Mexico earthquakes

M3.4 earthquake 43km SSW of Progreso, B.C., MX

A magnitude 3.4 earthquake struck 43km SSW of Progreso, B.C., MX on Mon, Sep 15, 1969, 8:39 PM GMT-7 (03:39 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.4 26km ENE of Pine Valley, 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
3.4 (ml), minor
Local time
UTC
1969-09-16 03:39:52 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
32.222° N, 115.756° 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 2.8 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.25
Depth from
Operator assigned
Station coverage gap
200°, poorly surrounded by stations
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 3.046km SSW of Progreso, B.C., MX · 20826 days ago · 6 km deep · 4 km away
  2. 3.020km W of Westmorland, CA · 20824 days ago · 6 km deep · 87 km away
  3. 3.121km SW of Ocotillo Wells, CA · 20816 days ago · 6 km deep · 98 km away
  4. 2.934km S of Progreso, B.C., MX · 20807 days ago · 6 km deep · 18 km away
  5. 3.040km SSW of Progreso, B.C., MX · 20806 days ago · 6 km deep · 3 km away
  6. 3.160km E of Maneadero, B.C., MX · 20803 days ago · 6 km deep · 52 km away
  7. 3.057km E of Maneadero, B.C., MX · 20803 days ago · 6 km deep · 53 km away
  8. 3.116km W of Progreso, B.C., MX · 20803 days ago · 6 km deep · 40 km away
  9. 4.426km ENE of Pine Valley, CA · 20798 days ago · 6 km deep · 93 km away
  10. 2.752km ENE of Ensenada, B.C., MX · 20790 days ago · 6 km deep · 39 km away
  11. 3.14km SSW of Brawley, CA · 20786 days ago · 6 km deep · 82 km away
  12. 2.526km W of Westmorland, CA · 20774 days ago · 6 km deep · 88 km away
  13. 3.549km WSW of Alberto Oviedo Mota, B.C., MX · 20770 days ago · 6 km deep · 17 km away
  14. 2.325km SE of Ocotillo Wells, CA · 20769 days ago · 6 km deep · 85 km away
  15. 2.525km NNE of Ocotillo, CA · 20767 days ago · 6 km deep · 79 km away
  16. 2.21km NW of El Centro, CA · 20767 days ago · 6 km deep · 66 km away

Before

  1. 2.77km ENE of Imperial, CA · 20827 days ago · 6 km deep · 75 km away
  2. 2.623km SW of Westmorland, CA · 20827 days ago · 6 km deep · 78 km away
  3. 2.932km S of Progreso, B.C., MX · 20831 days ago · 6 km deep · 17 km away
  4. 3.563km ENE of Ensenada, B.C., MX · 20839 days ago · 6 km deep · 30 km away
  5. 3.01km ESE of Guadalupe Victoria, B.C., MX · 20843 days ago · 6 km deep · 62 km away
  6. 2.420km SSW of Ocotillo Wells, CA · 20853 days ago · 6 km deep · 97 km away
  7. 2.519km SW of Ocotillo Wells, CA · 20853 days ago · 6 km deep · 99 km away
  8. 3.119km SW of Ocotillo Wells, CA · 20853 days ago · 6 km deep · 98 km away
  9. 4.017km SW of Ocotillo Wells, CA · 20853 days ago · 6 km deep · 99 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3326195. Read Wed, Sep 23, 2026, 5:18 PM UTC.