California earthquakes

M1.8 earthquake 22km ESE of Anza, California

A magnitude 1.8 earthquake struck 22km ESE of Anza, California on Mon, Apr 28, 2003, 8:34 PM PDT (03:34 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M3.9 16km ENE of Coachella, 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.

Open the live map with earthquakes

The earthquake

Magnitude
1.8 (ML, local (Richter)), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
2003-04-29 03:34:47 UTC
Depth
11.6 km (7.2 mi), shallow
Epicenter
33.477° N, 116.452° 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, 0.7 km in depth
Magnitude uncertainty
±0.23
Depth from
From location
Station coverage gap
48°
Stations used
36

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 197 in the 60 days after this one and 199 in the 30 days before it.

After

  1. 1.69km SSW of Idyllwild, CA · 8560 days ago · 15 km deep · 33 km away
  2. 1.626km NNW of Twentynine Palms, California · 8560 days ago · 1 km deep · 100 km away
  3. 1.614km NE of Indio, CA · 8560 days ago · 5 km deep · 49 km away
  4. 2.09km WSW of Niland, CA · 8558 days ago · 4 km deep · 84 km away
  5. 1.623km ESE of Anza, CA · 8557 days ago · 12 km deep · 0 km away
  6. 1.68km S of Borrego Springs, CA · 8557 days ago · 12 km deep · 34 km away
  7. 1.711km NE of Big Bear City, CA · 8557 days ago · 2 km deep · 99 km away
  8. 1.612km SSW of Big Bear Lake, CA · 8557 days ago · 7 km deep · 89 km away
  9. 1.512km SSW of Big Bear Lake, CA · 8556 days ago · 10 km deep · 90 km away
  10. 2.83km WSW of Calimesa, CA · 8556 days ago · 15 km deep · 80 km away
  11. 2.228km SSW of Ocotillo Wells, CA · 8556 days ago · 8 km deep · 66 km away
  12. 1.827km SSW of Ocotillo Wells, CA · 8556 days ago · 9 km deep · 66 km away
  13. 1.89km ENE of Ocotillo Wells, CA · 8555 days ago · 6 km deep · 50 km away
  14. 2.418km W of Imperial, CA · 8555 days ago · 16 km deep · 95 km away
  15. 1.522km ESE of Anza, CA · 8555 days ago · 7 km deep · 0 km away
  16. 1.62km S of Loma Linda, California · 8555 days ago · 17 km deep · 97 km away
  17. 1.54km S of Idyllwild, CA · 8555 days ago · 17 km deep · 36 km away
  18. 1.710km SSW of Idyllwild, CA · 8555 days ago · 13 km deep · 36 km away
  19. 1.87km SW of Niland, CA · 8554 days ago · 2 km deep · 88 km away
  20. 1.611km N of Borrego Springs, CA · 8554 days ago · 12 km deep · 16 km away
  21. 1.79km ESE of Big Bear City, CA · 8554 days ago · 7 km deep · 88 km away
  22. 1.927km ENE of Pine Valley, CA · 8554 days ago · 7 km deep · 69 km away
  23. 1.727km N of Yucca Valley, CA · 8554 days ago · 5 km deep · 98 km away
  24. 1.827km N of Yucca Valley, CA · 8554 days ago · 6 km deep · 98 km away
  25. 1.627km N of Yucca Valley, California · 8554 days ago · 6 km deep · 98 km away
  26. 1.727km N of Yucca Valley, CA · 8554 days ago · 4 km deep · 98 km away
  27. 1.727km N of Yucca Valley, CA · 8554 days ago · 6 km deep · 98 km away
  28. 1.624km N of Yucca Valley, California · 8554 days ago · 7 km deep · 95 km away
  29. 1.627km N of Yucca Valley, California · 8554 days ago · 3 km deep · 98 km away
  30. 1.727km N of Yucca Valley, CA · 8554 days ago · 7 km deep · 97 km away
  31. 2.08km NNE of Banning, CA · 8554 days ago · 18 km deep · 66 km away
  32. 1.85km NNW of Big Bear City, CA · 8554 days ago · 5 km deep · 100 km away
  33. 2.36km SE of Lake Henshaw, CA · 8553 days ago · 10 km deep · 40 km away
  34. 2.111km NE of Ocotillo Wells, CA · 8553 days ago · 9 km deep · 49 km away
  35. 1.717km N of Yucca Valley, California · 8553 days ago · 6 km deep · 88 km away
  36. 1.512km E of Julian, CA · 8553 days ago · 4 km deep · 45 km away
  37. 2.419km ESE of Anza, CA · 8553 days ago · 11 km deep · 5 km away
  38. 1.912km NW of Pine Valley, CA · 8552 days ago · 12 km deep · 67 km away
  39. 1.612km S of Joshua Tree, CA · 8552 days ago · 5 km deep · 62 km away
  40. 1.98km NNE of Ocotillo Wells, CA · 8552 days ago · 3 km deep · 44 km away
  41. 1.71km SSW of Loma Linda, CA · 8552 days ago · 17 km deep · 98 km away
  42. 2.011km E of Yucaipa, CA · 8551 days ago · 11 km deep · 75 km away
  43. 1.65km WNW of Calimesa, CA · 8551 days ago · 15 km deep · 84 km away
  44. 1.85km SSE of Idyllwild, CA · 8550 days ago · 17 km deep · 34 km away
  45. 1.79km SE of Valle Vista, CA · 8550 days ago · 17 km deep · 41 km away
  46. 2.69km SSE of Running Springs, CA · 8550 days ago · 7 km deep · 93 km away
  47. 1.617km SW of Oasis, CA · 8549 days ago · 8 km deep · 26 km away
  48. 1.712km NNW of Bombay Beach, CA · 8549 days ago · 11 km deep · 62 km away
  49. 1.812km SSE of Anza, CA · 8549 days ago · 9 km deep · 15 km away
  50. 1.54km N of Big Bear City, California · 8548 days ago · 4 km deep · 98 km away
  51. 1.614km S of Big Bear Lake, CA · 8548 days ago · 4 km deep · 83 km away
  52. 1.83km ENE of Nuevo, CA · 8548 days ago · 14 km deep · 72 km away
  53. 1.624km N of Yucca Valley, California · 8547 days ago · 2 km deep · 95 km away
  54. 1.814km N of Ocotillo Wells, CA · 8546 days ago · 8 km deep · 38 km away
  55. 1.717km W of Imperial, CA · 8546 days ago · 10 km deep · 96 km away
  56. 1.711km NE of Ocotillo Wells, CA · 8546 days ago · 2 km deep · 46 km away
  57. 1.615km E of Julian, CA · 8546 days ago · 15 km deep · 47 km away
  58. 1.65km SE of Loma Linda, CA · 8546 days ago · 17 km deep · 93 km away
  59. 1.62km E of Loma Linda, CA · 8546 days ago · 13 km deep · 97 km away
  60. 1.58km E of Cabazon, CA · 8546 days ago · 15 km deep · 54 km away

