California earthquakes

M1.8 earthquake 21km ESE of Anza, CA

A magnitude 1.8 earthquake struck 21km ESE of Anza, CA on Mon, May 4, 1981, 11:51 AM PDT (18:51 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M3.6 3km WNW of Lakeland Village, CA. This one was a foreshock.

Anza forecastMore in California

Map

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

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The earthquake

Magnitude
1.8 (Mc), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1981-05-04 18:51:32 UTC
Depth
12.9 km (8.0 mi), shallow
Epicenter
33.484° N, 116.460° 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 0.6 km horizontally, 0.8 km in depth
Depth from
From location
Station coverage gap
42°
Stations used
28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 182 in the 60 days after this one and 197 in the 30 days before it.

After

  1. 2.412km WSW of Niland, CA · 16587 days ago · 12 km deep · 82 km away
  2. 1.612km WSW of Niland, CA · 16587 days ago · 8 km deep · 83 km away
  3. 1.74km ESE of Niland, CA · 16587 days ago · 3 km deep · 96 km away
  4. 1.76km W of Westmorland, CA · 16587 days ago · 9 km deep · 88 km away
  5. 1.712km WSW of Niland, CA · 16587 days ago · 9 km deep · 83 km away
  6. 1.67km W of Westmorland, CA · 16587 days ago · 10 km deep · 87 km away
  7. 1.911km WSW of Niland, CA · 16586 days ago · 11 km deep · 83 km away
  8. 1.57km WSW of Calipatria, CA · 16586 days ago · 10 km deep · 92 km away
  9. 2.28km S of Calimesa, CA · 16586 days ago · 12 km deep · 74 km away
  10. 2.012km WSW of Niland, CA · 16586 days ago · 9 km deep · 82 km away
  11. 1.512km WSW of Niland, CA · 16586 days ago · 11 km deep · 83 km away
  12. 1.76km ESE of Niland, CA · 16586 days ago · 4 km deep · 97 km away
  13. 1.58km NE of Borrego Springs, CA · 16586 days ago · 10 km deep · 23 km away
  14. 1.812km WSW of Niland, CA · 16586 days ago · 11 km deep · 83 km away
  15. 1.612km WSW of Niland, CA · 16586 days ago · 10 km deep · 83 km away
  16. 1.821km WSW of Westmorland, CA · 16586 days ago · 7 km deep · 85 km away
  17. 1.95km ESE of Niland, CA · 16586 days ago · 5 km deep · 97 km away
  18. 2.06km N of Westmorland, CA · 16586 days ago · 10 km deep · 89 km away
  19. 1.913km WSW of Westmorland, CA · 16586 days ago · 6 km deep · 88 km away
  20. 1.612km WSW of Niland, CA · 16585 days ago · 9 km deep · 83 km away
  21. 1.610km NE of Aguanga, CA · 16585 days ago · 3 km deep · 30 km away
  22. 1.87km WSW of Westmorland, CA · 16585 days ago · 9 km deep · 88 km away
  23. 1.812km WSW of Niland, CA · 16585 days ago · 10 km deep · 83 km away
  24. 1.57km W of Westmorland, CA · 16585 days ago · 4 km deep · 87 km away
  25. 1.85km N of Westmorland, CA · 16585 days ago · 10 km deep · 90 km away
  26. 1.511km WSW of Anza, CA · 16585 days ago · 3 km deep · 30 km away
  27. 2.513km WSW of Westmorland, CA · 16585 days ago · 11 km deep · 87 km away
  28. 1.612km WSW of Westmorland, CA · 16585 days ago · 5 km deep · 86 km away
  29. 1.910km ENE of Aguanga, CA · 16585 days ago · 2 km deep · 29 km away
  30. 1.610km WSW of Garnet, CA · 16584 days ago · 14 km deep · 48 km away
  31. 1.510km ESE of Ocotillo Wells, CA · 16584 days ago · 4 km deep · 58 km away
  32. 1.58km WSW of Westmorland, CA · 16584 days ago · 8 km deep · 87 km away
  33. 1.630km WNW of Desert Center, CA · 16584 days ago · 5 km deep · 80 km away
  34. 1.620km NE of Thousand Palms, CA · 16584 days ago · 10 km deep · 56 km away
  35. 1.515km S of Salton City, CA · 16584 days ago · 8 km deep · 60 km away
  36. 1.69km WSW of Niland, CA · 16583 days ago · 5 km deep · 84 km away
  37. 2.09km WSW of Niland, CA · 16583 days ago · 6 km deep · 83 km away
  38. 1.810km WSW of Niland, CA · 16583 days ago · 5 km deep · 84 km away
  39. 1.710km NE of Aguanga, CA · 16583 days ago · 2 km deep · 30 km away
  40. 1.77km W of Westmorland, CA · 16583 days ago · 9 km deep · 88 km away
  41. 2.06km WSW of Calipatria, CA · 16582 days ago · 7 km deep · 92 km away
  42. 1.526km ENE of Pine Valley, CA · 16582 days ago · 6 km deep · 62 km away
  43. 1.613km WSW of Westmorland, CA · 16582 days ago · 6 km deep · 87 km away
  44. 1.912km WSW of Westmorland, CA · 16582 days ago · 8 km deep · 88 km away
  45. 1.913km WSW of Westmorland, CA · 16582 days ago · 10 km deep · 88 km away
  46. 1.511km ENE of Ocotillo Wells, CA · 16582 days ago · 7 km deep · 52 km away
  47. 2.06km ENE of Joshua Tree, CA · 16582 days ago · 0 km deep · 78 km away
  48. 1.55km NNW of Westmorland, CA · 16581 days ago · 5 km deep · 88 km away
  49. 1.66km ESE of Niland, CA · 16581 days ago · 4 km deep · 98 km away
  50. 1.84km ESE of Niland, CA · 16581 days ago · 5 km deep · 96 km away
  51. 1.82km SSE of Yucca Valley, CA · 16581 days ago · 6 km deep · 68 km away
  52. 1.713km NNE of Borrego Springs, CA · 16581 days ago · 4 km deep · 19 km away
  53. 1.76km ESE of Niland, CA · 16581 days ago · 5 km deep · 97 km away
  54. 2.010km ENE of Indio, CA · 16580 days ago · -1 km deep · 44 km away
  55. 2.06km WNW of Westmorland, CA · 16580 days ago · 10 km deep · 86 km away
  56. 1.56km ESE of Niland, CA · 16580 days ago · 7 km deep · 98 km away
  57. 1.86km NNE of Calipatria, CA · 16580 days ago · 6 km deep · 96 km away
  58. 2.06km W of Big Bear Lake, CA · 16580 days ago · 5 km deep · 97 km away
  59. 1.56km NW of San Jacinto, CA · 16579 days ago · 13 km deep · 63 km away
  60. 1.57km ESE of Niland, CA · 16579 days ago · 3 km deep · 98 km away

