California earthquakes

M1.8 earthquake 7km NNE of Anza, CA

A magnitude 1.8 earthquake struck 7km NNE of Anza, CA on Tue, Nov 1, 1983, 3:22 AM PST (11:22 UTC), 12 km (8 mi) below the surface.

A larger quake followed: M3.6 2km NNW of Muscoy, 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
1983-11-01 11:22:02 UTC
Depth
12.1 km (7.5 mi), shallow
Epicenter
33.619° N, 116.658° 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 0.4 km horizontally, 1.4 km in depth
Depth from
From location
Station coverage gap
66°
Stations used
17

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 187 in the 30 days before it.

After

  1. 1.61km SE of Loma Linda, CA · 15677 days ago · 17 km deep · 72 km away
  2. 2.110km NE of Aguanga, CA · 15677 days ago · 7 km deep · 17 km away
  3. 1.916km NNW of Borrego Springs, CA · 15677 days ago · 11 km deep · 34 km away
  4. 1.65km SSW of Calimesa, CA · 15676 days ago · 13 km deep · 54 km away
  5. 1.923km ESE of Anza, CA · 15675 days ago · 13 km deep · 25 km away
  6. 1.64km SSW of Fontana, CA · 15675 days ago · 4 km deep · 91 km away
  7. 1.94km SW of Fontana, CA · 15675 days ago · 5 km deep · 91 km away
  8. 2.233km SE of Twentynine Palms, CA · 15675 days ago · 2 km deep · 83 km away
  9. 1.832km SE of Twentynine Palms, CA · 15675 days ago · 3 km deep · 83 km away
  10. 2.517km W of Camp Pendleton South, CA · 15675 days ago · 5 km deep · 95 km away
  11. 1.74km NNW of San Jacinto, CA · 15675 days ago · 11 km deep · 36 km away
  12. 1.82km SSW of San Bernardino, CA · 15675 days ago · 6 km deep · 80 km away
  13. 1.919km ESE of Anza, CA · 15675 days ago · 12 km deep · 23 km away
  14. 2.911km NNE of Lake Arrowhead, CA · 15674 days ago · 1 km deep · 91 km away
  15. 1.811km NNE of Lake Arrowhead, CA · 15674 days ago · 4 km deep · 91 km away
  16. 1.818km ESE of Julian, CA · 15674 days ago · 7 km deep · 68 km away
  17. 2.118km ESE of Julian, CA · 15674 days ago · 3 km deep · 69 km away
  18. 1.512km NNE of Lake Arrowhead, CA · 15674 days ago · 7 km deep · 91 km away
  19. 1.614km S of Anza, CA · 15674 days ago · 13 km deep · 21 km away
  20. 2.011km NNE of Lake Arrowhead, CA · 15674 days ago · 6 km deep · 91 km away
  21. 1.79km SE of Valle Vista, CA · 15674 days ago · 16 km deep · 17 km away
  22. 1.713km N of Borrego Springs, CA · 15674 days ago · 12 km deep · 37 km away
  23. 1.713km N of Borrego Springs, CA · 15674 days ago · 11 km deep · 37 km away
  24. 2.513km NNW of Borrego Springs, CA · 15674 days ago · 11 km deep · 36 km away
  25. 1.513km N of Borrego Springs, CA · 15674 days ago · 14 km deep · 37 km away
  26. 2.410km NNE of Cabazon, CA · 15674 days ago · 17 km deep · 43 km away
  27. 1.86km NE of Banning, CA · 15673 days ago · 15 km deep · 41 km away
  28. 1.911km SSW of Ocotillo Wells, CA · 15673 days ago · 5 km deep · 75 km away
  29. 1.510km NE of Cabazon, CA · 15673 days ago · 15 km deep · 42 km away
  30. 2.15km S of Redlands, CA · 15672 days ago · 5 km deep · 65 km away
  31. 1.86km S of Redlands, CA · 15672 days ago · 13 km deep · 65 km away
  32. 1.75km S of Redlands, CA · 15672 days ago · 4 km deep · 65 km away
  33. 1.66km S of Redlands, CA · 15672 days ago · 8 km deep · 65 km away
  34. 1.89km NNE of Borrego Springs, CA · 15672 days ago · 11 km deep · 43 km away
  35. 1.82km SSE of Muscoy, CA · 15672 days ago · 9 km deep · 85 km away
  36. 1.71km SSE of Muscoy, CA · 15671 days ago · 5 km deep · 86 km away
  37. 1.63km S of Idyllwild, CA · 15671 days ago · 17 km deep · 12 km away
  38. 1.712km WSW of Morongo Valley, CA · 15671 days ago · 14 km deep · 44 km away
  39. 1.810km W of Anza, CA · 15671 days ago · 3 km deep · 15 km away
  40. 2.43km ESE of Bombay Beach, CA · 15671 days ago · 5 km deep · 94 km away
  41. 1.52km NE of Colton, CA · 15671 days ago · 16 km deep · 78 km away
  42. 2.512km NNE of Lake Arrowhead, CA · 15671 days ago · 3 km deep · 91 km away
  43. 1.69km S of Bombay Beach, CA · 15671 days ago · 0 km deep · 95 km away
  44. 1.78km ENE of Nuevo, CA · 15670 days ago · 16 km deep · 43 km away
  45. 1.610km NE of Coachella, CA · 15670 days ago · 1 km deep · 54 km away
  46. 2.210km SW of Morongo Valley, CA · 15670 days ago · 5 km deep · 41 km away
  47. 1.820km ESE of Anza, CA · 15670 days ago · 15 km deep · 22 km away
  48. 2.64km ESE of Loma Linda, CA · 15670 days ago · 8 km deep · 70 km away
  49. 2.114km ENE of Borrego Springs, CA · 15669 days ago · 6 km deep · 53 km away
  50. 1.926km SW of Ocotillo Wells, CA · 15669 days ago · 6 km deep · 82 km away
  51. 2.04km SE of Loma Linda, CA · 15669 days ago · 16 km deep · 69 km away
  52. 1.97km NNE of Green Acres, CA · 15669 days ago · 6 km deep · 41 km away
  53. 1.52km ENE of Muscoy, CA · 15669 days ago · 5 km deep · 86 km away
  54. 2.04km ESE of Loma Linda, CA · 15669 days ago · 13 km deep · 70 km away
  55. 1.64km SE of Loma Linda, CA · 15669 days ago · 12 km deep · 70 km away
  56. 2.56km WSW of Idyllwild, CA · 15669 days ago · 14 km deep · 15 km away
  57. 1.79km NNE of Pala, CA · 15669 days ago · 12 km deep · 41 km away
  58. 1.56km SE of Bombay Beach, CA · 15669 days ago · 7 km deep · 96 km away
  59. 1.86km SE of Bombay Beach, CA · 15669 days ago · 11 km deep · 96 km away
  60. 1.86km WSW of Idyllwild, CA · 15668 days ago · 15 km deep · 15 km away

