California earthquakes

M2.1 earthquake 9km WSW of Anza, CA

A magnitude 2.1 earthquake struck 9km WSW of Anza, CA on Wed, Apr 26, 1978, 6:40 AM PST (14:40 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.4 14km NNW of Warner Springs, 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
2.1 (ML, local (Richter)), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1978-04-26 14:40:06 UTC
Depth
6.0 km (3.8 mi), shallow
Epicenter
33.515° N, 116.754° 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, 1.6 km in depth
Magnitude uncertainty
±0.46
Depth from
From location
Station coverage gap
43°
Stations used
43

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 174 in the 60 days after this one and 118 in the 30 days before it.

After

  1. 1.55km NE of Running Springs, CA · 17689 days ago · 4 km deep · 86 km away
  2. 1.84km NNE of Running Springs, CA · 17689 days ago · 3 km deep · 86 km away
  3. 1.67km WNW of Desert Hot Springs, CA · 17689 days ago · 8 km deep · 54 km away
  4. 2.33km NNE of Running Springs, CA · 17689 days ago · 4 km deep · 86 km away
  5. 1.53km ENE of Calimesa, CA · 17689 days ago · 20 km deep · 59 km away
  6. 1.78km N of Valle Vista, CA · 17689 days ago · 11 km deep · 36 km away
  7. 2.511km N of Borrego Springs, CA · 17689 days ago · 15 km deep · 38 km away
  8. 1.615km SSW of Oasis, CA · 17689 days ago · 6 km deep · 59 km away
  9. 1.84km NNE of Running Springs, CA · 17688 days ago · 3 km deep · 86 km away
  10. 1.55km SE of Ocotillo Wells, CA · 17688 days ago · 10 km deep · 76 km away
  11. 1.512km NE of Indio, CA · 17688 days ago · 6 km deep · 67 km away
  12. 1.74km NNE of Running Springs, CA · 17688 days ago · 3 km deep · 86 km away
  13. 3.38km ENE of Villa Park, CA · 17687 days ago · 9 km deep · 97 km away
  14. 3.717km NW of Yucca Valley, CA · 17687 days ago · 9 km deep · 80 km away
  15. 1.618km NW of Yucca Valley, CA · 17687 days ago · 9 km deep · 82 km away
  16. 2.018km NW of Yucca Valley, CA · 17687 days ago · 7 km deep · 81 km away
  17. 2.218km NW of Yucca Valley, CA · 17687 days ago · 8 km deep · 82 km away
  18. 2.118km NW of Yucca Valley, CA · 17687 days ago · 8 km deep · 82 km away
  19. 1.72km N of Fontana, CA · 17687 days ago · 5 km deep · 94 km away
  20. 1.68km WSW of Anza, CA · 17687 days ago · 9 km deep · 1 km away
  21. 1.618km NW of Yucca Valley, CA · 17687 days ago · 8 km deep · 82 km away
  22. 1.87km NW of Morongo Valley, CA · 17687 days ago · 9 km deep · 66 km away
  23. 1.718km NW of Yucca Valley, CA · 17687 days ago · 7 km deep · 81 km away
  24. 1.620km E of Anza, CA · 17687 days ago · 9 km deep · 27 km away
  25. 1.717km NW of Yucca Valley, CA · 17687 days ago · 8 km deep · 81 km away
  26. 2.117km NW of Yucca Valley, CA · 17687 days ago · 7 km deep · 81 km away
  27. 1.718km NW of Yucca Valley, CA · 17687 days ago · 8 km deep · 81 km away
  28. 1.74km N of Ocotillo Wells, CA · 17687 days ago · 6 km deep · 69 km away
  29. 1.513km NNW of Borrego Springs, CA · 17687 days ago · 10 km deep · 36 km away
  30. 2.030km SE of Twentynine Palms, CA · 17686 days ago · 6 km deep · 94 km away
  31. 1.818km NW of Yucca Valley, CA · 17686 days ago · 8 km deep · 82 km away
  32. 1.85km SSE of Morongo Valley, CA · 17686 days ago · 8 km deep · 57 km away
  33. 1.612km N of Cabazon, CA · 17686 days ago · 15 km deep · 56 km away
  34. 1.68km WSW of Anza, CA · 17686 days ago · 6 km deep · 1 km away
  35. 1.517km NW of Yucca Valley, CA · 17686 days ago · 8 km deep · 81 km away
  36. 1.918km SSE of Joshua Tree, CA · 17686 days ago · 0 km deep · 70 km away
  37. 1.818km SSE of Joshua Tree, CA · 17686 days ago · 0 km deep · 70 km away
  38. 1.921km ESE of Anza, CA · 17685 days ago · 13 km deep · 27 km away
  39. 1.68km SE of Running Springs, CA · 17685 days ago · 11 km deep · 76 km away
  40. 1.518km ESE of Anza, CA · 17685 days ago · 18 km deep · 25 km away
  41. 1.822km SW of Ocotillo Wells, CA · 17684 days ago · 6 km deep · 69 km away
  42. 1.911km N of Morongo Valley, CA · 17683 days ago · 5 km deep · 72 km away
  43. 2.77km N of Borrego Springs, CA · 17683 days ago · 11 km deep · 42 km away
  44. 2.47km NE of Borrego Springs, CA · 17683 days ago · 15 km deep · 46 km away
  45. 1.612km ENE of Ocotillo Wells, CA · 17683 days ago · 6 km deep · 77 km away
  46. 1.88km N of Borrego Springs, CA · 17683 days ago · 11 km deep · 41 km away
  47. 2.418km SE of Anza, CA · 17682 days ago · 15 km deep · 23 km away
  48. 1.53km E of Loma Linda, CA · 17682 days ago · 16 km deep · 74 km away
  49. 1.99km W of Garnet, CA · 17680 days ago · 15 km deep · 43 km away
  50. 1.62km ESE of Valle Vista, CA · 17679 days ago · 11 km deep · 28 km away
  51. 1.92km SSE of San Bernardino, CA · 17679 days ago · 5 km deep · 83 km away
  52. 1.618km NW of Yucca Valley, CA · 17679 days ago · 5 km deep · 82 km away
  53. 1.89km N of Cabazon, CA · 17678 days ago · 17 km deep · 54 km away
  54. 1.711km SE of Anza, CA · 17678 days ago · 11 km deep · 15 km away
  55. 1.94km ESE of Ontario, CA · 17678 days ago · 9 km deep · 96 km away
  56. 1.522km ESE of Anza, CA · 17678 days ago · 12 km deep · 28 km away
  57. 1.910km NNE of Borrego Springs, CA · 17677 days ago · 14 km deep · 42 km away
  58. 1.62km NW of Palomar Observatory, CA · 17677 days ago · 5 km deep · 20 km away
  59. 1.611km S of Chino, CA · 17677 days ago · 4 km deep · 96 km away
  60. 1.63km NNW of Palomar Observatory, CA · 17676 days ago · 5 km deep · 19 km away

