Chile earthquakes

M4.0 earthquake 66 km SW of San Antonio, Chile

A magnitude 4.0 earthquake struck 66 km SW of San Antonio, Chile on Thu, Apr 11, 1985, 8:44 AM GMT-4 (12:44 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M4.8 55 km SW of San Antonio, Chile. This one was a foreshock.

San Antonio forecastMore in Chile

Map

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

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The earthquake

Magnitude
4.0 (mb), light
Local time
UTC
1985-04-11 12:44:45 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
33.948° S, 72.193° W
Region
Chile
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.

Depth from
OPERATOR_ASSIGNED

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 35 in the 60 days after this one and 35 in the 30 days before it.

After

  1. 3.272 km WSW of San Antonio, Chile · 15138 days ago · 33 km deep · 7 km away
  2. 3.379 km SW of San Antonio, Chile · 15138 days ago · 33 km deep · 12 km away
  3. 3.5124 km W of Cartagena, Chile · 15137 days ago · 33 km deep · 83 km away
  4. 4.855 km SW of San Antonio, Chile · 15136 days ago · 33 km deep · 16 km away
  5. 5.633 km WNW of Cartagena, Chile · 15135 days ago · 33 km deep · 55 km away
  6. 4.562 km W of San Antonio, Chile · 15135 days ago · 33 km deep · 35 km away
  7. 4.571 km SW of San Antonio, Chile · 15135 days ago · 33 km deep · 12 km away
  8. 4.297 km WSW of San Antonio, Chile · 15135 days ago · 33 km deep · 32 km away
  9. 4.868 km W of Valparaíso, Chile · 15134 days ago · 33 km deep · 93 km away
  10. 4.674 km WSW of Valparaíso, Chile · 15134 days ago · 33 km deep · 88 km away
  11. 4.684 km WSW of San Antonio, Chile · 15132 days ago · 33 km deep · 20 km away
  12. 4.574 km W of Valparaíso, Chile · 15130 days ago · 33 km deep · 90 km away
  13. 4.664 km W of San Antonio, Chile · 15129 days ago · 33 km deep · 34 km away
  14. 4.342 km WSW of San Antonio, Chile · 15129 days ago · 33 km deep · 24 km away
  15. 4.960 km W of Cartagena, Chile · 15128 days ago · 33 km deep · 55 km away
  16. 4.359 km W of Cartagena, Chile · 15128 days ago · 33 km deep · 48 km away
  17. 4.776 km W of Cartagena, Chile · 15128 days ago · 33 km deep · 53 km away
  18. 4.190 km N of Constitución, Chile · 15117 days ago · 33 km deep · 70 km away
  19. 4.7Off the coast of Valparaiso, Chile · 15108 days ago · 33 km deep · 38 km away
  20. 4.942 km W of Valparaíso, Chile · 15106 days ago · 33 km deep · 98 km away
  21. 5.4109 km WNW of Santa Cruz, Chile · 15103 days ago · 33 km deep · 44 km away
  22. 4.583 km WSW of San Antonio, Chile · 15101 days ago · 33 km deep · 18 km away
  23. 5.671 km WSW of San Antonio, Chile · 15101 days ago · 33 km deep · 11 km away
  24. 4.982 km WSW of San Antonio, Chile · 15101 days ago · 33 km deep · 16 km away
  25. 4.678 km WSW of San Antonio, Chile · 15101 days ago · 33 km deep · 23 km away
  26. 4.953 km W of Cartagena, Chile · 15100 days ago · 33 km deep · 50 km away
  27. 4.638 km W of San Antonio, Chile · 15099 days ago · 33 km deep · 41 km away
  28. 4.569 km WNW of Cartagena, Chile · 15097 days ago · 33 km deep · 63 km away
  29. 4.661 km WNW of Cartagena, Chile · 15096 days ago · 56 km deep · 69 km away
  30. 4.6107 km WSW of San Antonio, Chile · 15091 days ago · 33 km deep · 42 km away
  31. 3.539 km WSW of Valparaíso, Chile · 15088 days ago · 33 km deep · 84 km away
  32. 3.990 km W of San Antonio, Chile · 15084 days ago · 33 km deep · 47 km away
  33. 4.650 km SW of Valparaíso, Chile · 15081 days ago · 33 km deep · 73 km away
  34. 5.333 km SW of Valparaíso, Chile · 15080 days ago · 37 km deep · 83 km away
  35. 3.964 km WNW of Cartagena, Chile · 15080 days ago · 27 km deep · 62 km away

Before

  1. 3.010 km N of Cartagena, Chile · 15139 days ago · 33 km deep · 76 km away
  2. 4.274 km WSW of San Antonio, Chile · 15140 days ago · 33 km deep · 9 km away
  3. 7.259 km S of San Antonio, Chile · 15141 days ago · 38 km deep · 57 km away
  4. 4.943 km WSW of Valparaíso, Chile · 15147 days ago · 33 km deep · 90 km away
  5. 4.271 km W of Cartagena, Chile · 15150 days ago · 33 km deep · 53 km away
  6. 4.765 km WSW of Valparaíso, Chile · 15151 days ago · 33 km deep · 79 km away
  7. 4.680 km WNW of Santa Cruz, Chile · 15152 days ago · 33 km deep · 34 km away
  8. 4.7105 km WNW of Santa Cruz, Chile · 15153 days ago · 33 km deep · 46 km away
  9. 4.280 km SW of San Antonio, Chile · 15155 days ago · 10 km deep · 18 km away
  10. 4.5117 km N of Constitución, Chile · 15156 days ago · 33 km deep · 56 km away
  11. 4.7101 km SW of San Antonio, Chile · 15156 days ago · 33 km deep · 35 km away
  12. 6.586 km WNW of Santa Cruz, Chile · 15156 days ago · 45 km deep · 34 km away
  13. 5.789 km WNW of Santa Cruz, Chile · 15157 days ago · 26 km deep · 43 km away
  14. 5.658 km WSW of Valparaíso, Chile · 15158 days ago · 53 km deep · 78 km away
  15. 5.776 km NW of Santa Cruz, Chile · 15158 days ago · 57 km deep · 33 km away
  16. 3.597 km W of Cartagena, Chile · 15159 days ago · 33 km deep · 65 km away
  17. 5.173 km WNW of Santa Cruz, Chile · 15159 days ago · 33 km deep · 50 km away
  18. 5.223 km NW of Cartagena, Chile · 15161 days ago · 33 km deep · 70 km away
  19. 4.738 km WNW of Cartagena, Chile · 15162 days ago · 33 km deep · 67 km away
  20. 4.480 km WSW of Valparaíso, Chile · 15162 days ago · 33 km deep · 75 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002dq3. Read Tue, Sep 22, 2026, 10:54 AM UTC.