California earthquakes

M3.3 earthquake 1km ESE of Grapevine, CA

A magnitude 3.3 earthquake struck 1km ESE of Grapevine, CA on Sun, Aug 2, 1964, 6:01 PM GMT-7 (01:01 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.0 23km SW of Bodfish, CA. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
3.3 (ML, local (Richter)), minor
Magnitude from
Southern California Seismic Network
Local time
UTC
1964-08-03 01:01:56 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
34.940° N, 118.923° W
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 0.9 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.06
Depth from
Operator assigned
Station coverage gap
100°
Stations used
7

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 2.94km SE of Bodfish, CA · 22690 days ago · 0 km deep · 81 km away
  2. 2.614km N of Tehachapi, CA · 22685 days ago · 6 km deep · 55 km away
  3. 3.220km ENE of Arvin, CA · 22685 days ago · 6 km deep · 46 km away
  4. 2.618km NW of Tehachapi, CA · 22685 days ago · 6 km deep · 43 km away
  5. 3.81km S of San Fernando, CA · 22678 days ago · 14 km deep · 86 km away
  6. 3.820km SE of Bodfish, CA · 22677 days ago · 2 km deep · 78 km away
  7. 3.017km SSE of Bodfish, CA · 22677 days ago · 5 km deep · 71 km away
  8. 3.118km SE of Bodfish, CA · 22664 days ago · 6 km deep · 79 km away
  9. 3.312km N of Grapevine, CA · 22661 days ago · 0 km deep · 13 km away
  10. 4.023km SW of Bodfish, CA · 22647 days ago · 1 km deep · 60 km away

Before

  1. 2.817km SSW of Pine Mountain Club, CA · 22727 days ago · 6 km deep · 38 km away
  2. 2.14km NW of Granada Hills, CA · 22731 days ago · 5 km deep · 80 km away
  3. 3.08km SE of Santa Clarita, CA · 22731 days ago · 1 km deep · 77 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3330882. Read Fri, Oct 2, 2026, 10:48 PM UTC.