California earthquakes

M1.7 earthquake 21km SW of Ocotillo Wells, CA

A magnitude 1.7 earthquake struck 21km SW of Ocotillo Wells, CA on Fri, Feb 23, 1979, 8:53 PM PST (04:53 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.3 17km NNE of Warner Springs, 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
Magnitude from
Southern California Seismic Network
Local time
UTC
1979-02-24 04:53:08 UTC
Depth
10.2 km (6.3 mi), shallow
Epicenter
32.998° N, 116.283° 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 0.3 km horizontally, 1.8 km in depth
Depth from
From location
Station coverage gap
99°
Stations used
9

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 132 in the 60 days after this one and 90 in the 30 days before it.

After

  1. 1.68km WNW of Holtville, CA · 17386 days ago · 10 km deep · 79 km away
  2. 1.55km WNW of Brawley, CA · 17386 days ago · 9 km deep · 65 km away
  3. 1.723km WSW of Westmorland, CA · 17385 days ago · 7 km deep · 41 km away
  4. 1.515km W of Westmorland, CA · 17384 days ago · 6 km deep · 47 km away
  5. 1.616km ESE of Anza, CA · 17384 days ago · 15 km deep · 58 km away
  6. 2.217km W of Westmorland, CA · 17383 days ago · 5 km deep · 45 km away
  7. 1.818km W of Westmorland, CA · 17383 days ago · 5 km deep · 43 km away
  8. 2.310km SSW of Idyllwild, CA · 17382 days ago · 13 km deep · 84 km away
  9. 1.98km WSW of Puebla, B.C., MX · 17382 days ago · 6 km deep · 95 km away
  10. 1.612km S of Bombay Beach, CA · 17382 days ago · 6 km deep · 58 km away
  11. 1.74km ESE of Ocotillo, CA · 17380 days ago · 11 km deep · 43 km away
  12. 1.821km SSW of La Quinta, CA · 17380 days ago · 13 km deep · 57 km away
  13. 2.26km SW of Idyllwild, CA · 17380 days ago · 16 km deep · 91 km away
  14. 1.711km SW of Westmorland, CA · 17379 days ago · 5 km deep · 52 km away
  15. 2.012km NE of Vista, CA · 17379 days ago · 8 km deep · 86 km away
  16. 1.815km SSE of Salton City, CA · 17379 days ago · 10 km deep · 38 km away
  17. 2.011km NE of Ocotillo Wells, CA · 17378 days ago · 10 km deep · 32 km away
  18. 1.57km SSW of Idyllwild, CA · 17378 days ago · 16 km deep · 87 km away
  19. 1.815km NNW of Borrego Springs, CA · 17378 days ago · 16 km deep · 45 km away
  20. 1.610km SW of Idyllwild, CA · 17377 days ago · 16 km deep · 89 km away
  21. 1.923km ESE of Ocotillo Wells, CA · 17377 days ago · 10 km deep · 36 km away
  22. 2.024km NNW of Borrego Springs, CA · 17377 days ago · 12 km deep · 54 km away
  23. 1.926km SSW of Progreso, B.C., MX · 17376 days ago · 14 km deep · 93 km away
  24. 1.613km SE of Anza, CA · 17376 days ago · 11 km deep · 59 km away
  25. 2.78km WSW of Holtville, CA · 17375 days ago · 10 km deep · 80 km away
  26. 2.48km WSW of Holtville, CA · 17375 days ago · 10 km deep · 80 km away
  27. 2.04km NE of Imperial, CA · 17374 days ago · 10 km deep · 70 km away
  28. 2.110km ESE of Ocotillo, CA · 17374 days ago · 11 km deep · 49 km away
  29. 3.14km SE of Palomar Observatory, CA · 17374 days ago · 9 km deep · 63 km away
  30. 1.88km NW of Holtville, CA · 17374 days ago · 5 km deep · 81 km away
  31. 2.13km NNE of Heber, CA · 17373 days ago · 10 km deep · 76 km away
  32. 1.818km N of Borrego Springs, CA · 17373 days ago · 15 km deep · 48 km away
  33. 1.86km ENE of Westmorland, CA · 17373 days ago · 10 km deep · 67 km away
  34. 1.84km ENE of Ocotillo Wells, CA · 17372 days ago · 6 km deep · 25 km away
  35. 1.826km SSW of Ocotillo Wells, CA · 17372 days ago · 6 km deep · 9 km away
  36. 1.78km W of Holtville, CA · 17371 days ago · 6 km deep · 79 km away
  37. 2.96km SSW of Idyllwild, CA · 17371 days ago · 16 km deep · 89 km away
  38. 1.88km S of Idyllwild, CA · 17370 days ago · 16 km deep · 85 km away
  39. 1.720km ESE of Anza, CA · 17370 days ago · 13 km deep · 59 km away
  40. 1.526km SSW of Ocotillo Wells, CA · 17367 days ago · 6 km deep · 9 km away
  41. 2.216km SSW of Ocotillo Wells, CA · 17367 days ago · 12 km deep · 8 km away
  42. 1.57km ENE of El Centro, CA · 17366 days ago · 5 km deep · 76 km away
  43. 2.18km W of Holtville, CA · 17366 days ago · 10 km deep · 79 km away
  44. 2.78km ENE of El Centro, CA · 17365 days ago · 10 km deep · 78 km away
  45. 1.614km SW of Ocotillo Wells, CA · 17365 days ago · 11 km deep · 7 km away
  46. 2.710km SE of Bombay Beach, CA · 17364 days ago · 4 km deep · 66 km away
  47. 1.910km NW of Ocotillo Wells, CA · 17364 days ago · 7 km deep · 25 km away
  48. 2.111km NW of Anza, CA · 17364 days ago · 16 km deep · 82 km away
  49. 2.722km SSW of Tecate, B.C., MX · 17363 days ago · 6 km deep · 80 km away
  50. 1.78km S of Idyllwild, CA · 17363 days ago · 15 km deep · 85 km away
  51. 1.710km SE of Bombay Beach, CA · 17362 days ago · 5 km deep · 65 km away
  52. 1.98km ESE of Valle Vista, CA · 17362 days ago · 16 km deep · 95 km away
  53. 1.66km SE of Valle Vista, CA · 17362 days ago · 15 km deep · 95 km away
  54. 1.78km E of Heber, CA · 17361 days ago · 10 km deep · 83 km away
  55. 1.67km ESE of Ocotillo, CA · 17361 days ago · 4 km deep · 47 km away
  56. 1.95km W of Poway, CA · 17360 days ago · 6 km deep · 75 km away
  57. 2.421km ENE of Pine Valley, CA · 17359 days ago · 13 km deep · 11 km away
  58. 2.025km ESE of Primo Tapia, B.C., MX · 17359 days ago · 6 km deep · 100 km away
  59. 1.88km NNW of Borrego Springs, CA · 17359 days ago · 12 km deep · 37 km away
  60. 1.85km NNE of Anza, CA · 17358 days ago · 15 km deep · 74 km away

