California earthquakes

M1.8 earthquake 11km NW of Anza, CA

A magnitude 1.8 earthquake struck 11km NW of Anza, CA on Fri, Jun 23, 1978, 9:34 PM PDT (04:34 UTC), 14 km (8 mi) below the surface.

A larger quake followed: M3.9 6km N of Fontana, 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
1978-06-24 04:34:41 UTC
Depth
13.6 km (8.5 mi), shallow
Epicenter
33.628° 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, 0.7 km in depth
Depth from
From location
Station coverage gap
93°
Stations used
24

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 153 in the 60 days after this one and 122 in the 30 days before it.

After

  1. 1.64km S of Banning, CA · 17635 days ago · 14 km deep · 31 km away
  2. 1.815km N of Borrego Springs, CA · 17635 days ago · 4 km deep · 44 km away
  3. 1.74km W of Lake Henshaw, CA · 17635 days ago · 6 km deep · 43 km away
  4. 3.11km SW of Loma Linda, CA · 17634 days ago · 16 km deep · 66 km away
  5. 1.512km NW of Warner Springs, CA · 17634 days ago · 8 km deep · 30 km away
  6. 1.913km NNW of Borrego Springs, CA · 17633 days ago · 11 km deep · 43 km away
  7. 2.010km WSW of Idyllwild, CA · 17633 days ago · 16 km deep · 9 km away
  8. 1.67km ESE of Valle Vista, CA · 17633 days ago · 17 km deep · 12 km away
  9. 1.97km ENE of Morongo Valley, CA · 17633 days ago · 12 km deep · 55 km away
  10. 1.56km WSW of Idyllwild, CA · 17633 days ago · 17 km deep · 10 km away
  11. 1.66km SSE of Loma Linda, CA · 17632 days ago · 17 km deep · 60 km away
  12. 2.018km N of Joshua Tree, CA · 17632 days ago · 5 km deep · 83 km away
  13. 1.86km S of Idyllwild, CA · 17632 days ago · 16 km deep · 8 km away
  14. 2.07km ESE of Morongo Valley, CA · 17632 days ago · 1 km deep · 49 km away
  15. 1.55km SE of Redlands, CA · 17632 days ago · 9 km deep · 57 km away
  16. 1.616km NW of Morongo Valley, CA · 17631 days ago · 12 km deep · 58 km away
  17. 1.65km NW of Joshua Tree, CA · 17631 days ago · 8 km deep · 70 km away
  18. 1.518km SSE of Big Bear Lake, CA · 17631 days ago · 6 km deep · 52 km away
  19. 1.621km N of Joshua Tree, CA · 17631 days ago · 3 km deep · 86 km away
  20. 1.611km NE of Cabazon, CA · 17631 days ago · 17 km deep · 41 km away
  21. 1.66km SSW of Idyllwild, CA · 17630 days ago · 12 km deep · 7 km away
  22. 1.84km SE of Loma Linda, CA · 17630 days ago · 15 km deep · 62 km away
  23. 1.61km SW of Cabazon, CA · 17630 days ago · 15 km deep · 32 km away
  24. 1.56km N of Big Bear City, CA · 17629 days ago · 7 km deep · 76 km away
  25. 1.612km ENE of Cabazon, CA · 17629 days ago · 11 km deep · 38 km away
  26. 1.510km NE of Ocotillo Wells, CA · 17629 days ago · 6 km deep · 79 km away
  27. 2.04km NW of Joshua Tree, CA · 17628 days ago · 2 km deep · 70 km away
  28. 2.14km W of Mira Loma, CA · 17628 days ago · 7 km deep · 86 km away
  29. 1.621km ESE of Julian, CA · 17628 days ago · 15 km deep · 74 km away
  30. 1.514km N of Warner Springs, CA · 17628 days ago · 12 km deep · 27 km away
  31. 1.724km ENE of Thermal, CA · 17628 days ago · 8 km deep · 79 km away
  32. 2.53km S of Nuevo, CA · 17627 days ago · 13 km deep · 40 km away
  33. 2.324km ENE of Pine Valley, CA · 17627 days ago · 4 km deep · 87 km away
  34. 1.55km N of Big Bear City, CA · 17627 days ago · 7 km deep · 76 km away
  35. 2.124km ENE of Pine Valley, CA · 17627 days ago · 1 km deep · 87 km away
  36. 1.61km E of Beaumont, CA · 17626 days ago · 13 km deep · 38 km away
  37. 1.615km SSE of Ocotillo Wells, CA · 17626 days ago · 17 km deep · 94 km away
  38. 3.014km SE of Anza, CA · 17626 days ago · 6 km deep · 25 km away
  39. 2.013km SE of Anza, CA · 17626 days ago · 9 km deep · 24 km away
  40. 2.56km NNW of Fontana, CA · 17626 days ago · 4 km deep · 88 km away
  41. 1.615km NE of Borrego Springs, CA · 17626 days ago · 10 km deep · 57 km away
  42. 1.810km NE of Indio, CA · 17625 days ago · 6 km deep · 60 km away
  43. 1.810km NE of Running Springs, CA · 17625 days ago · 7 km deep · 75 km away
  44. 1.616km N of Joshua Tree, CA · 17625 days ago · 3 km deep · 82 km away
  45. 1.56km SW of Idyllwild, CA · 17624 days ago · 16 km deep · 7 km away
  46. 1.713km S of Salton City, CA · 17624 days ago · 6 km deep · 90 km away
  47. 1.811km E of Desert Hot Springs, CA · 17624 days ago · 8 km deep · 49 km away
  48. 3.65km SE of Garnet, CA · 17624 days ago · 2 km deep · 36 km away
  49. 2.04km SE of Garnet, CA · 17624 days ago · 0 km deep · 36 km away
  50. 1.711km NNW of Cabazon, CA · 17624 days ago · 16 km deep · 43 km away
  51. 1.69km S of Cabazon, CA · 17623 days ago · 14 km deep · 24 km away
  52. 1.78km NE of Desert Hot Springs, CA · 17623 days ago · 2 km deep · 51 km away
  53. 1.510km ESE of Anza, CA · 17623 days ago · 10 km deep · 20 km away
  54. 1.612km ESE of Anza, CA · 17622 days ago · 16 km deep · 22 km away
  55. 1.58km SSW of Idyllwild, CA · 17622 days ago · 16 km deep · 5 km away
  56. 1.72km WNW of Julian, CA · 17622 days ago · 14 km deep · 62 km away
  57. 1.58km SSW of Idyllwild, CA · 17622 days ago · 16 km deep · 5 km away
  58. 2.122km ESE of Anza, CA · 17621 days ago · 14 km deep · 33 km away
  59. 1.56km S of Redlands, CA · 17621 days ago · 14 km deep · 58 km away
  60. 1.921km SW of La Quinta, CA · 17621 days ago · 9 km deep · 32 km away

