California earthquakes

M1.5 earthquake 31 km WNW of Three Rocks, California

A magnitude 1.5 earthquake struck 31 km WNW of Three Rocks, California on Fri, Jul 1, 1983, 7:50 AM PDT (14:50 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M5.4 11 km NNW of Coalinga, California. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.5 (md), micro
Local time
UTC
1983-07-01 14:50:01 UTC
Depth
4.7 km (2.9 mi), shallow
Epicenter
36.615° N, 120.716° 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 2.4 km horizontally, 22.3 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
173°
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 201 in the 60 days after this one and 199 in the 30 days before it.

After

  1. 2.013 km NE of Coalinga, California · 15797 days ago · 12 km deep · 58 km away
  2. 1.623 km NE of San Lucas, California · 15797 days ago · 7 km deep · 39 km away
  3. 1.512 km NNE of Coalinga, California · 15797 days ago · 10 km deep · 53 km away
  4. 2.311 km NE of Coalinga, California · 15797 days ago · 12 km deep · 61 km away
  5. 2.513 km NNE of Coalinga, California · 15797 days ago · 9 km deep · 53 km away
  6. 2.77 km ENE of Coalinga, California · 15797 days ago · 9 km deep · 62 km away
  7. 1.711 km NE of Coalinga, California · 15797 days ago · 0 km deep · 61 km away
  8. 1.915 km NNW of Coalinga, California · 15797 days ago · 4 km deep · 48 km away
  9. 1.912 km S of Tres Pinos, California · 15796 days ago · 3 km deep · 53 km away
  10. 3.318 km S of Cantua Creek, California · 15796 days ago · 1 km deep · 46 km away
  11. 2.210 km NE of Coalinga, California · 15796 days ago · 9 km deep · 61 km away
  12. 2.418 km S of Three Rocks, California · 15796 days ago · 2 km deep · 44 km away
  13. 1.524 km NE of Greenfield, California · 15796 days ago · 7 km deep · 33 km away
  14. 2.47 km NE of Coalinga, California · 15796 days ago · 8 km deep · 61 km away
  15. 1.68 km NNE of Coalinga, California · 15796 days ago · 8 km deep · 57 km away
  16. 1.86 km NNW of San Juan Bautista, California · 15796 days ago · 6 km deep · 81 km away
  17. 1.936 km SSW of South Dos Palos, California · 15796 days ago · 4 km deep · 15 km away
  18. 2.214 km S of Cantua Creek, California · 15796 days ago · 4 km deep · 47 km away
  19. 2.75 km S of Cantua Creek, California · 15796 days ago · 3 km deep · 41 km away
  20. 2.123 km ENE of Greenfield, California · 15796 days ago · 6 km deep · 34 km away
  21. 1.68 km WSW of Huron, California · 15795 days ago · 7 km deep · 69 km away
  22. 1.913 km NNE of Coalinga, California · 15795 days ago · 6 km deep · 55 km away
  23. 2.023 km ENE of San Lucas, California · 15795 days ago · 6 km deep · 42 km away
  24. 2.19 km SW of Huron, California · 15795 days ago · 9 km deep · 73 km away
  25. 1.813 km N of Coalinga, California · 15795 days ago · 8 km deep · 51 km away
  26. 1.617 km NNW of Coalinga, California · 15795 days ago · 8 km deep · 45 km away
  27. 2.125 km ESE of Big Sur, California · 15795 days ago · 6 km deep · 92 km away
  28. 1.69 km NE of San Martin, California · 15795 days ago · 6 km deep · 94 km away
  29. 1.78 km ENE of Coalinga, California · 15795 days ago · 5 km deep · 63 km away
  30. 1.629 km SW of Three Rocks, California · 15795 days ago · 11 km deep · 33 km away
  31. 2.712 km SW of Huron, California · 15795 days ago · 8 km deep · 70 km away
  32. 2.223 km NE of Greenfield, California · 15795 days ago · 5 km deep · 34 km away
  33. 1.711 km SW of Huron, California · 15795 days ago · 7 km deep · 70 km away
  34. 2.22 km SW of San Juan Bautista, California · 15794 days ago · 7 km deep · 79 km away
  35. 1.610 km WSW of Huron, California · 15794 days ago · 10 km deep · 69 km away
  36. 1.87 km NE of Coalinga, California · 15794 days ago · 8 km deep · 62 km away
  37. 2.814 km N of Coalinga, California · 15794 days ago · 9 km deep · 50 km away
  38. 3.419 km S of Cantua Creek, California · 15794 days ago · 2 km deep · 46 km away
  39. 2.513 km NNW of Coalinga, California · 15794 days ago · 12 km deep · 49 km away
  40. 2.011 km E of Coalinga, California · 15794 days ago · 7 km deep · 69 km away
  41. 2.219 km S of Cantua Creek, California · 15794 days ago · 0 km deep · 45 km away
  42. 1.724 km NE of Greenfield, California · 15794 days ago · 5 km deep · 33 km away
  43. 1.724 km ESE of Big Sur, California · 15793 days ago · 6 km deep · 92 km away
  44. 3.418 km S of Cantua Creek, California · 15793 days ago · 5 km deep · 46 km away
  45. 2.36 km NE of Coalinga, California · 15793 days ago · 8 km deep · 62 km away
  46. 2.318 km S of Cantua Creek, California · 15793 days ago · 3 km deep · 46 km away
  47. 1.87 km N of Coalinga, California · 15793 days ago · 7 km deep · 56 km away
  48. 3.011 km E of Coalinga, California · 15793 days ago · 6 km deep · 69 km away
  49. 1.911 km SW of Huron, California · 15792 days ago · 9 km deep · 70 km away
  50. 2.011 km N of Coalinga, California · 15792 days ago · 9 km deep · 52 km away
  51. 2.910 km N of Coalinga, California · 15792 days ago · 9 km deep · 53 km away
  52. 3.213 km NNE of Coalinga, California · 15792 days ago · 9 km deep · 53 km away
  53. 2.116 km S of Cantua Creek, California · 15792 days ago · 8 km deep · 46 km away
  54. 2.211 km NNE of Coalinga, California · 15792 days ago · 6 km deep · 58 km away
  55. 1.65 km SSW of Gilroy, California · 15792 days ago · 6 km deep · 87 km away
  56. 3.114 km NNW of Coalinga, California · 15792 days ago · 4 km deep · 47 km away
  57. 3.811 km NE of Coalinga, California · 15792 days ago · 12 km deep · 59 km away
  58. 2.311 km NE of Coalinga, California · 15792 days ago · 10 km deep · 60 km away
  59. 1.812 km NE of Coalinga, California · 15792 days ago · 7 km deep · 59 km away
  60. 1.78 km S of Huron, California · 15792 days ago · 8 km deep · 77 km away

