QQuakeFacts
USGS us70009jgt

18 May 2020, 07:56

251 km W of Ferndale, California

A magnitude 5 mww earthquake at 10 km depth.

Depth10 kmPublished hypocentral depth
Tsunami flagFlaggedUSGS catalog flag, not a current warning
Updated22 December 2025Latest timestamp stored in this record

Published location

Where is 251 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.

40.771400, -127.227100

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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
us70009jgt
Coordinates
40.7714, -127.2271
Network
us
Significance
387