California earthquakes

M1.6 earthquake 13km SE of Anza, CA

A magnitude 1.6 earthquake struck 13km SE of Anza, CA on Fri, Sep 20, 2002, 2:33 AM PDT (09:33 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.3 9km N of Ocotillo Wells, 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
1.6 (ML, local (Richter)), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
2002-09-20 09:33:15 UTC
Depth
4.8 km (3.0 mi), shallow
Epicenter
33.481° N, 116.560° 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, 22.8 km in depth
Magnitude uncertainty
±0.26
Depth from
From location
Station coverage gap
29°
Stations used
34

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 184 in the 60 days after this one and 110 in the 30 days before it.

After

  1. 2.221km ENE of Big Bear City, CA · 8780 days ago · -1 km deep · 95 km away
  2. 2.121km ENE of Big Bear City, CA · 8780 days ago · 1 km deep · 95 km away
  3. 1.519km ESE of Anza, CA · 8779 days ago · 13 km deep · 6 km away
  4. 1.73km ENE of Julian, CA · 8779 days ago · 10 km deep · 43 km away
  5. 4.39km N of Ocotillo Wells, CA · 8779 days ago · 14 km deep · 50 km away · felt by 256
  6. 1.610km NNE of Ocotillo Wells, CA · 8779 days ago · 10 km deep · 50 km away
  7. 2.111km N of Ocotillo Wells, CA · 8779 days ago · 13 km deep · 50 km away
  8. 1.918km WNW of Ocotillo, CA · 8779 days ago · 5 km deep · 84 km away
  9. 2.511km N of Ocotillo Wells, CA · 8779 days ago · 13 km deep · 50 km away
  10. 1.66km NNE of Moreno Valley, California · 8779 days ago · 17 km deep · 81 km away
  11. 1.511km N of Ocotillo Wells, CA · 8779 days ago · 8 km deep · 49 km away
  12. 1.65km E of Calimesa, CA · 8779 days ago · 16 km deep · 69 km away
  13. 1.69km NNW of Idyllwild, CA · 8779 days ago · 16 km deep · 42 km away
  14. 1.712km NNW of Cabazon, CA · 8779 days ago · 21 km deep · 65 km away
  15. 1.617km SSW of Oasis, CA · 8778 days ago · 6 km deep · 40 km away
  16. 1.69km SE of Bombay Beach, California · 8778 days ago · 11 km deep · 86 km away
  17. 1.510km N of Ocotillo Wells, CA · 8778 days ago · 10 km deep · 50 km away
  18. 2.210km N of Cabazon, CA · 8778 days ago · 21 km deep · 61 km away
  19. 1.69km SSW of Idyllwild, CA · 8777 days ago · 18 km deep · 27 km away
  20. 2.512km N of Ocotillo Wells, CA · 8777 days ago · 8 km deep · 47 km away
  21. 2.111km N of Borrego Springs, CA · 8776 days ago · 14 km deep · 23 km away
  22. 1.66km SE of Cabazon, CA · 8776 days ago · 15 km deep · 48 km away
  23. 2.516km ENE of Coachella, CA · 8776 days ago · 9 km deep · 58 km away
  24. 1.616km S of Joshua Tree, CA · 8775 days ago · 8 km deep · 61 km away
  25. 1.522km N of Yucca Valley, CA · 8775 days ago · 2 km deep · 93 km away
  26. 1.64km ESE of Loma Linda, California · 8775 days ago · 16 km deep · 87 km away
  27. 1.912km WSW of Morongo Valley, CA · 8774 days ago · 14 km deep · 61 km away
  28. 2.26km NNE of Moreno Valley, CA · 8774 days ago · 16 km deep · 82 km away
  29. 1.514km ENE of Borrego Springs, CA · 8774 days ago · 8 km deep · 37 km away
  30. 1.61km E of Cabazon, CA · 8774 days ago · 13 km deep · 53 km away
  31. 1.621km N of Yucca Valley, CA · 8774 days ago · 9 km deep · 92 km away
  32. 1.91km WSW of Cabazon, CA · 8773 days ago · 16 km deep · 53 km away
  33. 1.712km S of Salton City, CA · 8773 days ago · 8 km deep · 65 km away
  34. 1.816km ESE of Anza, CA · 8773 days ago · 14 km deep · 6 km away
  35. 1.63km E of Valle Vista, California · 8772 days ago · 16 km deep · 40 km away
  36. 2.28km WNW of Aguanga, CA · 8772 days ago · 14 km deep · 36 km away
  37. 2.66km SE of Big Bear Lake, CA · 8772 days ago · 4 km deep · 85 km away
  38. 1.516km ENE of Coachella, CA · 8772 days ago · 10 km deep · 58 km away
  39. 1.611km NE of Cabazon, CA · 8771 days ago · 13 km deep · 57 km away
  40. 1.812km WNW of Calipatria, California · 8770 days ago · 0 km deep · 93 km away
  41. 1.97km S of Banning, CA · 8770 days ago · 17 km deep · 51 km away
  42. 1.612km SSW of Borrego Springs, CA · 8770 days ago · 14 km deep · 37 km away
  43. 1.817km ESE of Julian, CA · 8770 days ago · 11 km deep · 53 km away
  44. 1.63km E of Rialto, CA · 8769 days ago · 18 km deep · 100 km away
  45. 2.413km E of Desert Hot Springs, CA · 8769 days ago · 7 km deep · 55 km away
  46. 1.78km ENE of Cabazon, CA · 8769 days ago · 9 km deep · 53 km away
  47. 1.85km SE of Grand Terrace, CA · 8769 days ago · 17 km deep · 88 km away
  48. 2.616km ENE of Coachella, CA · 8769 days ago · 8 km deep · 58 km away
  49. 1.611km N of Borrego Springs, CA · 8769 days ago · 13 km deep · 24 km away
  50. 1.527km N of Yucca Valley, CA · 8768 days ago · 7 km deep · 97 km away
  51. 1.623km NE of Pine Valley, CA · 8768 days ago · 9 km deep · 63 km away
  52. 1.78km NNE of Borrego Springs, CA · 8768 days ago · 13 km deep · 27 km away
  53. 1.612km NW of Anza, CA · 8768 days ago · 15 km deep · 25 km away
  54. 1.74km NNW of Rancho Santa Fe, CA · 8767 days ago · 5 km deep · 77 km away
  55. 2.48km W of Idyllwild, CA · 8766 days ago · 6 km deep · 37 km away
  56. 1.517km ESE of Anza, CA · 8766 days ago · 10 km deep · 4 km away
  57. 1.718km WSW of Westmorland, CA · 8766 days ago · 4 km deep · 88 km away
  58. 1.96km NNW of Big Bear City, CA · 8766 days ago · 2 km deep · 97 km away
  59. 1.612km S of Salton City, CA · 8765 days ago · 7 km deep · 64 km away
  60. 1.67km SSE of Loma Linda, California · 8765 days ago · 16 km deep · 85 km away

