California earthquakes

M1.8 earthquake 7 km SSW of Huron, California

A magnitude 1.8 earthquake struck 7 km SSW of Huron, California on Wed, Aug 31, 1983, 11:42 AM PDT (18:42 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M5.5 11 km NE of Coalinga, California. This one was a foreshock.

Huron forecastMore in California

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

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The earthquake

Magnitude
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1983-08-31 18:42:29 UTC
Depth
4.0 km (2.5 mi), shallow
Epicenter
36.148° N, 120.147° 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, 1.5 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
227°, poorly surrounded by stations
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 198 in the 30 days before it.

After

  1. 2.07 km ENE of Coalinga, California · 15737 days ago · 8 km deep · 13 km away
  2. 1.99 km SW of Huron, California · 15737 days ago · 2 km deep · 3 km away
  3. 1.911 km E of Coalinga, California · 15737 days ago · 9 km deep · 8 km away
  4. 1.97 km W of Kettleman City, California · 15737 days ago · 21 km deep · 19 km away
  5. 2.111 km N of Coalinga, California · 15737 days ago · 8 km deep · 23 km away
  6. 1.611 km WNW of Huron, California · 15737 days ago · 4 km deep · 12 km away
  7. 1.612 km WNW of Huron, California · 15737 days ago · 9 km deep · 13 km away
  8. 3.316 km N of Coalinga, California · 15737 days ago · 9 km deep · 26 km away
  9. 1.512 km NE of Coalinga, California · 15736 days ago · 7 km deep · 13 km away
  10. 2.317 km NNW of Coalinga, California · 15736 days ago · 8 km deep · 29 km away
  11. 1.69 km NE of Coalinga, California · 15736 days ago · 6 km deep · 13 km away
  12. 1.615 km NNW of Coalinga, California · 15736 days ago · 10 km deep · 28 km away
  13. 2.110 km N of Coalinga, California · 15736 days ago · 7 km deep · 23 km away
  14. 1.817 km NNW of Coalinga, California · 15736 days ago · 8 km deep · 29 km away
  15. 1.624 km NE of Greenfield, California · 15735 days ago · 5 km deep · 90 km away
  16. 3.07 km E of Coalinga, California · 15735 days ago · 7 km deep · 12 km away
  17. 1.99 km E of Coalinga, California · 15735 days ago · 8 km deep · 10 km away
  18. 2.58 km WSW of Huron, California · 15735 days ago · 4 km deep · 4 km away
  19. 1.610 km ENE of Coalinga, California · 15735 days ago · 9 km deep · 9 km away
  20. 1.99 km ENE of Coalinga, California · 15735 days ago · 8 km deep · 10 km away
  21. 1.69 km E of Coalinga, California · 15735 days ago · 7 km deep · 10 km away
  22. 1.810 km W of Huron, California · 15735 days ago · 8 km deep · 10 km away
  23. 1.512 km NW of Coalinga, California · 15734 days ago · 4 km deep · 28 km away
  24. 1.96 km NE of Coalinga, California · 15734 days ago · 9 km deep · 16 km away
  25. 1.617 km NNW of Coalinga, California · 15734 days ago · 10 km deep · 28 km away
  26. 1.917 km NNW of Coalinga, California · 15734 days ago · 7 km deep · 29 km away
  27. 3.36 km NE of Coalinga, California · 15734 days ago · 8 km deep · 15 km away
  28. 1.77 km NE of Coalinga, California · 15734 days ago · 7 km deep · 15 km away
  29. 2.014 km NNW of Coalinga, California · 15733 days ago · 4 km deep · 28 km away
  30. 1.514 km N of Coalinga, California · 15733 days ago · 8 km deep · 25 km away
  31. 1.916 km N of Coalinga, California · 15733 days ago · 9 km deep · 27 km away
  32. 1.916 km NNW of Coalinga, California · 15732 days ago · 8 km deep · 27 km away
  33. 1.77 km NW of Huron, California · 15732 days ago · 8 km deep · 11 km away
  34. 2.413 km N of Coalinga, California · 15732 days ago · 9 km deep · 23 km away
  35. 1.923 km NE of San Ardo, California · 15732 days ago · 7 km deep · 55 km away
  36. 1.911 km WSW of Huron, California · 15732 days ago · 13 km deep · 8 km away
  37. 2.223 km NE of San Ardo, California · 15732 days ago · 7 km deep · 55 km away
  38. 2.011 km NNE of Coalinga, California · 15732 days ago · 7 km deep · 17 km away
  39. 1.78 km E of Coalinga, California · 15732 days ago · 8 km deep · 11 km away
  40. 1.810 km NE of Coalinga, California · 15732 days ago · 8 km deep · 13 km away
  41. 2.013 km NE of Coalinga, California · 15732 days ago · 7 km deep · 12 km away
  42. 2.59 km NE of Coalinga, California · 15731 days ago · 9 km deep · 13 km away
  43. 1.516 km NNW of Coalinga, California · 15731 days ago · 7 km deep · 28 km away
  44. 1.814 km NE of Coalinga, California · 15731 days ago · 1 km deep · 14 km away
  45. 3.617 km NNW of Coalinga, California · 15731 days ago · 12 km deep · 32 km away
  46. 2.27 km WSW of Huron, California · 15730 days ago · 4 km deep · 4 km away
  47. 1.715 km NNW of Coalinga, California · 15730 days ago · 9 km deep · 30 km away
  48. 2.69 km N of Coalinga, California · 15729 days ago · 11 km deep · 22 km away
  49. 1.713 km N of Coalinga, California · 15729 days ago · 11 km deep · 21 km away
  50. 1.811 km NNW of Coalinga, California · 15729 days ago · 10 km deep · 25 km away
  51. 2.011 km NNE of Coalinga, California · 15729 days ago · 10 km deep · 17 km away
  52. 2.1Central California · 15729 days ago · 5 km deep · 13 km away
  53. 5.511 km NE of Coalinga, California · 15729 days ago · 7 km deep · 14 km away
  54. 4.112 km NNE of Coalinga, California · 15729 days ago · 7 km deep · 16 km away
  55. 2.212 km NE of Coalinga, California · 15729 days ago · 2 km deep · 14 km away
  56. 1.812 km NE of Coalinga, California · 15729 days ago · 5 km deep · 14 km away
  57. 2.110 km WNW of Huron, California · 15729 days ago · 6 km deep · 11 km away
  58. 1.9Central California · 15729 days ago · 7 km deep · 14 km away
  59. 1.9Central California · 15729 days ago · 6 km deep · 11 km away
  60. 1.713 km WNW of Huron, California · 15729 days ago · 8 km deep · 15 km away

