California earthquakes

M3.2 earthquake 23km NE of Pine Valley, CA

A magnitude 3.2 earthquake struck 23km NE of Pine Valley, CA on Sun, Oct 13, 1940, 3:54 AM GMT-8 (11:54 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.7 17km E of Ocotillo Wells, CA. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
3.2 (ml), minor
Local time
UTC
1940-10-13 11:54:50 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
32.938° N, 116.323° 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 11.7 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.06
Depth from
Operator assigned
Station coverage gap
348°, 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: 12 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.79km SW of Ocotillo Wells, CA · 31388 days ago · 6 km deep · 20 km away
  2. 3.717km E of Ocotillo Wells, CA · 31387 days ago · 6 km deep · 41 km away
  3. 3.44km W of Brawley, CA · 31386 days ago · 6 km deep · 70 km away
  4. 4.19km SSW of Borrego Springs, CA · 31383 days ago · 6 km deep · 28 km away
  5. 3.38km W of Ocotillo Wells, CA · 31383 days ago · 6 km deep · 25 km away
  6. 3.20km ENE of Ocotillo Wells, CA · 31377 days ago · 6 km deep · 29 km away
  7. 2.710km ENE of Ocotillo Wells, CA · 31355 days ago · 6 km deep · 38 km away
  8. 3.519km E of Ocotillo, CA · 31353 days ago · 6 km deep · 54 km away
  9. 3.56km N of Imperial, CA · 31350 days ago · 6 km deep · 71 km away
  10. 3.513km SSW of Salton City, CA · 31350 days ago · 6 km deep · 41 km away
  11. 2.514km S of Anza, CA · 31343 days ago · 6 km deep · 63 km away
  12. 3.115km NE of Warner Springs, CA · 31338 days ago · 8 km deep · 52 km away

Before

  1. 3.44km NE of Heber, CA · 31393 days ago · 6 km deep · 80 km away
  2. 2.810km SE of Idyllwild, CA · 31394 days ago · 6 km deep · 88 km away
  3. 2.916km S of Salton City, CA · 31396 days ago · 6 km deep · 42 km away
  4. 3.016km S of Salton City, CA · 31396 days ago · 6 km deep · 42 km away
  5. 4.114km S of Salton City, CA · 31397 days ago · 6 km deep · 44 km away
  6. 3.012km SSE of Julian, CA · 31403 days ago · 6 km deep · 21 km away
  7. 3.214km SW of Puebla, B.C., MX · 31418 days ago · 6 km deep · 97 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3365474. Read Tue, Sep 22, 2026, 8:52 PM UTC.