The first 60 of 174.

Before

  1. 1.712km NNW of Borrego Springs, CA · 17690 days ago · 12 km deep · 36 km away
  2. 2.08km N of Fontana, CA · 17690 days ago · 9 km deep · 98 km away
  3. 3.37km NNE of Beaumont, CA · 17691 days ago · 20 km deep · 55 km away
  4. 2.023km SW of Ocotillo Wells, CA · 17692 days ago · 6 km deep · 69 km away
  5. 2.04km NNW of Beaumont, CA · 17692 days ago · 17 km deep · 55 km away
  6. 1.89km ENE of Aguanga, CA · 17692 days ago · 9 km deep · 4 km away
  7. 1.821km ENE of Coachella, CA · 17693 days ago · 6 km deep · 77 km away
  8. 1.96km NW of Cabazon, CA · 17693 days ago · 12 km deep · 50 km away
  9. 2.49km NE of Cabazon, CA · 17693 days ago · 18 km deep · 52 km away
  10. 1.823km N of Yucca Valley, CA · 17693 days ago · 5 km deep · 94 km away
  11. 1.610km ENE of Thousand Palms, CA · 17694 days ago · 3 km deep · 57 km away
  12. 2.216km NE of Thousand Palms, CA · 17695 days ago · 6 km deep · 64 km away
  13. 2.014km NE of Thermal, CA · 17695 days ago · 5 km deep · 71 km away
  14. 2.510km NNE of Ocotillo Wells, CA · 17695 days ago · 13 km deep · 70 km away
  15. 1.73km N of Palomar Observatory, CA · 17696 days ago · 10 km deep · 18 km away
  16. 2.114km NE of Thermal, CA · 17696 days ago · 6 km deep · 71 km away
  17. 1.821km ESE of Anza, CA · 17696 days ago · 13 km deep · 27 km away
  18. 2.39km NE of Cabazon, CA · 17697 days ago · 13 km deep · 51 km away
  19. 1.612km N of Cabazon, CA · 17697 days ago · 20 km deep · 57 km away
  20. 1.95km SW of Morongo Valley, CA · 17697 days ago · 11 km deep · 57 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3339072. Read Thu, Oct 1, 2026, 11:17 AM UTC.