M3.2 earthquake 4km W of Grapevine, CA
A magnitude 3.2 earthquake struck 4km W of Grapevine, CA on Thu, Feb 23, 1939, 2:25 AM GMT-8 (10:25 UTC), 6 km (4 mi) below the surface.
A larger quake followed: M3.8 10km NW of Frazier Park, CA. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.2 (ml), minor
- Local time
- UTC
- 1939-02-23 10:25:35 UTC
- Depth
- 6.0 km (3.7 mi), shallow
- Epicenter
- 34.946° N, 118.978° 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 2.0 km horizontally, 31.6 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- Operator assigned
- Station coverage gap
- 254°, 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: 5 in the 60 days after this one and 6 in the 30 days before it.
After
- 3.810km NW of Frazier Park, CA · 31983 days ago · 6 km deep · 10 km away
- 2.67km W of Grapevine, CA · 31983 days ago · 6 km deep · 3 km away
- 2.715km WSW of Lake Hughes, CA · 31980 days ago · 6 km deep · 51 km away
- 2.311km WNW of Neenach, CA · 31952 days ago · 6 km deep · 28 km away
- 2.52km SSE of Grapevine, CA · 31945 days ago · 6 km deep · 6 km away
Before
- 2.912km NNW of Grapevine, CA · 31995 days ago · 6 km deep · 10 km away
- 3.36km WNW of Grapevine, CA · 31995 days ago · 6 km deep · 3 km away
- 4.69km WSW of Grapevine, CA · 31995 days ago · 6 km deep · 6 km away
- 3.010km WNW of Grapevine, CA · 31995 days ago · 6 km deep · 6 km away
- 4.411km NNW of Grapevine, CA · 31995 days ago · 6 km deep · 10 km away
- 1.913km NE of Sunland, CA · 32003 days ago · 6 km deep · 96 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ci3364906. Read Tue, Sep 29, 2026, 8:03 PM UTC.