California earthquakes

M1.6 earthquake 20 km WSW of Three Rocks, California

A magnitude 1.6 earthquake struck 20 km WSW of Three Rocks, California on Thu, Aug 2, 1984, 10:27 AM PDT (17:27 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.5 11 km SSE of Huron, California. This one was a foreshock.

Coalinga 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 (md), micro
Local time
UTC
1984-08-02 17:27:06 UTC
Depth
3.4 km (2.1 mi), shallow
Epicenter
36.409° N, 120.588° 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, 1.0 km in depth
Magnitude uncertainty
±0.19
Depth from
From location
Station coverage gap
145°
Stations used
8

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 85 in the 30 days before it.

After

  1. 2.124 km NE of Soledad, California · 15399 days ago · 2 km deep · 50 km away
  2. 1.711 km NNW of Coalinga, California · 15398 days ago · 7 km deep · 26 km away
  3. 1.73 km NW of Avenal, California · 15397 days ago · 13 km deep · 57 km away
  4. 2.44 km W of Hollister, California · 15397 days ago · 0 km deep · 91 km away
  5. 1.824 km ENE of Soledad, California · 15397 days ago · 8 km deep · 46 km away
  6. 1.722 km NNE of Soledad, California · 15397 days ago · 4 km deep · 58 km away
  7. 2.02 km SSW of San Juan Bautista, California · 15397 days ago · 5 km deep · 97 km away
  8. 2.010 km ENE of Coalinga, California · 15396 days ago · 11 km deep · 41 km away
  9. 2.321 km NW of Parkfield, California · 15396 days ago · 4 km deep · 41 km away
  10. 2.28 km NNE of Coalinga, California · 15396 days ago · 10 km deep · 34 km away
  11. 2.422 km NE of Soledad, California · 15396 days ago · 4 km deep · 57 km away
  12. 2.615 km SSE of Tres Pinos, California · 15395 days ago · 3 km deep · 67 km away
  13. 1.823 km NW of San Simeon, California · 15395 days ago · 0 km deep · 96 km away
  14. 1.618 km S of Three Rocks, California · 15395 days ago · 10 km deep · 20 km away
  15. 2.823 km NE of San Ardo, California · 15394 days ago · 7 km deep · 28 km away
  16. 1.617 km NNW of Coalinga, California · 15394 days ago · 7 km deep · 20 km away
  17. 2.413 km S of Tres Pinos, California · 15393 days ago · 3 km deep · 70 km away
  18. 1.89 km NNE of Coalinga, California · 15393 days ago · 9 km deep · 33 km away
  19. 1.721 km NE of Soledad, California · 15393 days ago · 2 km deep · 57 km away
  20. 1.711 km NNW of Avenal, California · 15393 days ago · 3 km deep · 50 km away
  21. 1.612 km N of Coalinga, California · 15392 days ago · 9 km deep · 25 km away
  22. 2.112 km NW of Parkfield, California · 15392 days ago · 11 km deep · 48 km away
  23. 1.718 km SSE of Tres Pinos, California · 15391 days ago · 10 km deep · 64 km away
  24. 2.121 km NE of Soledad, California · 15391 days ago · 2 km deep · 53 km away
  25. 1.736 km W of Lockwood, California · 15391 days ago · 4 km deep · 98 km away
  26. 1.613 km WNW of Templeton, California · 15391 days ago · 5 km deep · 95 km away
  27. 1.810 km NNW of Huron, California · 15391 days ago · 0 km deep · 41 km away
  28. 1.78 km ENE of San Ardo, California · 15390 days ago · 6 km deep · 46 km away
  29. 1.624 km NE of Greenfield, California · 15390 days ago · 5 km deep · 41 km away
  30. 1.916 km NNW of Coalinga, California · 15390 days ago · 4 km deep · 20 km away
  31. 2.222 km ENE of Soledad, California · 15390 days ago · 9 km deep · 48 km away
  32. 1.64 km S of Oak Shores, California · 15389 days ago · 6 km deep · 83 km away
  33. 1.712 km NW of Parkfield, California · 15389 days ago · 10 km deep · 48 km away
  34. 2.013 km SW of Soledad, California · 15389 days ago · 9 km deep · 76 km away
  35. 1.818 km ESE of Kettleman City, California · 15388 days ago · 14 km deep · 89 km away
  36. 1.59 km ESE of Coalinga, California · 15388 days ago · 4 km deep · 44 km away
  37. 2.59 km E of Coalinga, California · 15388 days ago · 9 km deep · 42 km away
  38. 2.112 km N of Coalinga, California · 15387 days ago · 8 km deep · 26 km away
  39. 1.625 km ENE of Greenfield, California · 15387 days ago · -1 km deep · 37 km away
  40. 1.98 km N of Cambria, California · 15386 days ago · 3 km deep · 96 km away
  41. 1.811 km NNE of Coalinga, California · 15386 days ago · 8 km deep · 30 km away
  42. 2.122 km NE of Soledad, California · 15386 days ago · 4 km deep · 57 km away
  43. 1.925 km ENE of Greenfield, California · 15386 days ago · 0 km deep · 38 km away
  44. 3.212 km SW of Huron, California · 15386 days ago · 9 km deep · 47 km away
  45. 1.625 km ENE of Greenfield, California · 15385 days ago · -1 km deep · 37 km away
  46. 1.510 km SW of Huron, California · 15385 days ago · 5 km deep · 48 km away
  47. 3.111 km SW of Huron, California · 15385 days ago · 9 km deep · 48 km away
  48. 2.512 km SW of Huron, California · 15385 days ago · 5 km deep · 47 km away
  49. 2.20 km WNW of Hollister, California · 15385 days ago · 8 km deep · 89 km away
  50. 2.615 km N of Coalinga, California · 15385 days ago · 9 km deep · 24 km away
  51. 1.923 km ENE of San Lucas, California · 15384 days ago · 5 km deep · 27 km away
  52. 2.023 km SE of Tres Pinos, California · 15384 days ago · 8 km deep · 57 km away
  53. 1.72 km WSW of Riverdale, California · 15384 days ago · 9 km deep · 63 km away
  54. 2.115 km NNW of Coalinga, California · 15384 days ago · 10 km deep · 21 km away
  55. 2.015 km NNE of Coalinga, California · 15383 days ago · 8 km deep · 28 km away
  56. 1.725 km SE of Tres Pinos, California · 15383 days ago · 7 km deep · 54 km away
  57. 1.826 km NW of San Simeon, California · 15383 days ago · 9 km deep · 95 km away
  58. 1.618 km NW of Parkfield, California · 15382 days ago · 1 km deep · 44 km away
  59. 1.59 km NW of Parkfield, California · 15382 days ago · 3 km deep · 51 km away
  60. 2.223 km ENE of San Lucas, California · 15381 days ago · 5 km deep · 27 km away