The first 60 of at least 199.

Before

  1. 1.67 km NNE of Coalinga, California · 15738 days ago · 11 km deep · 16 km away
  2. 2.417 km NNW of Coalinga, California · 15738 days ago · 9 km deep · 29 km away
  3. 2.224 km ENE of Greenfield, California · 15738 days ago · 5 km deep · 84 km away
  4. 1.914 km WSW of Three Rocks, California · 15738 days ago · 19 km deep · 50 km away
  5. 2.311 km NNE of Coalinga, California · 15738 days ago · 9 km deep · 18 km away
  6. 2.010 km NW of Coalinga, California · 15739 days ago · 4 km deep · 26 km away
  7. 1.911 km E of Coalinga, California · 15739 days ago · 9 km deep · 8 km away
  8. 1.710 km WNW of Corcoran, California · 15739 days ago · 2 km deep · 42 km away
  9. 2.523 km WNW of Three Rocks, California · 15739 days ago · 10 km deep · 66 km away
  10. 2.215 km NNW of Coalinga, California · 15739 days ago · 10 km deep · 26 km away
  11. 1.712 km SW of Huron, California · 15739 days ago · 6 km deep · 6 km away
  12. 2.519 km NNW of Coalinga, California · 15739 days ago · 9 km deep · 34 km away
  13. 1.63 km WSW of Huron, California · 15739 days ago · 7 km deep · 5 km away
  14. 1.610 km N of Coalinga, California · 15740 days ago · 8 km deep · 20 km away
  15. 2.111 km E of Coalinga, California · 15740 days ago · 6 km deep · 8 km away
  16. 1.98 km NW of Coalinga, California · 15740 days ago · 7 km deep · 25 km away
  17. 1.78 km NNW of Coalinga, California · 15741 days ago · 8 km deep · 23 km away
  18. 1.610 km ENE of Coalinga, California · 15741 days ago · 9 km deep · 10 km away
  19. 2.58 km E of Coalinga, California · 15741 days ago · 10 km deep · 10 km away
  20. 1.611 km SW of Huron, California · 15741 days ago · 7 km deep · 5 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1101650 (also filed as ci21046). Read Fri, Oct 2, 2026, 11:49 AM UTC.