 6.1 ml earthquake at 8.1 km depth.
Published location
Where is 4 km NNW of Round Valley, 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.
37.459667, -118.607167
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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
nc32321
Coordinates
37.4596667, -118.6071667
Network
nc
Significance
572