The first 60 of 201.

Before

  1. 1.67 km NNE of Coalinga, California · 15797 days ago · 8 km deep · 58 km away
  2. 1.67 km NNW of Coalinga, California · 15797 days ago · 7 km deep · 55 km away
  3. 1.911 km WSW of Huron, California · 15798 days ago · 7 km deep · 69 km away
  4. 3.17 km N of Coalinga, California · 15798 days ago · 10 km deep · 55 km away
  5. 2.011 km NNE of Coalinga, California · 15798 days ago · 6 km deep · 56 km away
  6. 1.636 km SSW of South Dos Palos, California · 15798 days ago · 6 km deep · 14 km away
  7. 2.115 km NW of Parkfield, California · 15798 days ago · 4 km deep · 70 km away
  8. 1.915 km NW of Parkfield, California · 15798 days ago · 3 km deep · 70 km away
  9. 3.311 km N of Coalinga, California · 15798 days ago · 10 km deep · 51 km away
  10. 1.619 km WSW of Three Rocks, California · 15798 days ago · 0 km deep · 21 km away
  11. 2.020 km N of Coalinga, California · 15798 days ago · 3 km deep · 48 km away
  12. 1.521 km NW of Parkfield, California · 15799 days ago · 1 km deep · 65 km away
  13. 1.723 km ENE of Greenfield, California · 15799 days ago · 5 km deep · 33 km away
  14. 2.78 km ENE of Coalinga, California · 15799 days ago · 9 km deep · 64 km away
  15. 1.610 km NE of Coalinga, California · 15799 days ago · 11 km deep · 59 km away
  16. 2.123 km NNE of San Lucas, California · 15799 days ago · 5 km deep · 37 km away
  17. 2.616 km N of Coalinga, California · 15799 days ago · 8 km deep · 47 km away
  18. 1.611 km NE of Coalinga, California · 15799 days ago · 5 km deep · 59 km away
  19. 1.811 km NW of Coalinga, California · 15799 days ago · 0 km deep · 51 km away
  20. 2.019 km N of Coalinga, California · 15799 days ago · 10 km deep · 45 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1097869. Read Wed, Sep 30, 2026, 11:28 PM UTC.