California earthquakes

M1.6 earthquake 6 km ENE of Coalinga, California

A magnitude 1.6 earthquake struck 6 km ENE of Coalinga, California on Fri, Oct 21, 1977, 11:59 PM PDT (06:59 UTC), 12 km (8 mi) below the surface.

A larger quake followed: M2.0 3 km WNW of San Ardo, 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
1977-10-22 06:59:26 UTC
Depth
12.1 km (7.5 mi), shallow
Epicenter
36.161° N, 120.288° 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 0.9 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
285°, poorly surrounded by stations
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: 137 in the 60 days after this one and 58 in the 30 days before it.

After

  1. 2.03 km WNW of San Ardo, California · 17866 days ago · 11 km deep · 61 km away
  2. 1.727 km ENE of Soledad, California · 17862 days ago · 9 km deep · 83 km away
  3. 3.321 km NE of Soledad, California · 17861 days ago · 5 km deep · 92 km away
  4. 1.73 km SE of San Ardo, California · 17861 days ago · 13 km deep · 57 km away
  5. 1.719 km SSE of Tres Pinos, California · 17860 days ago · 10 km deep · 100 km away
  6. 1.622 km NE of San Lucas, California · 17860 days ago · 5 km deep · 54 km away
  7. 2.123 km ENE of Soledad, California · 17859 days ago · 3 km deep · 80 km away
  8. 2.521 km NW of Parkfield, California · 17859 days ago · 4 km deep · 31 km away
  9. 2.321 km NE of Soledad, California · 17859 days ago · 2 km deep · 87 km away
  10. 1.917 km N of San Simeon, California · 17858 days ago · 11 km deep · 92 km away
  11. 1.923 km ENE of Soledad, California · 17858 days ago · 5 km deep · 80 km away
  12. 1.625 km ENE of Greenfield, California · 17857 days ago · 5 km deep · 68 km away
  13. 1.518 km NW of Parkfield, California · 17857 days ago · 3 km deep · 31 km away
  14. 1.724 km ENE of Soledad, California · 17857 days ago · 4 km deep · 79 km away
  15. 1.623 km NE of Greenfield, California · 17856 days ago · 5 km deep · 76 km away
  16. 2.122 km NW of Coalinga, California · 17856 days ago · 8 km deep · 26 km away
  17. 3.317 km SW of Lockwood, California · 17856 days ago · 11 km deep · 92 km away
  18. 1.524 km NW of Parkfield, California · 17855 days ago · 4 km deep · 32 km away
  19. 2.924 km ENE of Greenfield, California · 17855 days ago · 7 km deep · 71 km away
  20. 1.626 km ENE of Greenfield, California · 17855 days ago · 7 km deep · 69 km away
  21. 3.025 km ENE of Greenfield, California · 17855 days ago · 7 km deep · 70 km away
  22. 2.025 km ENE of Greenfield, California · 17855 days ago · 6 km deep · 70 km away
  23. 1.825 km ENE of Greenfield, California · 17855 days ago · 7 km deep · 70 km away
  24. 1.825 km ENE of Greenfield, California · 17855 days ago · 6 km deep · 70 km away
  25. 1.625 km ENE of Greenfield, California · 17855 days ago · 6 km deep · 70 km away
  26. 2.425 km ENE of Greenfield, California · 17855 days ago · 7 km deep · 70 km away
  27. 1.523 km ENE of Soledad, California · 17855 days ago · 5 km deep · 81 km away
  28. 2.232 km WSW of Three Rocks, California · 17854 days ago · 11 km deep · 43 km away
  29. 2.622 km NE of Soledad, California · 17854 days ago · 6 km deep · 93 km away
  30. 1.521 km NE of Soledad, California · 17854 days ago · 6 km deep · 93 km away
  31. 3.322 km NE of Soledad, California · 17854 days ago · 6 km deep · 94 km away
  32. 3.421 km NE of Soledad, California · 17854 days ago · 6 km deep · 93 km away
  33. 3.418 km NNE of Soledad, California · 17854 days ago · 7 km deep · 94 km away
  34. 1.921 km NE of Soledad, California · 17854 days ago · 6 km deep · 94 km away
  35. 1.621 km NE of Soledad, California · 17854 days ago · 6 km deep · 91 km away
  36. 1.621 km NE of Soledad, California · 17854 days ago · 6 km deep · 93 km away
  37. 2.421 km NE of Soledad, California · 17854 days ago · 6 km deep · 92 km away
  38. 3.221 km NE of Soledad, California · 17854 days ago · 7 km deep · 93 km away
  39. 2.021 km NE of Soledad, California · 17854 days ago · 5 km deep · 92 km away
  40. 2.522 km NE of Soledad, California · 17854 days ago · 6 km deep · 93 km away
  41. 1.821 km NE of Soledad, California · 17854 days ago · 6 km deep · 92 km away
  42. 2.321 km NE of Soledad, California · 17854 days ago · 5 km deep · 92 km away
  43. 1.521 km NE of Soledad, California · 17854 days ago · 6 km deep · 91 km away
  44. 2.025 km ENE of Greenfield, California · 17854 days ago · 6 km deep · 70 km away
  45. 2.221 km NE of Soledad, California · 17854 days ago · 3 km deep · 90 km away
  46. 1.721 km NE of Soledad, California · 17854 days ago · 5 km deep · 91 km away
  47. 2.021 km NE of Soledad, California · 17854 days ago · 6 km deep · 91 km away
  48. 1.625 km ENE of Greenfield, California · 17852 days ago · 6 km deep · 70 km away
  49. 2.022 km NNE of Soledad, California · 17852 days ago · 2 km deep · 96 km away
  50. 1.720 km ESE of Tres Pinos, California · 17852 days ago · 0 km deep · 96 km away
  51. 2.321 km NE of Soledad, California · 17852 days ago · 5 km deep · 92 km away
  52. 2.021 km NE of Soledad, California · 17852 days ago · 5 km deep · 92 km away
  53. 2.025 km E of Tres Pinos, California · 17851 days ago · 0 km deep · 96 km away
  54. 2.419 km NW of Parkfield, California · 17851 days ago · 5 km deep · 30 km away
  55. 2.36 km NW of Parkfield, California · 17849 days ago · 12 km deep · 30 km away
  56. 1.823 km ENE of Soledad, California · 17849 days ago · 6 km deep · 80 km away
  57. 2.321 km NE of Soledad, California · 17847 days ago · 6 km deep · 89 km away
  58. 2.725 km ENE of Greenfield, California · 17847 days ago · 7 km deep · 70 km away
  59. 2.37 km WSW of Coalinga, California · 17846 days ago · 7 km deep · 14 km away
  60. 1.525 km ENE of Greenfield, California · 17845 days ago · -1 km deep · 72 km away

