California earthquakes

M1.6 earthquake 5 km S of Three Rocks, California

A magnitude 1.6 earthquake struck 5 km S of Three Rocks, California on Thu, Apr 18, 1985, 6:58 PM PST (02:58 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M2.1 11 km NNW of Whitley Gardens, 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
1.6 (md), micro
Local time
UTC
1985-04-19 02:58:04 UTC
Depth
3.1 km (1.9 mi), shallow
Epicenter
36.457° N, 120.385° 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 1.5 km horizontally, 3.4 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
236°, poorly surrounded by stations
Stations used
4

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 123 in the 60 days after this one and 76 in the 30 days before it.

After

  1. 2.111 km NNW of Whitley Gardens, California · 15131 days ago · 12 km deep · 81 km away
  2. 2.59 km S of Tres Pinos, California · 15130 days ago · 2 km deep · 89 km away
  3. 2.39 km S of Tres Pinos, California · 15130 days ago · 3 km deep · 90 km away
  4. 1.826 km NE of Greenfield, California · 15130 days ago · 6 km deep · 56 km away
  5. 1.516 km SSE of Tres Pinos, California · 15130 days ago · 5 km deep · 82 km away
  6. 2.010 km S of Tres Pinos, California · 15130 days ago · 3 km deep · 88 km away
  7. 1.84 km N of Coalinga, California · 15129 days ago · 12 km deep · 31 km away
  8. 2.318 km SSE of Tres Pinos, California · 15129 days ago · 6 km deep · 80 km away
  9. 1.817 km NW of Parkfield, California · 15128 days ago · 5 km deep · 52 km away
  10. 2.923 km ENE of Soledad, California · 15128 days ago · 4 km deep · 63 km away
  11. 2.010 km NNW of Coalinga, California · 15127 days ago · 8 km deep · 26 km away
  12. 1.523 km ENE of Soledad, California · 15127 days ago · 4 km deep · 63 km away
  13. 1.615 km NW of Coalinga, California · 15126 days ago · 6 km deep · 23 km away
  14. 2.226 km NE of Soledad, California · 15126 days ago · 8 km deep · 66 km away
  15. 2.010 km NE of Coalinga, California · 15126 days ago · 8 km deep · 31 km away
  16. 1.921 km NE of Soledad, California · 15126 days ago · 2 km deep · 69 km away
  17. 1.612 km N of Coalinga, California · 15126 days ago · 10 km deep · 23 km away
  18. 1.622 km NE of Soledad, California · 15126 days ago · 6 km deep · 66 km away
  19. 1.710 km NE of Coalinga, California · 15125 days ago · 8 km deep · 29 km away
  20. 1.68 km S of San Ardo, California · 15124 days ago · 8 km deep · 74 km away
  21. 2.11 km SSW of Coalinga, California · 15124 days ago · 11 km deep · 36 km away
  22. 3.024 km ENE of Greenfield, California · 15124 days ago · 8 km deep · 56 km away
  23. 1.512 km NNE of Hollister, California · 15124 days ago · 8 km deep · 100 km away
  24. 2.323 km ENE of Soledad, California · 15124 days ago · 2 km deep · 64 km away
  25. 2.413 km S of Tres Pinos, California · 15124 days ago · 4 km deep · 85 km away
  26. 2.221 km NE of Soledad, California · 15124 days ago · 4 km deep · 72 km away
  27. 3.012 km S of Tres Pinos, California · 15123 days ago · 4 km deep · 85 km away
  28. 1.624 km NE of Greenfield, California · 15123 days ago · 6 km deep · 58 km away
  29. 1.624 km ENE of Soledad, California · 15123 days ago · 3 km deep · 61 km away
  30. 2.412 km S of Tres Pinos, California · 15123 days ago · 5 km deep · 86 km away
  31. 1.713 km S of Tres Pinos, California · 15123 days ago · 4 km deep · 85 km away
  32. 1.65 km SE of Tres Pinos, California · 15123 days ago · 8 km deep · 86 km away
  33. 2.05 km SW of Ridgemark, California · 15122 days ago · 7 km deep · 98 km away
  34. 1.624 km NE of Greenfield, California · 15121 days ago · 7 km deep · 58 km away
  35. 2.210 km SSW of Huron, California · 15121 days ago · 2 km deep · 42 km away
  36. 1.68 km NNW of Coalinga, California · 15121 days ago · 7 km deep · 28 km away
  37. 1.630 km NE of Soledad, California · 15121 days ago · 7 km deep · 60 km away
  38. 2.815 km SSE of Tres Pinos, California · 15120 days ago · 5 km deep · 83 km away
  39. 2.08 km S of Huron, California · 15118 days ago · 5 km deep · 44 km away
  40. 1.58 km ENE of Coalinga, California · 15118 days ago · 11 km deep · 34 km away
  41. 2.615 km SSE of Tres Pinos, California · 15117 days ago · 5 km deep · 82 km away
  42. 3.015 km SSE of Tres Pinos, California · 15117 days ago · 5 km deep · 82 km away
  43. 2.112 km S of Tres Pinos, California · 15117 days ago · 5 km deep · 86 km away
  44. 2.015 km SSE of Tres Pinos, California · 15117 days ago · 5 km deep · 82 km away
  45. 1.624 km NE of Greenfield, California · 15116 days ago · 5 km deep · 60 km away
  46. 2.220 km NW of Parkfield, California · 15116 days ago · 4 km deep · 51 km away
  47. 1.916 km NNW of Coalinga, California · 15116 days ago · 6 km deep · 21 km away
  48. 1.921 km NE of Soledad, California · 15115 days ago · 4 km deep · 68 km away
  49. 2.521 km NE of Soledad, California · 15115 days ago · 8 km deep · 68 km away
  50. 1.713 km NNE of Coalinga, California · 15115 days ago · 9 km deep · 23 km away
  51. 2.18 km NE of Coalinga, California · 15114 days ago · 7 km deep · 32 km away
  52. 1.614 km NNE of Shandon, California · 15114 days ago · 4 km deep · 76 km away
  53. 1.616 km SSE of Tres Pinos, California · 15114 days ago · 6 km deep · 82 km away
  54. 1.921 km NW of Parkfield, California · 15114 days ago · 5 km deep · 50 km away
  55. 2.510 km N of Coalinga, California · 15113 days ago · 9 km deep · 25 km away
  56. 2.0Central California · 15112 days ago · 7 km deep · 42 km away
  57. 2.15 km ENE of Coalinga, California · 15111 days ago · 12 km deep · 34 km away
  58. 1.723 km ENE of Soledad, California · 15111 days ago · 6 km deep · 62 km away
  59. 1.79 km SSW of Tres Pinos, California · 15111 days ago · 3 km deep · 91 km away
  60. 2.510 km NW of Bradley, California · 15111 days ago · 5 km deep · 76 km away

