M4.4 earthquake 18km NW of Grapevine, CA
A magnitude 4.4 earthquake struck 18km NW of Grapevine, CA on Sun, May 7, 1939, 6:48 PM GMT-8 (02:48 UTC), 6 km (4 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (ml), light
- Local time
- UTC
- 1939-05-08 02:48:02 UTC
- Depth
- 6.0 km (3.7 mi), shallow
- Epicenter
- 35.063° N, 119.062° 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 2.8 km horizontally, 31.6 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- Operator assigned
- Station coverage gap
- 264°, poorly surrounded by stations
- Stations used
- 5
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 2.628km SSW of Maricopa, CA · 31876 days ago · 6 km deep · 48 km away
- 3.016km WNW of Wofford Heights, CA · 31871 days ago · 6 km deep · 86 km away
Before
Earthquakes todayCalifornia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ci3364995 (also filed as ushis1248). Read Tue, Sep 22, 2026, 10:39 AM UTC.