M3.0 earthquake 10km WNW of Grapevine, CA
A magnitude 3.0 earthquake struck 10km WNW of Grapevine, CA on Thu, Feb 23, 1939, 12:58 AM GMT-8 (08:58 UTC), 6 km (4 mi) below the surface.
A larger quake followed: M4.6 9km WSW of Grapevine, CA. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.0 (ml), micro
- Local time
- UTC
- 1939-02-23 08:58:01 UTC
- Depth
- 6.0 km (3.7 mi), shallow
- Epicenter
- 34.985° N, 119.031° 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 3.6 km horizontally, 31.6 km in depth
- Magnitude uncertainty
- ±0.03
- Depth from
- Operator assigned
- Station coverage gap
- 258°, 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: 9 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.69km WSW of Grapevine, CA · 31988 days ago · 6 km deep · 9 km away
- 3.36km WNW of Grapevine, CA · 31988 days ago · 6 km deep · 4 km away
- 2.912km NNW of Grapevine, CA · 31988 days ago · 6 km deep · 6 km away
- 3.24km W of Grapevine, CA · 31988 days ago · 6 km deep · 6 km away
- 3.810km NW of Frazier Park, CA · 31976 days ago · 6 km deep · 12 km away
- 2.67km W of Grapevine, CA · 31975 days ago · 6 km deep · 5 km away
- 2.715km WSW of Lake Hughes, CA · 31972 days ago · 6 km deep · 57 km away
- 2.311km WNW of Neenach, CA · 31945 days ago · 6 km deep · 35 km away
- 2.52km SSE of Grapevine, CA · 31937 days ago · 6 km deep · 12 km away
Before
Earthquakes todayCalifornia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ci3364902. Read Tue, Sep 22, 2026, 8:01 AM UTC.