California earthquakes

M1.8 earthquake 12 km SSE of Huron, California

A magnitude 1.8 earthquake struck 12 km SSE of Huron, California on Sat, Dec 21, 1985, 4:46 AM PST (12:46 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M1.8 39 km W of Three Rocks, California. This one was a foreshock.

Huron 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 (md), micro
Local time
UTC
1985-12-21 12:46:16 UTC
Depth
7.1 km (4.4 mi), shallow
Epicenter
36.099° N, 120.061° 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 1.0 km horizontally, 0.2 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
210°, poorly surrounded by stations
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 98 in the 60 days after this one and 64 in the 30 days before it.

After

  1. 1.839 km W of Three Rocks, California · 14885 days ago · 5 km deep · 85 km away
  2. 1.810 km NE of Coalinga, California · 14885 days ago · 9 km deep · 21 km away
  3. 2.16 km NW of Parkfield, California · 14884 days ago · 5 km deep · 42 km away
  4. 3.011 km NE of Coalinga, California · 14883 days ago · 9 km deep · 21 km away
  5. 2.724 km NE of Greenfield, California · 14882 days ago · 1 km deep · 98 km away
  6. 1.75km SSW of Corcoran, CA · 14881 days ago · 5 km deep · 43 km away
  7. 1.99 km NNW of Coalinga, California · 14881 days ago · 7 km deep · 33 km away
  8. 2.29 km SE of Creston, California · 14880 days ago · 0 km deep · 79 km away
  9. 1.623 km ENE of San Lucas, California · 14880 days ago · 8 km deep · 65 km away
  10. 1.89 km E of Coalinga, California · 14880 days ago · 10 km deep · 18 km away
  11. 1.612 km SSW of Oak Shores, California · 14878 days ago · 5 km deep · 98 km away
  12. 1.520 km WSW of Coalinga, California · 14877 days ago · 2 km deep · 46 km away
  13. 3.38km N of Simmler, CA · 14877 days ago · 9 km deep · 75 km away
  14. 2.06 km N of Coalinga, California · 14876 days ago · 9 km deep · 30 km away
  15. 1.622 km NE of San Lucas, California · 14875 days ago · 5 km deep · 76 km away
  16. 2.020km SW of Alpaugh, CA · 14875 days ago · 5 km deep · 57 km away
  17. 1.917 km NNW of Coalinga, California · 14874 days ago · 12 km deep · 40 km away
  18. 2.117 km NNW of Coalinga, California · 14874 days ago · 10 km deep · 41 km away
  19. 2.217 km NNW of Coalinga, California · 14874 days ago · 12 km deep · 40 km away
  20. 2.816 km NNW of Coalinga, California · 14873 days ago · 9 km deep · 37 km away
  21. 1.63 km WNW of Coalinga, California · 14869 days ago · 9 km deep · 31 km away
  22. 1.5Central California · 14868 days ago · 9 km deep · 29 km away
  23. 1.937 km NE of King City, California · 14867 days ago · 12 km deep · 80 km away
  24. 2.18 km S of Kettleman City, California · 14867 days ago · 9 km deep · 21 km away
  25. 1.811 km N of Coalinga, California · 14866 days ago · 8 km deep · 32 km away
  26. 1.61 km E of San Ardo, California · 14866 days ago · 10 km deep · 75 km away
  27. 1.81 km WSW of Coalinga, California · 14864 days ago · 12 km deep · 28 km away
  28. 1.624 km ENE of San Ardo, California · 14864 days ago · 3 km deep · 53 km away
  29. 1.720 km N of Coalinga, California · 14864 days ago · 11 km deep · 38 km away
  30. 1.910 km ENE of Coalinga, California · 14863 days ago · 11 km deep · 19 km away
  31. 1.710 km ENE of Coalinga, California · 14863 days ago · 11 km deep · 20 km away
  32. 1.611 km S of Huron, California · 14863 days ago · 8 km deep · 3 km away
  33. 1.65 km ENE of Avenal, California · 14863 days ago · 10 km deep · 9 km away
  34. 1.619 km E of San Ardo, California · 14862 days ago · 6 km deep · 58 km away
  35. 1.816 km NNW of Coalinga, California · 14861 days ago · 9 km deep · 37 km away
  36. 2.13 km WSW of Avenal, California · 14861 days ago · 15 km deep · 15 km away
  37. 2.727km WNW of Buttonwillow, CA · 14861 days ago · -1 km deep · 72 km away
  38. 1.711 km SW of Huron, California · 14859 days ago · 6 km deep · 11 km away
  39. 1.817 km NNW of Coalinga, California · 14859 days ago · 9 km deep · 38 km away
  40. 1.912 km W of Huron, California · 14859 days ago · 11 km deep · 18 km away
  41. 1.712 km WSW of Huron, California · 14859 days ago · 7 km deep · 17 km away
  42. 3.310 km ENE of Coalinga, California · 14858 days ago · 9 km deep · 19 km away
  43. 2.010 km ENE of Coalinga, California · 14858 days ago · 6 km deep · 19 km away
  44. 1.57 km NE of Coalinga, California · 14858 days ago · 8 km deep · 24 km away
  45. 2.29 km NNW of Avenal, California · 14858 days ago · 4 km deep · 10 km away
  46. 1.923 km NE of King City, California · 14857 days ago · 6 km deep · 86 km away
  47. 2.811 km NNE of Coalinga, California · 14857 days ago · 9 km deep · 28 km away
  48. 1.78 km NNW of Avenal, California · 14856 days ago · 11 km deep · 10 km away
  49. 1.88 km NNW of Avenal, California · 14856 days ago · 11 km deep · 10 km away
  50. 1.78 km NNW of Avenal, California · 14855 days ago · 11 km deep · 10 km away
  51. 1.511 km NNE of Coalinga, California · 14854 days ago · 8 km deep · 28 km away
  52. 2.47km SW of Tipton, CA · 14854 days ago · 5 km deep · 63 km away
  53. 1.722 km ENE of San Ardo, California · 14854 days ago · 3 km deep · 55 km away
  54. 1.711 km ENE of Coalinga, California · 14852 days ago · 10 km deep · 18 km away
  55. 1.77 km NE of Coalinga, California · 14852 days ago · 11 km deep · 22 km away
  56. 2.120 km NW of Parkfield, California · 14851 days ago · 5 km deep · 48 km away
  57. 1.92 km WNW of Avenal, California · 14850 days ago · 12 km deep · 13 km away
  58. 1.811 km NNE of Coalinga, California · 14849 days ago · 8 km deep · 28 km away
  59. 2.410 km NW of Parkfield, California · 14848 days ago · 11 km deep · 43 km away
  60. 2.024 km NE of Greenfield, California · 14847 days ago · 7 km deep · 99 km away

