M2.9 earthquake 5km WSW of Grapevine, CA
A magnitude 2.9 earthquake struck 5km WSW of Grapevine, CA on Mon, May 2, 1966, 8:12 PM GMT-7 (03:12 UTC), 15 km (9 mi) below the surface.
A larger quake followed: M3.0 10km N of Lamont, 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
- 1966-05-03 03:12:00 UTC
- Depth
- 14.7 km (9.1 mi), shallow
- Epicenter
- 34.929° N, 118.986° 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 1.2 km horizontally, 1.7 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- From location
- Station coverage gap
- 136°
- 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: 8 in the 60 days after this one and 4 in the 30 days before it.
After
- 2.43km NW of Sunland, CA · 22053 days ago · 6 km deep · 94 km away
- 3.010km N of Lamont, CA · 22033 days ago · 6 km deep · 47 km away
- 2.42km WSW of Granada Hills, CA · 22031 days ago · 7 km deep · 86 km away
- 2.417km SSE of Carpinteria, CA · 22025 days ago · 17 km deep · 86 km away
- 2.922km NNW of Tehachapi, CA · 22024 days ago · 6 km deep · 60 km away
- 2.825km NNW of Tehachapi, CA · 22018 days ago · 6 km deep · 60 km away
- 2.99km SW of Lamont, CA · 22003 days ago · 6 km deep · 31 km away
- 2.016km SW of Arvin, CA · 22001 days ago · 6 km deep · 21 km away
Before
Earthquakes todayCalifornia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ci3330215. Read Tue, Sep 22, 2026, 8:45 PM UTC.