QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem774945
USGS iscgem774945

1 Mar 1972, 09:28

105 km W of Ferndale, California

A magnitude 6 mw earthquake at 11.1 km depth.

Depth11.1 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is 105 km W 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.

40.528000, -125.502000

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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 6.02

53 km SW of Ferndale, California

M 6.01

31 km NW of Shelter Cove, California

M 6

Near Rio Dell, California

M 6

Offshore Humboldt County, California

M 6

153 km WNW of Indianola, California

M 6

72 km WSW of Crescent City, California

Catalog fields and provenance
Event ID
iscgem774945
Coordinates
40.528, -125.502
Network
iscgem
Significance
558