California earthquakes

M1.8 earthquake 11km W of Anza, CA

A magnitude 1.8 earthquake struck 11km W of Anza, CA on Sun, Mar 31, 1985, 11:46 AM PST (19:46 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M2.3 23km NNW of Yucca Valley, 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
Local time
UTC
1985-03-31 19:46:59 UTC
Depth
2.7 km (1.7 mi), shallow
Epicenter
33.538° N, 116.794° 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.

Depth from
From location
Station coverage gap
107°
Stations used
0

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 179 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 2.323km NNW of Yucca Valley, CA · 15112 days ago · 1 km deep · 90 km away
  2. 2.121km ESE of Julian, CA · 15112 days ago · 6 km deep · 71 km away
  3. 1.730km ENE of Big Bear City, CA · 15112 days ago · 1 km deep · 98 km away
  4. 2.013km ESE of North Shore, CA · 15111 days ago · 3 km deep · 91 km away
  5. 1.610km NE of Borrego Springs, CA · 15111 days ago · 10 km deep · 50 km away
  6. 1.518km NNW of Borrego Springs, CA · 15111 days ago · 11 km deep · 36 km away
  7. 1.87km SSW of Idyllwild, CA · 15111 days ago · 14 km deep · 16 km away
  8. 2.14km NNE of Fontana, CA · 15110 days ago · 4 km deep · 89 km away
  9. 2.65km ESE of Yucaipa, CA · 15110 days ago · 16 km deep · 56 km away
  10. 1.95km NNW of Banning, CA · 15110 days ago · 16 km deep · 49 km away
  11. 1.86km SSE of Banning, CA · 15110 days ago · 14 km deep · 38 km away
  12. 2.02km NNW of Beaumont, CA · 15110 days ago · 12 km deep · 48 km away
  13. 2.018km NNW of Ocotillo Wells, CA · 15110 days ago · 14 km deep · 63 km away
  14. 3.03km SSE of Loma Linda, CA · 15110 days ago · 15 km deep · 68 km away
  15. 2.00km E of Palomar Observatory, CA · 15109 days ago · 8 km deep · 21 km away
  16. 1.93km NNE of Colton, CA · 15109 days ago · 10 km deep · 78 km away
  17. 1.63km ESE of Muscoy, CA · 15109 days ago · 5 km deep · 83 km away
  18. 2.222km ESE of Julian, CA · 15109 days ago · 5 km deep · 68 km away
  19. 1.610km WSW of Anza, CA · 15109 days ago · 5 km deep · 1 km away
  20. 1.510km WSW of Anza, CA · 15109 days ago · 4 km deep · 2 km away
  21. 1.523km SSE of Twentynine Palms, CA · 15109 days ago · 2 km deep · 87 km away
  22. 1.810km E of Yucaipa, CA · 15109 days ago · 13 km deep · 57 km away
  23. 1.83km E of Big Bear Lake, CA · 15109 days ago · 13 km deep · 79 km away
  24. 1.815km ESE of Anza, CA · 15108 days ago · 15 km deep · 25 km away
  25. 1.723km S of Twentynine Palms, CA · 15108 days ago · 2 km deep · 83 km away
  26. 1.71km N of Loma Linda, CA · 15108 days ago · 13 km deep · 72 km away
  27. 2.18km SW of Morongo Valley, CA · 15108 days ago · 11 km deep · 53 km away
  28. 3.119km SE of Anza, CA · 15108 days ago · 10 km deep · 28 km away
  29. 1.59km NNW of Morongo Valley, CA · 15108 days ago · 8 km deep · 67 km away
  30. 1.616km N of Borrego Springs, CA · 15108 days ago · 10 km deep · 41 km away
  31. 1.515km N of Borrego Springs, CA · 15108 days ago · 11 km deep · 41 km away
  32. 2.09km NNW of Morongo Valley, CA · 15108 days ago · 4 km deep · 67 km away
  33. 1.911km W of Anza, CA · 15108 days ago · 0 km deep · 2 km away
  34. 1.610km S of Idyllwild, CA · 15108 days ago · 13 km deep · 14 km away
  35. 1.711km NE of Aguanga, CA · 15107 days ago · 2 km deep · 2 km away
  36. 1.620km ESE of Julian, CA · 15107 days ago · 2 km deep · 69 km away
  37. 1.711km SE of Hesperia, CA · 15107 days ago · 3 km deep · 99 km away
  38. 1.821km E of Julian, CA · 15107 days ago · 2 km deep · 67 km away
  39. 1.521km E of Julian, CA · 15107 days ago · 3 km deep · 67 km away
  40. 1.76km ESE of Yucaipa, CA · 15107 days ago · 16 km deep · 56 km away
  41. 1.812km SE of Anza, CA · 15107 days ago · 11 km deep · 20 km away
  42. 2.15km WNW of Lake Elsinore, CA · 15107 days ago · 6 km deep · 56 km away
  43. 1.84km NW of San Jacinto, CA · 15107 days ago · 12 km deep · 35 km away
  44. 1.922km SSW of La Quinta, CA · 15107 days ago · 8 km deep · 37 km away
  45. 1.511km W of Anza, CA · 15107 days ago · -1 km deep · 2 km away
  46. 3.09km NE of Borrego Springs, CA · 15107 days ago · 10 km deep · 53 km away
  47. 2.312km NNE of Cabazon, CA · 15106 days ago · 10 km deep · 53 km away
  48. 3.711km NNE of Aguanga, CA · 15106 days ago · 0 km deep · 2 km away
  49. 1.711km WSW of Anza, CA · 15106 days ago · 1 km deep · 0 km away
  50. 1.612km W of Anza, CA · 15106 days ago · 4 km deep · 1 km away
  51. 1.77km E of Temecula, CA · 15106 days ago · 5 km deep · 27 km away
  52. 2.012km W of Anza, CA · 15106 days ago · 0 km deep · 1 km away
  53. 1.911km WSW of Anza, CA · 15106 days ago · 0 km deep · 1 km away
  54. 2.211km NNE of Aguanga, CA · 15106 days ago · 0 km deep · 1 km away
  55. 2.011km WSW of Anza, CA · 15106 days ago · 2 km deep · 1 km away
  56. 1.911km W of Anza, CA · 15106 days ago · 4 km deep · 1 km away
  57. 1.811km W of Anza, CA · 15106 days ago · -1 km deep · 0 km away
  58. 1.910km NNW of Morongo Valley, CA · 15106 days ago · 0 km deep · 69 km away
  59. 2.210km ENE of Desert Hot Springs, CA · 15106 days ago · 3 km deep · 62 km away
  60. 1.66km W of Yucca Valley, CA · 15106 days ago · 5 km deep · 69 km away

The first 60 of 179.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci63539. Read Tue, Sep 22, 2026, 4:15 PM UTC.