M2.9 earthquake 10km WSW of Tehachapi, CA
A magnitude 2.9 earthquake struck 10km WSW of Tehachapi, CA on Mon, Oct 28, 1963, 11:11 PM GMT-8 (07:11 UTC), 6 km (4 mi) below the surface.
A larger quake followed: M3.1 9km SSE of Shafter, CA. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.9 (ml), micro
- Local time
- UTC
- 1963-10-29 07:11:23 UTC
- Depth
- 6.0 km (3.7 mi), shallow
- Epicenter
- 35.110° N, 118.553° 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 1.7 km horizontally, 31.6 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- Operator assigned
- Station coverage gap
- 83°
- Stations used
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 1 in the 30 days before it.
After
- 3.19km SSE of Shafter, CA · 22970 days ago · 6 km deep · 71 km away
- 3.27km N of Inyokern, CA · 22969 days ago · 6 km deep · 94 km away
- 2.911km SSW of Castaic, CA · 22961 days ago · 6 km deep · 79 km away
- 2.30km NE of Northridge, CA · 22954 days ago · 0 km deep · 97 km away
- 2.94km SW of Shafter, CA · 22952 days ago · 6 km deep · 79 km away
- 3.82km NNE of Shafter, CA · 22952 days ago · 6 km deep · 79 km away
- 3.28km SSW of Shafter, CA · 22952 days ago · 6 km deep · 78 km away
- 2.925km SW of Lamont, CA · 22930 days ago · 6 km deep · 52 km away
- 2.718km W of Johannesburg, CA · 22924 days ago · 6 km deep · 72 km away
Before
Earthquakes todayCalifornia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ci3331076. Read Tue, Sep 22, 2026, 5:28 PM UTC.