California earthquakes

M1.8 earthquake 12 km WSW of Huron, California

A magnitude 1.8 earthquake struck 12 km WSW of Huron, California on Mon, Feb 27, 1984, 7:40 AM PST (15:40 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M4.0 7 km NE of Coalinga, 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
1984-02-27 15:40:14 UTC
Depth
9.2 km (5.7 mi), shallow
Epicenter
36.156° N, 120.225° 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, 0.5 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
133°
Stations used
24

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 81 in the 30 days before it.

After

  1. 2.414 km NNE of Coalinga, California · 15555 days ago · 10 km deep · 14 km away
  2. 1.715 km E of Shandon, California · 15555 days ago · 8 km deep · 56 km away
  3. 1.88 km ENE of Coalinga, California · 15554 days ago · 8 km deep · 4 km away
  4. 1.710 km ENE of Coalinga, California · 15554 days ago · 12 km deep · 3 km away
  5. 2.211 km ENE of Coalinga, California · 15554 days ago · 7 km deep · 3 km away
  6. 1.512 km W of Huron, California · 15554 days ago · 4 km deep · 7 km away
  7. 2.216 km N of Coalinga, California · 15554 days ago · 9 km deep · 20 km away
  8. 1.815 km N of Coalinga, California · 15554 days ago · 8 km deep · 19 km away
  9. 1.93 km WNW of Avenal, California · 15553 days ago · 12 km deep · 16 km away
  10. 2.0Central California · 15553 days ago · 14 km deep · 16 km away
  11. 1.79 km NE of Coalinga, California · 15553 days ago · 4 km deep · 6 km away
  12. 1.710 km ENE of Coalinga, California · 15553 days ago · 10 km deep · 4 km away
  13. 1.710 km NE of Coalinga, California · 15552 days ago · 8 km deep · 9 km away
  14. 2.311 km NE of Coalinga, California · 15552 days ago · 11 km deep · 8 km away
  15. 1.619 km NW of Parkfield, California · 15552 days ago · 4 km deep · 35 km away
  16. 2.818 km NW of Parkfield, California · 15552 days ago · 5 km deep · 35 km away
  17. 1.611 km E of Coalinga, California · 15552 days ago · 5 km deep · 4 km away
  18. 1.514 km NNE of Coalinga, California · 15552 days ago · 8 km deep · 14 km away
  19. 1.710 km ENE of Coalinga, California · 15551 days ago · 10 km deep · 3 km away
  20. 1.619 km S of Cantua Creek, California · 15550 days ago · 12 km deep · 23 km away
  21. 1.612 km E of Coalinga, California · 15549 days ago · 1 km deep · 1 km away
  22. 2.715 km NNW of Coalinga, California · 15549 days ago · 11 km deep · 22 km away
  23. 1.613 km NNW of Avenal, California · 15549 days ago · 7 km deep · 6 km away
  24. 1.69 km NE of Coalinga, California · 15549 days ago · 4 km deep · 7 km away
  25. 1.74 km N of Coalinga, California · 15549 days ago · -1 km deep · 13 km away
  26. 1.710 km NNW of Coalinga, California · 15548 days ago · 7 km deep · 19 km away
  27. 1.710 km NE of Coalinga, California · 15547 days ago · 9 km deep · 8 km away
  28. 1.618 km NW of Parkfield, California · 15546 days ago · 4 km deep · 35 km away
  29. 1.912 km E of Coalinga, California · 15546 days ago · 7 km deep · 0 km away
  30. 2.210 km SW of Huron, California · 15545 days ago · 6 km deep · 3 km away
  31. 1.715 km SE of Kettleman City, California · 15545 days ago · 4 km deep · 45 km away
  32. 2.015 km N of Cayucos, California · 15545 days ago · 6 km deep · 88 km away
  33. 1.510 km ENE of Coalinga, California · 15545 days ago · 8 km deep · 3 km away
  34. 1.69 km NE of Coalinga, California · 15544 days ago · 10 km deep · 8 km away
  35. 1.915 km NNW of Coalinga, California · 15544 days ago · 7 km deep · 21 km away
  36. 1.911 km NE of Coalinga, California · 15543 days ago · 12 km deep · 9 km away
  37. 3.29 km E of Coalinga, California · 15542 days ago · 5 km deep · 2 km away
  38. 2.525 km ENE of Greenfield, California · 15542 days ago · 1 km deep · 75 km away
  39. 2.325 km ENE of Greenfield, California · 15542 days ago · 1 km deep · 75 km away
  40. 2.06 km NE of Coalinga, California · 15542 days ago · 8 km deep · 8 km away
  41. 1.910 km ENE of Coalinga, California · 15542 days ago · 7 km deep · 2 km away
  42. 2.217 km S of Three Rocks, California · 15542 days ago · 4 km deep · 24 km away
  43. 1.524 km ENE of Greenfield, California · 15541 days ago · 5 km deep · 76 km away
  44. 2.02 km NW of Parkfield, California · 15541 days ago · 8 km deep · 34 km away
  45. 1.821 km NNE of Soledad, California · 15541 days ago · 8 km deep · 99 km away
  46. 1.912 km NW of Avenal, California · 15540 days ago · 9 km deep · 7 km away
  47. 1.811 km NE of Coalinga, California · 15539 days ago · 10 km deep · 9 km away
  48. 2.016 km NNW of Coalinga, California · 15539 days ago · 7 km deep · 22 km away
  49. 1.615 km N of Coalinga, California · 15539 days ago · 8 km deep · 17 km away
  50. 3.221 km N of Lost Hills, California · 15538 days ago · 11 km deep · 60 km away
  51. 1.816 km NNW of Coalinga, California · 15538 days ago · 6 km deep · 22 km away
  52. 1.811 km NNW of Coalinga, California · 15538 days ago · 3 km deep · 19 km away
  53. 1.717 km NNW of Coalinga, California · 15538 days ago · 6 km deep · 23 km away
  54. 1.822 km ENE of San Lucas, California · 15538 days ago · 9 km deep · 53 km away
  55. 1.612 km NNW of Coalinga, California · 15538 days ago · 5 km deep · 20 km away
  56. 1.89 km N of Coalinga, California · 15538 days ago · 12 km deep · 14 km away
  57. 2.29 km SW of Huron, California · 15538 days ago · 7 km deep · 5 km away
  58. 1.87km NNW of Coalinga, CA · 15537 days ago · 4 km deep · 15 km away
  59. 2.16 km N of Coalinga, California · 15537 days ago · 10 km deep · 12 km away
  60. 1.84 km ENE of Cambria, California · 15537 days ago · 1 km deep · 97 km away