The first 60 of 153.

Before

  1. 1.516km NNE of Borrego Springs, CA · 17635 days ago · 14 km deep · 51 km away
  2. 2.56km SW of Salton City, CA · 17635 days ago · 13 km deep · 81 km away
  3. 1.821km N of Joshua Tree, CA · 17636 days ago · 2 km deep · 85 km away
  4. 1.717km NNW of Borrego Springs, CA · 17636 days ago · 11 km deep · 39 km away
  5. 1.54km WSW of Devore, CA · 17636 days ago · 15 km deep · 91 km away
  6. 1.620km NNW of Borrego Springs, CA · 17636 days ago · 12 km deep · 35 km away
  7. 1.69km NNW of Big Bear Lake, CA · 17637 days ago · 4 km deep · 79 km away
  8. 2.04km NW of Joshua Tree, CA · 17637 days ago · 2 km deep · 70 km away
  9. 2.24km NNW of Lake Henshaw, CA · 17637 days ago · 12 km deep · 39 km away
  10. 1.65km N of Beaumont, CA · 17637 days ago · 15 km deep · 44 km away
  11. 1.64km NE of Idyllwild, CA · 17638 days ago · 13 km deep · 17 km away
  12. 1.515km N of Borrego Springs, CA · 17638 days ago · 15 km deep · 45 km away
  13. 2.52km N of San Jacinto, CA · 17638 days ago · 13 km deep · 27 km away
  14. 1.520km ESE of Anza, CA · 17638 days ago · 8 km deep · 30 km away
  15. 2.09km SW of Idyllwild, CA · 17638 days ago · 6 km deep · 6 km away
  16. 1.59km SW of Idyllwild, CA · 17638 days ago · 15 km deep · 8 km away
  17. 1.52km NNE of Ocotillo Wells, CA · 17639 days ago · 6 km deep · 79 km away
  18. 1.818km NNW of Borrego Springs, CA · 17639 days ago · 12 km deep · 38 km away
  19. 2.04km E of Running Springs, CA · 17639 days ago · 2 km deep · 71 km away
  20. 1.68km N of Running Springs, CA · 17640 days ago · 7 km deep · 79 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3340193. Read Mon, Oct 5, 2026, 7:54 AM UTC.