M 5.2 - 28 km W of Ferndale, California
- 1973-12-21 19:12:43 (UTC)
- 40.625°N 124.597°W
- 30.0 km depth
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IVmmi 
Estimated Intensity Map Origin - Review Status
- REVIEWED
- Magnitude
- 5.2 mb
- Depth
- 30.0 km
- Time
- 1973-12-21 19:12:43 UTC
View Nearby Seismicity - Time Range
± Three Weeks - Search Radius
250.0 km - Magnitude Range
≥ 2.0
Contributors US
USGS National Earthquake Information Center, PDE