California earthquakes

M1.6 earthquake 32km W of Ludlow, CA

A magnitude 1.6 earthquake struck 32km W of Ludlow, CA on Tue, Aug 25, 1981, 6:11 AM PDT (13:11 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.5 4km NE of San Bernardino, 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
1.6 (Mh), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1981-08-25 13:11:37 UTC
Depth
4.7 km (2.9 mi), shallow
Epicenter
34.768° N, 116.503° 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 0.8 km horizontally, 31.6 km in depth
Depth from
Operator assigned
Station coverage gap
131°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 64 in the 60 days after this one and 36 in the 30 days before it.

After

  1. 1.932km W of Ludlow, CA · 16473 days ago · 5 km deep · 1 km away
  2. 1.612km NE of Thousand Palms, CA · 16471 days ago · 5 km deep · 99 km away
  3. 2.519km N of Yucca Valley, CA · 16470 days ago · -1 km deep · 54 km away
  4. 2.06km NNE of Cabazon, CA · 16470 days ago · 6 km deep · 93 km away
  5. 1.632km SE of Barstow, CA · 16467 days ago · -1 km deep · 26 km away
  6. 1.716km SSW of Amboy, CA · 16464 days ago · 5 km deep · 75 km away
  7. 1.525km N of Yucca Valley, CA · 16464 days ago · 0 km deep · 48 km away
  8. 2.28km NNE of Cabazon, CA · 16461 days ago · 6 km deep · 90 km away
  9. 1.522km N of Yucca Valley, CA · 16457 days ago · -1 km deep · 51 km away
  10. 2.814km W of Morongo Valley, CA · 16457 days ago · 9 km deep · 82 km away
  11. 1.63km ENE of Lake Arrowhead, CA · 16456 days ago · 5 km deep · 83 km away
  12. 2.05km NNE of San Bernardino, CA · 16456 days ago · 0 km deep · 97 km away
  13. 3.54km NE of San Bernardino, CA · 16455 days ago · 8 km deep · 97 km away
  14. 1.94km NE of San Bernardino, CA · 16455 days ago · 5 km deep · 98 km away
  15. 1.54km NNE of San Bernardino, CA · 16454 days ago · 1 km deep · 98 km away
  16. 1.53km NE of San Bernardino, CA · 16454 days ago · 2 km deep · 98 km away
  17. 2.94km NE of San Bernardino, CA · 16454 days ago · 2 km deep · 98 km away
  18. 1.93km NE of San Bernardino, CA · 16454 days ago · 2 km deep · 98 km away
  19. 1.66km W of Desert Hot Springs, CA · 16454 days ago · 10 km deep · 91 km away
  20. 2.44km NNE of San Bernardino, CA · 16453 days ago · 3 km deep · 98 km away
  21. 2.15km NNE of San Bernardino, CA · 16453 days ago · 1 km deep · 97 km away
  22. 1.64km NE of San Bernardino, CA · 16453 days ago · 8 km deep · 98 km away
  23. 1.94km NE of San Bernardino, CA · 16453 days ago · 2 km deep · 98 km away
  24. 2.64km NNE of San Bernardino, CA · 16453 days ago · 5 km deep · 97 km away
  25. 1.89km E of Cabazon, CA · 16453 days ago · 15 km deep · 95 km away
  26. 2.54km NE of San Bernardino, CA · 16453 days ago · 1 km deep · 98 km away
  27. 2.95km NE of San Bernardino, CA · 16452 days ago · 4 km deep · 97 km away
  28. 2.75km NNE of San Bernardino, CA · 16452 days ago · 1 km deep · 97 km away
  29. 2.15km NNE of San Bernardino, CA · 16452 days ago · 4 km deep · 97 km away
  30. 2.55km NE of San Bernardino, CA · 16451 days ago · 1 km deep · 97 km away
  31. 2.710km NE of Lake Arrowhead, CA · 16451 days ago · 3 km deep · 75 km away
  32. 1.96km WSW of Morongo Valley, CA · 16451 days ago · 11 km deep · 83 km away
  33. 1.77km NNE of Cabazon, CA · 16448 days ago · 7 km deep · 91 km away
  34. 1.518km NNW of Joshua Tree, CA · 16447 days ago · 9 km deep · 55 km away
  35. 2.423km N of Yucca Valley, CA · 16446 days ago · 0 km deep · 50 km away
  36. 1.715km NE of Boron, CA · 16443 days ago · 5 km deep · 99 km away
  37. 2.25km NNE of San Bernardino, CA · 16443 days ago · 1 km deep · 96 km away
  38. 3.310km NNE of Banning, CA · 16442 days ago · 21 km deep · 90 km away
  39. 1.610km NNE of Banning, CA · 16441 days ago · 19 km deep · 89 km away
  40. 2.212km NNE of Lake Arrowhead, CA · 16435 days ago · -1 km deep · 76 km away
  41. 1.629km WNW of Ludlow, CA · 16433 days ago · 5 km deep · 7 km away
  42. 1.56km SW of Lucerne Valley, CA · 16432 days ago · 1 km deep · 62 km away
  43. 1.96km WNW of Desert Hot Springs, CA · 16432 days ago · 7 km deep · 88 km away
  44. 1.516km N of Joshua Tree, CA · 16432 days ago · 4 km deep · 57 km away
  45. 2.52km ESE of Cabazon, CA · 16430 days ago · 16 km deep · 98 km away
  46. 2.46km WSW of Lucerne Valley, CA · 16429 days ago · 1 km deep · 61 km away
  47. 2.35km E of Calimesa, CA · 16429 days ago · 13 km deep · 98 km away
  48. 2.019km NE of Lucerne Valley, CA · 16427 days ago · -2 km deep · 38 km away
  49. 1.75km NNE of Cabazon, CA · 16427 days ago · 17 km deep · 93 km away
  50. 3.513km SSW of Twentynine Palms, CA · 16424 days ago · 9 km deep · 89 km away
  51. 1.724km NNW of Yucca Valley, CA · 16423 days ago · 0 km deep · 51 km away
  52. 1.518km WNW of Amboy, CA · 16421 days ago · 5 km deep · 55 km away
  53. 1.64km NNE of Cabazon, CA · 16421 days ago · 16 km deep · 95 km away
  54. 1.823km NNW of Joshua Tree, CA · 16420 days ago · -1 km deep · 50 km away
  55. 1.639km SSE of Fort Irwin, CA · 16419 days ago · 5 km deep · 19 km away
  56. 1.940km SSE of Fort Irwin, CA · 16419 days ago · 0 km deep · 17 km away
  57. 2.317km NW of Yucca Valley, CA · 16418 days ago · 8 km deep · 62 km away
  58. 3.024km N of Yucca Valley, CA · 16418 days ago · 1 km deep · 49 km away
  59. 1.624km N of Yucca Valley, CA · 16418 days ago · 1 km deep · 49 km away
  60. 1.79km SE of Big Bear City, CA · 16416 days ago · 8 km deep · 69 km away

