QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/nc71819391
USGS nc71819391

21 Jul 2012, 02:52

109 km WSW of Ferndale, California

A magnitude 5.1 mw earthquake at 24.6 km depth.

Depth24.6 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated22 December 2025Latest timestamp stored in this record

Published location

Where is 109 km WSW 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.

40.385333, -125.528000

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Map data © OpenStreetMap contributors

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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Nearby events with a similar magnitude

M 5.1

188 km W of Port Orford, Oregon

M 5.1

151 km WSW of Pistol River, Oregon

M 5.1

251 km W of Ferndale, California

M 5.1

180 km W of Ferndale, California

M 5.1

169 km WSW of Pistol River, Oregon

M 5.1

163 km W of Port Orford, Oregon

Catalog fields and provenance
Event ID
nc71819391
Coordinates
40.3853333, -125.528
Network
nc
Significance
431