The first 60 of 98.

Before

  1. 2.022 km NW of Parkfield, California · 14887 days ago · 6 km deep · 49 km away
  2. 1.67 km WNW of Kettleman City, California · 14887 days ago · 10 km deep · 8 km away
  3. 1.98 km NE of Coalinga, California · 14888 days ago · 10 km deep · 24 km away
  4. 1.61 km ESE of San Ardo, California · 14888 days ago · 11 km deep · 75 km away
  5. 1.77 km NNE of Coalinga, California · 14889 days ago · 7 km deep · 27 km away
  6. 1.617 km NW of Parkfield, California · 14889 days ago · 3 km deep · 47 km away
  7. 2.32 km ESE of San Ardo, California · 14889 days ago · 10 km deep · 74 km away
  8. 1.96 km N of Waukena, California · 14891 days ago · 30 km deep · 51 km away
  9. 1.815 km NW of Parkfield, California · 14891 days ago · 5 km deep · 46 km away
  10. 1.713 km N of Coalinga, California · 14892 days ago · 9 km deep · 31 km away
  11. 1.915 km NW of Parkfield, California · 14892 days ago · 5 km deep · 46 km away
  12. 3.025 km ENE of San Ardo, California · 14892 days ago · 5 km deep · 52 km away
  13. 1.715 km NW of Parkfield, California · 14893 days ago · 4 km deep · 46 km away
  14. 2.113km NNW of Simmler, CA · 14893 days ago · 4 km deep · 70 km away
  15. 1.911 km S of Huron, California · 14893 days ago · 7 km deep · 3 km away
  16. 1.824 km NE of Greenfield, California · 14893 days ago · 5 km deep · 96 km away
  17. 1.524 km NE of Greenfield, California · 14896 days ago · 5 km deep · 97 km away
  18. 2.311 km N of Coalinga, California · 14896 days ago · 10 km deep · 32 km away
  19. 1.611 km SW of Huron, California · 14897 days ago · 6 km deep · 14 km away
  20. 1.65 km N of Avenal, California · 14898 days ago · 6 km deep · 7 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc63652. Read Wed, Sep 23, 2026, 3:30 AM UTC.