California earthquakes

M3.8 earthquake 15km SE of Anza, CA

A magnitude 3.8 earthquake struck 15km SE of Anza, CA on Tue, Feb 20, 1934, 2:35 AM GMT-8 (10:35 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.6 22km WNW of Westmorland, CA. This one was a foreshock.

Anza forecastMore in California

Map

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

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The earthquake

Magnitude
3.8 (ML, local (Richter)), minor
Magnitude from
Southern California Seismic Network
Local time
UTC
1934-02-20 10:35:05 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
33.449° N, 116.572° 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 3.7 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.17
Depth from
Operator assigned
Station coverage gap
275°, 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: 21 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 3.516km NNE of Thousand Palms, CA · 33823 days ago · 15 km deep · 61 km away
  2. 2.42km SE of Mead Valley, CA · 33820 days ago · 6 km deep · 77 km away
  3. 3.215km SE of Ocotillo Wells, CA · 33817 days ago · 6 km deep · 68 km away
  4. 2.75km NNW of Borrego Springs, CA · 33816 days ago · 6 km deep · 23 km away
  5. 3.417km S of Salton City, CA · 33816 days ago · 6 km deep · 68 km away
  6. 4.622km WNW of Westmorland, CA · 33816 days ago · 6 km deep · 78 km away
  7. 2.65km SSE of Salton City, CA · 33809 days ago · 6 km deep · 62 km away
  8. 2.57km SW of Salton City, CA · 33809 days ago · 6 km deep · 58 km away
  9. 2.618km ESE of Ocotillo Wells, CA · 33808 days ago · 6 km deep · 70 km away
  10. 3.018km E of Ocotillo Wells, CA · 33808 days ago · 6 km deep · 69 km away
  11. 2.69km ESE of Ocotillo Wells, CA · 33808 days ago · 6 km deep · 62 km away
  12. 2.84km SSE of Redlands, CA · 33790 days ago · 6 km deep · 84 km away
  13. 2.45km ENE of San Jacinto, CA · 33784 days ago · 6 km deep · 50 km away
  14. 3.517km SW of Westmorland, CA · 33784 days ago · 6 km deep · 95 km away
  15. 3.57km NW of Westmorland, CA · 33784 days ago · 6 km deep · 93 km away
  16. 3.416km ESE of Ocotillo Wells, CA · 33780 days ago · 6 km deep · 68 km away
  17. 2.810km NW of Anza, CA · 33779 days ago · 6 km deep · 25 km away
  18. 2.813km ENE of Desert Hot Springs, CA · 33779 days ago · 6 km deep · 63 km away
  19. 3.512km N of Westmorland, CA · 33777 days ago · 6 km deep · 93 km away
  20. 3.013km WNW of Calipatria, CA · 33777 days ago · 6 km deep · 92 km away
  21. 2.67km WNW of Oasis, CA · 33777 days ago · 6 km deep · 38 km away

Before

  1. 3.07km NNW of Pala, CA · 33830 days ago · 6 km deep · 49 km away
  2. 2.622km NNE of Ocotillo, CA · 33837 days ago · 6 km deep · 86 km away
  3. 2.715km WSW of Westmorland, CA · 33837 days ago · 6 km deep · 93 km away
  4. 2.68km SE of Bombay Beach, CA · 33838 days ago · 6 km deep · 86 km away
  5. 2.512km S of Borrego Springs, CA · 33839 days ago · 6 km deep · 38 km away
  6. 3.416km E of Anza, CA · 33839 days ago · 6 km deep · 13 km away
  7. 2.59km N of Aguanga, CA · 33842 days ago · 6 km deep · 27 km away
  8. 2.03km S of Highland, CA · 33849 days ago · 6 km deep · 93 km away
  9. 3.712km NNW of Joshua Tree, CA · 33851 days ago · 6 km deep · 89 km away
  10. 2.54km WNW of Idyllwild, CA · 33853 days ago · 6 km deep · 38 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3362002. Read Thu, Oct 1, 2026, 5:39 PM UTC.