The first 60 of 123.

Before

  1. 1.612 km E of Coalinga, California · 15132 days ago · 9 km deep · 39 km away
  2. 2.012 km E of Coalinga, California · 15132 days ago · 8 km deep · 40 km away
  3. 1.610 km E of Coalinga, California · 15132 days ago · 0 km deep · 38 km away
  4. 1.722 km NE of San Lucas, California · 15134 days ago · 6 km deep · 46 km away
  5. 1.99 km SSW of Ridgemark, California · 15134 days ago · 7 km deep · 96 km away
  6. 1.713 km NNE of Coalinga, California · 15135 days ago · 9 km deep · 24 km away
  7. 2.5Central California · 15135 days ago · 9 km deep · 23 km away
  8. 2.29 km NNE of Coalinga, California · 15135 days ago · 9 km deep · 28 km away
  9. 2.126 km NE of Soledad, California · 15135 days ago · 8 km deep · 63 km away
  10. 1.98 km NNW of Avenal, California · 15136 days ago · 5 km deep · 47 km away
  11. 1.927 km E of Tres Pinos, California · 15136 days ago · 4 km deep · 66 km away
  12. 1.98 km NNW of Avenal, California · 15136 days ago · 0 km deep · 46 km away
  13. 1.79 km E of Coalinga, California · 15136 days ago · 10 km deep · 36 km away
  14. 2.224 km NE of King City, California · 15137 days ago · 8 km deep · 49 km away
  15. 1.78 km E of Huron, California · 15137 days ago · 25 km deep · 45 km away
  16. 1.724 km NE of Greenfield, California · 15137 days ago · 6 km deep · 60 km away
  17. 2.324 km NE of King City, California · 15137 days ago · 7 km deep · 49 km away
  18. 3.123 km ENE of San Lucas, California · 15138 days ago · 6 km deep · 44 km away
  19. 1.610 km WSW of Huron, California · 15139 days ago · 9 km deep · 37 km away
  20. 1.64 km W of South Dos Palos, California · 15139 days ago · 10 km deep · 63 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc47571. Read Tue, Sep 22, 2026, 7:44 PM UTC.