The first 60 of 182.

Before

  1. 1.910km ENE of Desert Hot Springs, CA · 15677 days ago · 9 km deep · 49 km away
  2. 2.030km SE of Twentynine Palms, CA · 15678 days ago · 5 km deep · 82 km away
  3. 1.730km SE of Twentynine Palms, CA · 15678 days ago · 4 km deep · 81 km away
  4. 1.83km SSW of Idyllwild, CA · 15678 days ago · 16 km deep · 13 km away
  5. 1.920km SSW of Ocotillo Wells, CA · 15679 days ago · 5 km deep · 80 km away
  6. 1.913km S of Twentynine Palms, CA · 15679 days ago · 11 km deep · 69 km away
  7. 1.86km NW of San Jacinto, CA · 15679 days ago · 13 km deep · 39 km away
  8. 1.930km SE of Twentynine Palms, CA · 15679 days ago · 5 km deep · 82 km away
  9. 1.63km SSW of Idyllwild, CA · 15679 days ago · 16 km deep · 13 km away
  10. 2.012km SE of Anza, CA · 15679 days ago · 9 km deep · 17 km away
  11. 2.731km SE of Twentynine Palms, CA · 15679 days ago · 4 km deep · 82 km away
  12. 2.531km SE of Twentynine Palms, CA · 15679 days ago · 4 km deep · 81 km away
  13. 2.131km SE of Twentynine Palms, CA · 15679 days ago · 5 km deep · 81 km away
  14. 2.03km SE of Big Bear City, CA · 15679 days ago · 10 km deep · 71 km away
  15. 2.410km W of Anza, CA · 15680 days ago · 3 km deep · 14 km away
  16. 1.719km ESE of Anza, CA · 15680 days ago · 14 km deep · 20 km away
  17. 1.94km SSW of Fontana, CA · 15680 days ago · 4 km deep · 90 km away
  18. 2.46km SSW of Morongo Valley, CA · 15680 days ago · 10 km deep · 42 km away
  19. 2.021km NNW of Borrego Springs, CA · 15680 days ago · 12 km deep · 28 km away
  20. 2.420km NNW of Borrego Springs, CA · 15680 days ago · 12 km deep · 28 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci23740. Read Sat, Oct 3, 2026, 4:30 PM UTC.