California earthquakes

M1.7 earthquake 25km WNW of Ocotillo, CA

A magnitude 1.7 earthquake struck 25km WNW of Ocotillo, CA on Mon, Feb 9, 1981, 3:42 AM PST (11:42 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M1.9 17km ESE of Anza, 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
1.7 (mh), micro
Local time
UTC
1981-02-09 11:42:42 UTC
Depth
5.4 km (3.4 mi), shallow
Epicenter
32.819° N, 116.237° 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 1.0 km horizontally, 13.8 km in depth
Magnitude uncertainty
±0.55
Depth from
From location
Station coverage gap
159°
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: 192 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 1.917km ESE of Anza, CA · 16659 days ago · 9 km deep · 79 km away
  2. 1.613km E of Borrego Springs, CA · 16659 days ago · 8 km deep · 50 km away
  3. 1.710km NE of Aguanga, CA · 16658 days ago · 3 km deep · 91 km away
  4. 2.010km NE of Aguanga, CA · 16658 days ago · 1 km deep · 90 km away
  5. 2.09km NE of Aguanga, CA · 16658 days ago · 2 km deep · 91 km away
  6. 1.99km NE of Aguanga, CA · 16658 days ago · 4 km deep · 92 km away
  7. 1.89km NE of Aguanga, CA · 16658 days ago · 4 km deep · 91 km away
  8. 2.68km NE of Aguanga, CA · 16658 days ago · 3 km deep · 91 km away
  9. 2.18km NE of Aguanga, CA · 16658 days ago · 4 km deep · 91 km away
  10. 2.29km NE of Aguanga, CA · 16658 days ago · 5 km deep · 91 km away
  11. 1.910km ENE of Aguanga, CA · 16658 days ago · 5 km deep · 90 km away
  12. 1.510km NE of Aguanga, CA · 16658 days ago · 3 km deep · 92 km away
  13. 1.78km NE of Aguanga, CA · 16658 days ago · 4 km deep · 91 km away
  14. 2.09km NE of Aguanga, CA · 16658 days ago · 2 km deep · 91 km away
  15. 1.68km NNW of Anza, CA · 16658 days ago · 16 km deep · 100 km away
  16. 2.09km NE of Aguanga, CA · 16658 days ago · 5 km deep · 91 km away
  17. 1.511km NE of Aguanga, CA · 16658 days ago · 5 km deep · 92 km away
  18. 1.74km S of Salton City, CA · 16657 days ago · 6 km deep · 56 km away
  19. 2.210km NE of Aguanga, CA · 16656 days ago · 4 km deep · 92 km away
  20. 1.910km NE of Aguanga, CA · 16656 days ago · 3 km deep · 91 km away
  21. 1.611km WSW of Anza, CA · 16656 days ago · 9 km deep · 91 km away
  22. 1.710km NE of Aguanga, CA · 16656 days ago · 4 km deep · 91 km away
  23. 2.411km SW of Puebla, B.C., MX · 16655 days ago · 6 km deep · 84 km away
  24. 2.429km NNE of Ensenada, B.C., MX · 16655 days ago · 6 km deep · 83 km away
  25. 2.310km WSW of Anza, CA · 16655 days ago · 4 km deep · 91 km away
  26. 1.611km WSW of Anza, CA · 16655 days ago · 5 km deep · 91 km away
  27. 1.66km ESE of Progreso, B.C., MX · 16654 days ago · 6 km deep · 73 km away
  28. 1.811km SE of Puebla, B.C., MX · 16653 days ago · 6 km deep · 97 km away
  29. 2.818km NNE of Pine Valley, CA · 16652 days ago · 5 km deep · 24 km away
  30. 1.78km NE of Aguanga, CA · 16651 days ago · 7 km deep · 92 km away
  31. 1.98km NE of Aguanga, CA · 16651 days ago · 4 km deep · 92 km away
  32. 1.68km WSW of Imperial, CA · 16650 days ago · 29 km deep · 55 km away
  33. 3.122km ESE of Anza, CA · 16649 days ago · 5 km deep · 79 km away
  34. 2.618km NNE of Pine Valley, CA · 16649 days ago · 7 km deep · 24 km away
  35. 2.99km NNE of Ocotillo Wells, CA · 16649 days ago · 6 km deep · 46 km away
  36. 2.258km E of Ensenada, B.C., MX · 16649 days ago · 6 km deep · 99 km away
  37. 1.66km SSW of Salton City, CA · 16649 days ago · 6 km deep · 53 km away
  38. 2.56km SSW of Salton City, CA · 16649 days ago · 13 km deep · 54 km away
  39. 1.85km NE of Westmorland, CA · 16648 days ago · 12 km deep · 67 km away
  40. 1.95km NE of Westmorland, CA · 16648 days ago · 11 km deep · 67 km away
  41. 1.950km ENE of Ensenada, B.C., MX · 16647 days ago · 6 km deep · 80 km away
  42. 2.864km ENE of Ensenada, B.C., MX · 16647 days ago · 6 km deep · 95 km away
  43. 2.356km E of Ensenada, B.C., MX · 16647 days ago · 6 km deep · 97 km away
  44. 1.65km N of Progreso, B.C., MX · 16646 days ago · 6 km deep · 65 km away
  45. 2.323km WSW of Westmorland, CA · 16646 days ago · 10 km deep · 39 km away
  46. 1.510km NE of Aguanga, CA · 16645 days ago · 4 km deep · 91 km away
  47. 1.66km E of Westmorland, CA · 16645 days ago · 10 km deep · 68 km away
  48. 2.362km ENE of Ensenada, B.C., MX · 16645 days ago · 6 km deep · 85 km away
  49. 2.08km SSW of Holtville, CA · 16645 days ago · 10 km deep · 76 km away
  50. 2.39km SSW of Holtville, CA · 16645 days ago · 10 km deep · 76 km away
  51. 2.29km SSW of Holtville, CA · 16645 days ago · 10 km deep · 77 km away
  52. 1.88km SSW of Holtville, CA · 16645 days ago · 10 km deep · 77 km away
  53. 2.555km E of Ensenada, B.C., MX · 16645 days ago · 6 km deep · 99 km away
  54. 2.161km ENE of Ensenada, B.C., MX · 16645 days ago · 6 km deep · 94 km away
  55. 2.210km NE of Mexicali, B.C., MX · 16645 days ago · 10 km deep · 79 km away
  56. 2.156km ENE of Ensenada, B.C., MX · 16644 days ago · 5 km deep · 94 km away
  57. 2.18km NE of Aguanga, CA · 16644 days ago · 3 km deep · 90 km away
  58. 2.322km W of Westmorland, CA · 16644 days ago · 11 km deep · 42 km away
  59. 2.68km N of Westmorland, CA · 16643 days ago · 14 km deep · 67 km away
  60. 1.910km NE of Aguanga, CA · 16643 days ago · 5 km deep · 91 km away

The first 60 of 192.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci12254415. Read Tue, Sep 22, 2026, 10:33 PM UTC.