The first 60 of 64.

Before

  1. 2.126km ENE of Barstow, CA · 16474 days ago · -1 km deep · 30 km away
  2. 1.810km N of Cabazon, CA · 16477 days ago · 15 km deep · 89 km away
  3. 1.813km NE of Thousand Palms, CA · 16478 days ago · 7 km deep · 97 km away
  4. 2.14km ESE of Highland, CA · 16479 days ago · 6 km deep · 95 km away
  5. 2.54km SE of Highland, CA · 16479 days ago · 7 km deep · 96 km away
  6. 1.94km SSE of Yucca Valley, CA · 16480 days ago · 7 km deep · 77 km away
  7. 2.94km S of Yucca Valley, CA · 16480 days ago · 2 km deep · 77 km away
  8. 2.74km S of Yucca Valley, CA · 16480 days ago · 2 km deep · 77 km away
  9. 1.68km ENE of Barstow, CA · 16481 days ago · 8 km deep · 43 km away
  10. 2.110km NE of Cabazon, CA · 16481 days ago · 12 km deep · 90 km away
  11. 2.330km NNW of Barstow, CA · 16481 days ago · -1 km deep · 70 km away
  12. 1.84km SSE of Yucca Valley, CA · 16481 days ago · 7 km deep · 77 km away
  13. 1.53km ESE of Highland, CA · 16482 days ago · 4 km deep · 95 km away
  14. 2.94km SE of Highland, CA · 16482 days ago · 4 km deep · 96 km away
  15. 2.34km ESE of Highland, CA · 16482 days ago · 7 km deep · 95 km away
  16. 2.04km ESE of Highland, CA · 16483 days ago · 6 km deep · 95 km away
  17. 1.53km ESE of Highland, CA · 16483 days ago · 8 km deep · 95 km away
  18. 1.73km ESE of Highland, CA · 16483 days ago · 4 km deep · 95 km away
  19. 1.84km ESE of Highland, CA · 16483 days ago · 7 km deep · 95 km away
  20. 2.44km SE of Highland, CA · 16483 days ago · 8 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci521697. Read Thu, Oct 1, 2026, 8:30 PM UTC.