The first 60 of 197.

Before

  1. 1.915 km N of Coalinga, California · 15556 days ago · 7 km deep · 19 km away
  2. 1.925 km ENE of Greenfield, California · 15556 days ago · 1 km deep · 76 km away
  3. 1.523 km NE of San Ardo, California · 15556 days ago · 7 km deep · 48 km away
  4. 1.5Central California · 15556 days ago · 6 km deep · 20 km away
  5. 1.99 km NW of Coalinga, California · 15557 days ago · 5 km deep · 19 km away
  6. 1.69 km NW of Coalinga, California · 15557 days ago · 6 km deep · 18 km away
  7. 1.816 km NNW of Coalinga, California · 15558 days ago · 8 km deep · 22 km away
  8. 2.516 km NNW of Coalinga, California · 15559 days ago · 8 km deep · 22 km away
  9. 2.06 km WSW of Three Rocks, California · 15559 days ago · 14 km deep · 41 km away
  10. 2.221 km NE of Soledad, California · 15560 days ago · 2 km deep · 93 km away
  11. 2.08 km E of Coalinga, California · 15560 days ago · 5 km deep · 3 km away
  12. 2.215 km N of Coalinga, California · 15560 days ago · 9 km deep · 20 km away
  13. 2.121 km NE of Soledad, California · 15560 days ago · 7 km deep · 99 km away
  14. 2.014 km N of Coalinga, California · 15560 days ago · 8 km deep · 17 km away
  15. 2.119 km N of Coalinga, California · 15560 days ago · 10 km deep · 22 km away
  16. 1.723 km NE of San Lucas, California · 15561 days ago · 7 km deep · 54 km away
  17. 1.85 km SSW of Kettleman City, California · 15562 days ago · 3 km deep · 29 km away
  18. 2.38 km ENE of Coalinga, California · 15562 days ago · 9 km deep · 5 km away
  19. 2.315 km N of Coalinga, California · 15562 days ago · 10 km deep · 17 km away
  20. 2.021 km NE of Soledad, California · 15562 days ago · 9 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc7931 (also filed as ci32519). Read Tue, Sep 29, 2026, 10:12 PM UTC.