M2.9 earthquake 6km SE of Biola, CA
A magnitude 2.9 earthquake struck 6km SE of Biola, CA on Wed, Feb 21, 1973, 2:24 AM PST (10:24 UTC), 6 km (4 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.9 (Mh), micro
- Magnitude from
- Southern California Seismic Network
- Local time
- UTC
- 1973-02-21 10:24:50 UTC
- Depth
- 6.0 km (3.7 mi), shallow
- Epicenter
- 36.755° N, 119.977° W
- Region
- California
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 1.5 km horizontally, 31.6 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- Operator assigned
- Station coverage gap
- 256°, poorly surrounded by stations
- Stations used
- 3
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ci3320340. Read Fri, Oct 2, 2026, 3:28 PM UTC.