The first 60 of 132.

Before

  1. 1.58km WNW of Holtville, CA · 17386 days ago · 10 km deep · 78 km away
  2. 1.78km ENE of El Centro, CA · 17387 days ago · 12 km deep · 78 km away
  3. 1.86km W of Imperial, CA · 17388 days ago · 10 km deep · 63 km away
  4. 1.711km ENE of Thermal, CA · 17388 days ago · 1 km deep · 79 km away
  5. 2.019km NNW of Borrego Springs, CA · 17388 days ago · 15 km deep · 49 km away
  6. 1.98km SW of Holtville, CA · 17388 days ago · 10 km deep · 83 km away
  7. 1.56km W of Holtville, CA · 17389 days ago · 10 km deep · 80 km away
  8. 1.514km E of Julian, CA · 17391 days ago · 15 km deep · 17 km away
  9. 1.76km N of Borrego Springs, CA · 17391 days ago · 11 km deep · 36 km away
  10. 1.68km SW of Ocotillo Wells, CA · 17392 days ago · 6 km deep · 13 km away
  11. 2.010km ENE of Borrego Springs, CA · 17393 days ago · 3 km deep · 32 km away
  12. 1.97km NNE of Borrego Springs, CA · 17393 days ago · 11 km deep · 36 km away
  13. 2.58km WSW of Holtville, CA · 17393 days ago · 10 km deep · 80 km away
  14. 1.723km NNW of Borrego Springs, CA · 17394 days ago · 6 km deep · 53 km away
  15. 1.57km W of Holtville, CA · 17394 days ago · 10 km deep · 81 km away
  16. 2.422km NNW of Borrego Springs, CA · 17395 days ago · 4 km deep · 52 km away
  17. 1.624km NNW of Borrego Springs, CA · 17395 days ago · 6 km deep · 54 km away
  18. 1.712km NNE of Aguanga, CA · 17395 days ago · 6 km deep · 77 km away
  19. 1.523km N of Borrego Springs, CA · 17396 days ago · 6 km deep · 53 km away
  20. 1.724km N of Borrego Springs, CA · 17396 days ago · 7 km deep · 54 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3346310. Read Thu, Oct 1, 2026, 3:39 AM UTC.