M3.3 earthquake 17km NW of Grapevine, CA
A magnitude 3.3 earthquake struck 17km NW of Grapevine, CA on Thu, Sep 7, 1961, 1:50 PM GMT-7 (20:50 UTC), 1 km (1 mi) below the surface.
A larger quake followed: M3.3 18km NW of Tehachapi, CA. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.3 (ml), minor
- Local time
- UTC
- 1961-09-07 20:50:42 UTC
- Depth
- 1.0 km (0.6 mi), shallow
- Epicenter
- 35.047° N, 119.061° 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 1.3 km horizontally, 2.4 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- From location
- Station coverage gap
- 153°
- Stations used
- 8
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 4 in the 30 days before it.
After
- 2.916km SSW of Carpinteria, CA · 23749 days ago · 9 km deep · 99 km away
- 2.65km WSW of Simi Valley, CA · 23730 days ago · 6 km deep · 91 km away
- 3.015km WSW of Tehachapi, CA · 23729 days ago · 6 km deep · 41 km away
- 3.212km S of Arvin, CA · 23723 days ago · 6 km deep · 24 km away
- 3.117km NW of Tehachapi, CA · 23702 days ago · 6 km deep · 46 km away
- 2.917km ENE of Arvin, CA · 23702 days ago · 6 km deep · 45 km away
- 3.019km E of Arvin, CA · 23702 days ago · 6 km deep · 45 km away
- 3.318km NW of Tehachapi, CA · 23702 days ago · 6 km deep · 47 km away
Before
Earthquakes todayCalifornia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ci3344796. Read Tue, Sep 22, 2026, 12:15 PM UTC.