California earthquakes

M3.5 earthquake 11km NE of Cabazon, CA

A magnitude 3.5 earthquake struck 11km NE of Cabazon, CA on Sun, Oct 10, 1943, 9:53 PM GMT-7 (04:53 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.4 8km W of Morongo Valley, CA. This one was a foreshock.

Cabazon 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
3.5 (ML, local (Richter)), minor
Magnitude from
Southern California Seismic Network
Local time
UTC
1943-10-11 04:53:23 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
33.986° N, 116.699° 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 1.6 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.15
Depth from
Operator assigned
Station coverage gap
270°, 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: 15 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 4.412km N of Big Bear City, CA · 30307 days ago · 6 km deep · 44 km away
  2. 3.413km N of Big Bear City, CA · 30306 days ago · 6 km deep · 45 km away
  3. 4.211km N of Big Bear City, CA · 30305 days ago · 6 km deep · 44 km away
  4. 3.015km ESE of Lucerne Valley, CA · 30305 days ago · 6 km deep · 47 km away
  5. 3.94km S of Loma Linda, CA · 30297 days ago · 15 km deep · 51 km away
  6. 3.221km SSW of La Quinta, CA · 30294 days ago · 6 km deep · 64 km away
  7. 3.518km NE of Warner Springs, CA · 30293 days ago · 1 km deep · 68 km away
  8. 2.918km NNW of Borrego Springs, CA · 30293 days ago · 13 km deep · 69 km away
  9. 4.311km NE of Indio, CA · 30290 days ago · 6 km deep · 55 km away
  10. 2.512km N of Big Bear City, CA · 30284 days ago · 6 km deep · 44 km away
  11. 2.95km SSE of Valle Vista, CA · 30276 days ago · 6 km deep · 34 km away
  12. 4.48km W of Morongo Valley, CA · 30273 days ago · 6 km deep · 6 km away
  13. 3.38km SE of Running Springs, CA · 30268 days ago · 6 km deep · 37 km away
  14. 2.89km NNE of Joshua Tree, CA · 30252 days ago · 6 km deep · 47 km away
  15. 3.012km ENE of Cabazon, CA · 30251 days ago · 6 km deep · 4 km away

Before

  1. 2.812km NNE of Yucaipa, CA · 30315 days ago · 6 km deep · 30 km away
  2. 3.322km NNW of Borrego Springs, CA · 30322 days ago · 6 km deep · 65 km away
  3. 2.917km SE of Anza, CA · 30322 days ago · 4 km deep · 61 km away
  4. 2.63km W of Muscoy, CA · 30327 days ago · 6 km deep · 65 km away
  5. 2.53km NNE of Fontana, CA · 30332 days ago · 12 km deep · 70 km away
  6. 3.07km NNE of Lake Arrowhead, CA · 30332 days ago · 1 km deep · 56 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3366400. Read Mon, Oct 5, 2026, 3:26 AM UTC.