Mexico earthquakes

M3.6 earthquake 12km WNW of Tecolots, B.C., MX

A magnitude 3.6 earthquake struck 12km WNW of Tecolots, B.C., MX on Wed, May 22, 1940, 4:12 PM GMT-8 (00:12 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.7 7km W of Hermosillo, B.C., MX. 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
3.6 (ml), minor
Local time
UTC
1940-05-23 00:12:15 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
32.601° N, 115.111° W
Region
Mexico
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 3.2 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.40
Depth from
Operator assigned
Station coverage gap
332°, poorly surrounded by stations
Stations used
2

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 30 in the 30 days before it.

After

  1. 3.510km E of Holtville, CA · 31540 days ago · 6 km deep · 29 km away
  2. 3.529km NW of Los Algodones, B.C., MX · 31531 days ago · 6 km deep · 33 km away
  3. 3.426km N of Tecolots, B.C., MX · 31531 days ago · 6 km deep · 24 km away
  4. 4.28km WNW of Delta, B.C., MX · 31531 days ago · 6 km deep · 30 km away
  5. 4.77km W of Hermosillo, B.C., MX · 31531 days ago · 6 km deep · 15 km away
  6. 3.19km NE of Imperial, CA · 31528 days ago · 6 km deep · 49 km away
  7. 3.542km N of Yuma, AZ · 31528 days ago · 6 km deep · 67 km away
  8. 3.74km NE of Heber, CA · 31527 days ago · 6 km deep · 40 km away
  9. 3.420km ENE of Holtville, CA · 31526 days ago · 6 km deep · 34 km away
  10. 3.34km NE of Heber, CA · 31525 days ago · 6 km deep · 40 km away
  11. 4.34km NE of Heber, CA · 31525 days ago · 6 km deep · 40 km away
  12. 3.64km NE of Heber, CA · 31506 days ago · 6 km deep · 40 km away
  13. 3.44km NE of Heber, CA · 31504 days ago · 6 km deep · 41 km away
  14. 3.111km E of Brawley, CA · 31498 days ago · 6 km deep · 50 km away
  15. 3.921km WNW of Westmorland, CA · 31489 days ago · 6 km deep · 88 km away
  16. 3.718km NW of Westmorland, CA · 31489 days ago · 6 km deep · 86 km away
  17. 3.522km SSE of Salton City, CA · 31489 days ago · 6 km deep · 91 km away
  18. 3.819km SSE of Salton City, CA · 31489 days ago · 6 km deep · 93 km away
  19. 3.83km SW of Holtville, CA · 31488 days ago · 6 km deep · 34 km away
  20. 4.324km SSE of Salton City, CA · 31481 days ago · 6 km deep · 90 km away

Before

  1. 3.514km E of Puebla, B.C., MX · 31541 days ago · 6 km deep · 10 km away
  2. 3.634km S of Progreso, B.C., MX · 31541 days ago · 6 km deep · 62 km away
  3. 4.27km S of Brawley, CA · 31541 days ago · 6 km deep · 54 km away
  4. 3.86km W of Holtville, CA · 31542 days ago · 6 km deep · 39 km away
  5. 3.47km ESE of Imperial, CA · 31542 days ago · 6 km deep · 45 km away
  6. 3.824km ESE of Estacion Coahuila, B.C., MX · 31542 days ago · 6 km deep · 60 km away
  7. 3.47km ESE of Imperial, CA · 31543 days ago · 6 km deep · 45 km away
  8. 3.512km SSE of Holtville, CA · 31543 days ago · 6 km deep · 24 km away
  9. 3.511km ENE of Holtville, CA · 31543 days ago · 6 km deep · 30 km away
  10. 3.67km ESE of Imperial, CA · 31544 days ago · 6 km deep · 45 km away
  11. 4.37km ESE of Imperial, CA · 31544 days ago · 6 km deep · 45 km away
  12. 4.08km S of Calipatria, CA · 31544 days ago · 6 km deep · 63 km away
  13. 4.07km ESE of Imperial, CA · 31544 days ago · 6 km deep · 45 km away
  14. 4.27km ESE of Imperial, CA · 31544 days ago · 6 km deep · 45 km away
  15. 4.17km ESE of Imperial, CA · 31544 days ago · 6 km deep · 45 km away
  16. 4.37km ESE of Imperial, CA · 31544 days ago · 6 km deep · 45 km away
  17. 4.55 km NE of Heber, California · 31544 days ago · 16 km deep · 39 km away
  18. 5.27km ESE of Imperial, CA · 31544 days ago · 6 km deep · 45 km away
  19. 5.27km ESE of Imperial, CA · 31544 days ago · 6 km deep · 45 km away
  20. 4.77km ESE of Imperial, CA · 31544 days ago · 6 km deep · 45 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3365313. Read Tue, Sep 29, 2026, 2:43 PM UTC.