Chile earthquakes

M4.6 earthquake 38 km W of San Antonio, Chile

A magnitude 4.6 earthquake struck 38 km W of San Antonio, Chile on Tue, May 21, 1985, 2:24 AM GMT-4 (06:24 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.3 33 km SW of Valparaíso, Chile. 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
4.6 (mb), light
Local time
UTC
1985-05-21 06:24:29 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
33.608° S, 72.026° 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 1.6 and up: 32 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 4.569 km WNW of Cartagena, Chile · 15097 days ago · 33 km deep · 37 km away
  2. 4.661 km WNW of Cartagena, Chile · 15096 days ago · 56 km deep · 35 km away
  3. 4.543 km NW of Valparaíso, Chile · 15093 days ago · 33 km deep · 96 km away
  4. 4.6107 km WSW of San Antonio, Chile · 15091 days ago · 33 km deep · 75 km away
  5. 3.539 km WSW of Valparaíso, Chile · 15088 days ago · 33 km deep · 44 km away
  6. 3.990 km W of San Antonio, Chile · 15085 days ago · 33 km deep · 52 km away
  7. 4.650 km SW of Valparaíso, Chile · 15081 days ago · 33 km deep · 35 km away
  8. 5.333 km SW of Valparaíso, Chile · 15080 days ago · 37 km deep · 43 km away
  9. 3.964 km WNW of Cartagena, Chile · 15080 days ago · 27 km deep · 33 km away
  10. 4.461 km W of San Antonio, Chile · 15071 days ago · 33 km deep · 23 km away
  11. 4.511 km SW of Valparaíso, Chile · 15065 days ago · 33 km deep · 63 km away
  12. 5.134 km WNW of Cartagena, Chile · 15065 days ago · 33 km deep · 23 km away
  13. 5.557 km WNW of Cartagena, Chile · 15054 days ago · 33 km deep · 25 km away
  14. 4.568 km WNW of Cartagena, Chile · 15054 days ago · 33 km deep · 35 km away
  15. 5.553 km WNW of Cartagena, Chile · 15054 days ago · 40 km deep · 26 km away
  16. 4.365 km W of Cartagena, Chile · 15053 days ago · 33 km deep · 28 km away
  17. 4.865 km W of Cartagena, Chile · 15053 days ago · 33 km deep · 30 km away
  18. 4.769 km WNW of Cartagena, Chile · 15053 days ago · 29 km deep · 36 km away
  19. 6.042 km WNW of Valparaíso, Chile · 15052 days ago · 31 km deep · 73 km away
  20. 4.769 km W of Valparaíso, Chile · 15052 days ago · 10 km deep · 74 km away
  21. 4.6Off the coast of Valparaiso, Chile · 15052 days ago · 10 km deep · 71 km away
  22. 4.520 km WSW of Valparaíso, Chile · 15052 days ago · 33 km deep · 58 km away
  23. 4.454 km WNW of Valparaíso, Chile · 15051 days ago · 33 km deep · 77 km away
  24. 4.837 km WNW of Valparaíso, Chile · 15051 days ago · 45 km deep · 83 km away
  25. 5.545 km W of Valparaíso, Chile · 15048 days ago · 29 km deep · 70 km away
  26. 3.574 km W of Valparaíso, Chile · 15048 days ago · 33 km deep · 75 km away
  27. 4.570 km W of Cartagena, Chile · 15047 days ago · 33 km deep · 32 km away
  28. 4.979 km WSW of Valparaíso, Chile · 15045 days ago · 33 km deep · 50 km away
  29. 4.537 km NW of Valparaíso, Chile · 15042 days ago · 33 km deep · 87 km away
  30. 5.531 km NNW of Valparaíso, Chile · 15042 days ago · 33 km deep · 99 km away
  31. 5.129 km W of Valparaíso, Chile · 15042 days ago · 33 km deep · 60 km away
  32. 4.698 km W of Cartagena, Chile · 15040 days ago · 33 km deep · 62 km away

Before

  1. 4.953 km W of Cartagena, Chile · 15100 days ago · 33 km deep · 19 km away
  2. 4.678 km WSW of San Antonio, Chile · 15101 days ago · 33 km deep · 43 km away
  3. 4.982 km WSW of San Antonio, Chile · 15102 days ago · 33 km deep · 52 km away
  4. 5.671 km WSW of San Antonio, Chile · 15102 days ago · 33 km deep · 40 km away
  5. 4.583 km WSW of San Antonio, Chile · 15102 days ago · 33 km deep · 53 km away
  6. 5.4109 km WNW of Santa Cruz, Chile · 15104 days ago · 33 km deep · 85 km away
  7. 4.942 km W of Valparaíso, Chile · 15106 days ago · 33 km deep · 60 km away
  8. 4.7Off the coast of Valparaiso, Chile · 15109 days ago · 33 km deep · 3 km away
  9. 4.832 km NW of Valparaíso, Chile · 15113 days ago · 46 km deep · 92 km away
  10. 5.613 km WNW of Valparaíso, Chile · 15123 days ago · 33 km deep · 72 km away
  11. 4.776 km W of Cartagena, Chile · 15129 days ago · 33 km deep · 39 km away
  12. 4.359 km W of Cartagena, Chile · 15129 days ago · 33 km deep · 23 km away
  13. 4.960 km W of Cartagena, Chile · 15129 days ago · 33 km deep · 26 km away
  14. 4.342 km WSW of San Antonio, Chile · 15129 days ago · 33 km deep · 22 km away
  15. 4.664 km W of San Antonio, Chile · 15129 days ago · 33 km deep · 26 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002f1f. Read Tue, Sep 22, 2026, 9:25 PM UTC.