QQuakeFacts
USGS nc75103356

15 Dec 2024, 07:21

77 km WNW of Petrolia, CA

A magnitude 5.3 mw earthquake at 10 km depth.

Depth10 kmPublished hypocentral depth
Tsunami flagFlaggedUSGS catalog flag, not a current warning
Updated18 February 2025Latest timestamp stored in this record

Published location

Where is 77 km WNW of Petrolia, 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.

40.414167, -125.183667

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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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Catalog fields and provenance
Event ID
nc75103356
Coordinates
40.4141666666667, -125.183666666667
Network
nc
Significance
780