The first 60 of 184.

Before

  1. 2.110km WNW of Calipatria, CA · 8781 days ago · 6 km deep · 94 km away
  2. 1.811km WNW of Calipatria, CA · 8781 days ago · 6 km deep · 94 km away
  3. 1.811km NNE of Ocotillo Wells, California · 8781 days ago · 2 km deep · 54 km away
  4. 1.812km WNW of Calipatria, CA · 8781 days ago · 5 km deep · 93 km away
  5. 1.810km WNW of Calipatria, California · 8781 days ago · 6 km deep · 95 km away
  6. 1.54km SSE of Banning, California · 8781 days ago · 17 km deep · 54 km away
  7. 1.912km WNW of Calipatria, CA · 8781 days ago · 5 km deep · 93 km away
  8. 2.812km WNW of Calipatria, CA · 8781 days ago · 4 km deep · 93 km away
  9. 2.112km WNW of Calipatria, CA · 8781 days ago · 4 km deep · 93 km away
  10. 1.68km S of Yucca Valley, CA · 8782 days ago · 9 km deep · 63 km away
  11. 1.76km SSW of Big Bear City, CA · 8782 days ago · 2 km deep · 85 km away
  12. 2.211km NE of Ocotillo Wells, CA · 8783 days ago · 16 km deep · 58 km away
  13. 1.79km SW of Niland, California · 8783 days ago · 2 km deep · 96 km away
  14. 2.110km SW of Niland, CA · 8783 days ago · 2 km deep · 95 km away
  15. 1.78km WNW of Palomar Observatory, CA · 8783 days ago · 13 km deep · 38 km away
  16. 1.810km WSW of Anza, CA · 8783 days ago · 17 km deep · 20 km away
  17. 2.811km NE of Aguanga, CA · 8783 days ago · 15 km deep · 21 km away
  18. 3.710km NE of Aguanga, CA · 8783 days ago · 15 km deep · 20 km away · felt by 216
  19. 1.66km SE of Big Bear Lake, CA · 8784 days ago · 4 km deep · 85 km away
  20. 2.29km S of Joshua Tree, CA · 8785 days ago · 10 km deep · 68 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci9826357. Read Sun, Oct 4, 2026, 11:31 PM UTC.