M2.9 earthquake 24km SW of Lompoc, CA
A magnitude 2.9 earthquake struck 24km SW of Lompoc, CA on Tue, Sep 4, 1973, 6:11 AM PDT (13:11 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 (ML, local (Richter)), micro
- Magnitude from
- Southern California Seismic Network
- Local time
- UTC
- 1973-09-04 13:11:04 UTC
- Depth
- 6.0 km (3.7 mi), shallow
- Epicenter
- 34.490° N, 120.644° 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 4.8 km horizontally, 31.6 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- Operator assigned
- Station coverage gap
- 320°, poorly surrounded by stations
- Stations used
- 4
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 2.813km WSW of San Miguel Is., CA · 19371 days ago · 6 km deep · 56 km away
- 2.515km SSW of Santa Barbara, CA · 19346 days ago · 5 km deep · 85 km away
Before
Earthquakes todayCalifornia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ci3319299. Read Fri, Oct 2, 2026, 9:04 PM UTC.