The first 60 of 137.

Before

  1. 1.99 km SSE of Parkfield, California · 17868 days ago · 5 km deep · 38 km away
  2. 1.629 km WNW of Coalinga, California · 17868 days ago · 9 km deep · 35 km away
  3. 1.624 km NE of Greenfield, California · 17868 days ago · 6 km deep · 77 km away
  4. 1.616 km NW of Parkfield, California · 17868 days ago · 3 km deep · 30 km away
  5. 1.816 km NW of Parkfield, California · 17868 days ago · 4 km deep · 30 km away
  6. 1.623 km ENE of King City, California · 17868 days ago · 8 km deep · 57 km away
  7. 2.125 km NE of Greenfield, California · 17869 days ago · 1 km deep · 75 km away
  8. 2.424 km ENE of Soledad, California · 17869 days ago · 3 km deep · 79 km away
  9. 1.839 km SSW of South Dos Palos, California · 17870 days ago · 3 km deep · 77 km away
  10. 2.122 km NE of Soledad, California · 17870 days ago · 3 km deep · 92 km away
  11. 2.422 km NNE of Soledad, California · 17871 days ago · 8 km deep · 96 km away
  12. 2.121 km NNE of Soledad, California · 17871 days ago · 8 km deep · 96 km away
  13. 3.522 km NNE of Soledad, California · 17871 days ago · 9 km deep · 96 km away
  14. 1.721 km NNE of Soledad, California · 17872 days ago · 7 km deep · 94 km away
  15. 1.923 km NE of Greenfield, California · 17872 days ago · 6 km deep · 77 km away
  16. 1.725 km NNE of King City, California · 17873 days ago · 6 km deep · 68 km away
  17. 1.822 km SSE of Tres Pinos, California · 17873 days ago · 2 km deep · 97 km away
  18. 1.6Central California · 17873 days ago · 6 km deep · 97 km away
  19. 2.730 km NE of Soledad, California · 17873 days ago · 7 km deep · 82 km away
  20. 1.821 km NE of Soledad, California · 17873 days ago · 3 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1037372. Read Tue, Sep 22, 2026, 9:33 PM UTC.