The first 60 of 182.

Before

  1. 2.422km ESE of Anza, CA · 16587 days ago · 12 km deep · 1 km away
  2. 1.921km ESE of Anza, CA · 16587 days ago · 12 km deep · 1 km away
  3. 3.023km ESE of Anza, CA · 16587 days ago · 14 km deep · 1 km away
  4. 1.54km SE of Niland, CA · 16587 days ago · 8 km deep · 96 km away
  5. 1.66km ESE of Niland, CA · 16587 days ago · 4 km deep · 98 km away
  6. 2.822km ESE of Anza, CA · 16587 days ago · 14 km deep · 1 km away
  7. 1.58km ESE of Niland, CA · 16587 days ago · 4 km deep · 99 km away
  8. 1.76km ESE of Niland, CA · 16587 days ago · 5 km deep · 97 km away
  9. 1.625km ENE of Pine Valley, CA · 16587 days ago · 6 km deep · 64 km away
  10. 2.15km ESE of Niland, CA · 16587 days ago · 11 km deep · 96 km away
  11. 1.87km W of Westmorland, CA · 16587 days ago · 11 km deep · 86 km away
  12. 1.67km W of Westmorland, CA · 16587 days ago · 10 km deep · 86 km away
  13. 1.87km SE of Niland, CA · 16587 days ago · 7 km deep · 98 km away
  14. 1.621km ESE of Anza, CA · 16587 days ago · 9 km deep · 3 km away
  15. 1.57km ESE of Niland, CA · 16587 days ago · 3 km deep · 99 km away
  16. 2.15km ESE of Niland, CA · 16587 days ago · 9 km deep · 96 km away
  17. 2.26km ESE of Niland, CA · 16587 days ago · 4 km deep · 97 km away
  18. 2.612km WSW of Niland, CA · 16587 days ago · 14 km deep · 82 km away
  19. 1.67km ESE of Niland, CA · 16587 days ago · 5 km deep · 99 km away
  20. 1.86km ESE of Niland, CA · 16587 days ago · 5 km deep · 97 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci515379. Read Fri, Oct 2, 2026, 1:37 PM UTC.