The first 60 of 197.

Before

  1. 1.87km ESE of Ocotillo Wells, CA · 8560 days ago · 7 km deep · 54 km away
  2. 3.36km ESE of Ocotillo Wells, CA · 8560 days ago · 13 km deep · 53 km away
  3. 1.72km SW of Loma Linda, CA · 8561 days ago · 17 km deep · 98 km away
  4. 1.89km NNE of Banning, CA · 8561 days ago · 12 km deep · 68 km away
  5. 1.75km N of Big Bear City, CA · 8562 days ago · 4 km deep · 99 km away
  6. 1.97km SSW of Anza, CA · 8562 days ago · 13 km deep · 24 km away
  7. 1.720km W of Westmorland, CA · 8562 days ago · 6 km deep · 78 km away
  8. 1.63km SSE of Redlands, CA · 8562 days ago · 14 km deep · 90 km away
  9. 1.612km WNW of Calipatria, CA · 8562 days ago · 5 km deep · 83 km away
  10. 2.513km WNW of Calipatria, CA · 8562 days ago · 4 km deep · 83 km away
  11. 2.313km WNW of Calipatria, California · 8562 days ago · 2 km deep · 83 km away
  12. 2.312km WNW of Calipatria, CA · 8562 days ago · 4 km deep · 83 km away
  13. 1.711km SW of Niland, California · 8562 days ago · 8 km deep · 84 km away
  14. 1.714km NE of Indio, CA · 8562 days ago · 3 km deep · 49 km away
  15. 1.65km N of Big Bear City, CA · 8563 days ago · 4 km deep · 99 km away
  16. 1.514km NE of Indio, California · 8563 days ago · 5 km deep · 49 km away
  17. 1.624km NE of Pine Valley, CA · 8563 days ago · 9 km deep · 57 km away
  18. 1.78km SW of Calimesa, CA · 8563 days ago · 17 km deep · 81 km away
  19. 1.515km SSE of Anza, CA · 8563 days ago · 7 km deep · 17 km away
  20. 1.69km NE of Desert Hot Springs, CA · 8563 days ago · 9 km deep · 60 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci9518214. Read Mon, Oct 5, 2026, 7:25 AM UTC.