The first 60 of 197.

Before

  1. 1.537 km SSW of South Dos Palos, California · 15399 days ago · 7 km deep · 37 km away
  2. 1.78 km SSE of Three Rocks, California · 15400 days ago · 7 km deep · 21 km away
  3. 1.91 km NE of Cantua Creek, California · 15400 days ago · 1 km deep · 28 km away
  4. 3.06 km SSE of Three Rocks, California · 15400 days ago · 9 km deep · 20 km away
  5. 2.66 km SSE of Three Rocks, California · 15400 days ago · 8 km deep · 20 km away
  6. 1.928 km NE of San Lucas, California · 15400 days ago · 9 km deep · 21 km away
  7. 1.614 km WNW of Huron, California · 15400 days ago · 8 km deep · 36 km away
  8. 1.621 km SE of Tres Pinos, California · 15400 days ago · 8 km deep · 57 km away
  9. 2.714 km NE of Coalinga, California · 15400 days ago · 9 km deep · 35 km away
  10. 1.811 km S of Home Garden, California · 15401 days ago · 12 km deep · 88 km away
  11. 2.022 km SE of Tres Pinos, CA · 15401 days ago · 9 km deep · 56 km away
  12. 1.916 km NW of Parkfield, California · 15401 days ago · -1 km deep · 46 km away
  13. 2.18 km N of Coalinga, California · 15401 days ago · 10 km deep · 28 km away
  14. 1.823 km ESE of Tres Pinos, California · 15401 days ago · 18 km deep · 55 km away
  15. 2.621 km SE of Tres Pinos, California · 15401 days ago · 11 km deep · 56 km away
  16. 2.024 km ENE of Soledad, California · 15401 days ago · 3 km deep · 44 km away
  17. 1.515 km NNW of Coalinga, California · 15403 days ago · 5 km deep · 23 km away
  18. 1.623 km NE of King City, California · 15403 days ago · 3 km deep · 30 km away
  19. 2.023 km ENE of Soledad, California · 15403 days ago · 5 km deep · 45 km away
  20. 1.74 km WSW of Huron, California · 15404 days ago · 0 km deep · 47 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc24809. Read Wed, Sep 30, 2026, 6:00 PM UTC.