California earthquakes

M2.1 earthquake 10 km W of Huron, California

A magnitude 2.1 earthquake struck 10 km W of Huron, California on Tue, Apr 28, 1981, 9:28 PM PDT (04:28 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M2.8 21 km SE of Tres Pinos, 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
2.1 (md), micro
Local time
UTC
1981-04-29 04:28:22 UTC
Depth
8.2 km (5.1 mi), shallow
Epicenter
36.205° N, 120.219° 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 0.5 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
224°, poorly surrounded by stations
Stations used
48

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 88 in the 60 days after this one and 42 in the 30 days before it.

After

  1. 2.025 km ENE of Greenfield, California · 16582 days ago · 5 km deep · 75 km away
  2. 1.614 km SE of Parkfield, California · 16581 days ago · 9 km deep · 47 km away
  3. 1.524 km ENE of Greenfield, California · 16579 days ago · 6 km deep · 73 km away
  4. 1.723 km NNE of San Lucas, California · 16578 days ago · 5 km deep · 62 km away
  5. 2.821 km SE of Tres Pinos, California · 16577 days ago · 8 km deep · 98 km away
  6. 1.721 km SE of Tres Pinos, California · 16577 days ago · 7 km deep · 99 km away
  7. 1.52 km SE of San Ardo, California · 16575 days ago · 11 km deep · 64 km away
  8. 2.621 km SE of Tres Pinos, California · 16575 days ago · 7 km deep · 98 km away
  9. 1.925 km NNE of King City, California · 16575 days ago · 5 km deep · 71 km away
  10. 2.223 km W of Three Rocks, California · 16574 days ago · 8 km deep · 52 km away
  11. 1.637 km W of Three Rocks, California · 16573 days ago · 3 km deep · 65 km away
  12. 1.624 km WSW of Coalinga, California · 16572 days ago · 5 km deep · 39 km away
  13. 1.619 km NW of Parkfield, California · 16572 days ago · 4 km deep · 38 km away
  14. 1.738 km W of Three Rocks, California · 16571 days ago · 1 km deep · 65 km away
  15. 1.823 km NE of Soledad, California · 16569 days ago · 8 km deep · 91 km away
  16. 1.722 km NE of Soledad, California · 16569 days ago · 8 km deep · 91 km away
  17. 2.023 km NE of King City, California · 16569 days ago · 7 km deep · 68 km away
  18. 2.18 km W of Huron, California · 16569 days ago · 7 km deep · 2 km away
  19. 2.25 km SSE of Parkfield, California · 16567 days ago · 5 km deep · 42 km away
  20. 2.115 km E of Kettleman City, California · 16567 days ago · 8 km deep · 45 km away
  21. 2.424 km NE of Greenfield, California · 16565 days ago · 8 km deep · 80 km away
  22. 3.013 km SSE of Parkfield, California · 16565 days ago · 10 km deep · 47 km away
  23. 1.725 km SW of Three Rocks, California · 16565 days ago · 14 km deep · 32 km away
  24. 1.822 km ENE of Soledad, California · 16564 days ago · 3 km deep · 89 km away
  25. 2.222 km NE of Soledad, California · 16564 days ago · 4 km deep · 96 km away
  26. 2.218 km SSW of Kettleman City, California · 16562 days ago · 16 km deep · 44 km away
  27. 2.921 km SSE of Avenal, California · 16562 days ago · 12 km deep · 45 km away
  28. 3.020 km S of Avenal, California · 16562 days ago · 12 km deep · 44 km away
  29. 1.618km S of Kettleman City, CA · 16562 days ago · 5 km deep · 46 km away
  30. 1.620 km S of Kettleman City, California · 16562 days ago · 2 km deep · 47 km away
  31. 2.523 km SSE of Avenal, California · 16562 days ago · 16 km deep · 48 km away
  32. 1.929km SSE of Kettleman City, CA · 16562 days ago · 5 km deep · 59 km away
  33. 2.214km S of Kettleman City, CA · 16562 days ago · 5 km deep · 44 km away
  34. 1.516km S of Avenal, CA · 16562 days ago · 5 km deep · 40 km away
  35. 2.321 km S of Avenal, California · 16562 days ago · 9 km deep · 44 km away
  36. 1.624 km NE of Greenfield, California · 16561 days ago · 3 km deep · 80 km away
  37. 2.11 km NNE of Atascadero, California · 16560 days ago · 9 km deep · 88 km away
  38. 2.031 km WNW of Three Rocks, California · 16559 days ago · 10 km deep · 62 km away
  39. 1.924 km ENE of Greenfield, California · 16557 days ago · 6 km deep · 75 km away
  40. 2.06 km SSE of Parkfield, CA · 16557 days ago · 4 km deep · 42 km away
  41. 1.96 km SSE of Parkfield, CA · 16557 days ago · 4 km deep · 42 km away
  42. 1.820 km ESE of Tres Pinos, California · 16555 days ago · 6 km deep · 98 km away
  43. 2.620 km S of Kettleman City, California · 16554 days ago · 9 km deep · 47 km away
  44. 2.132 km NW of Coalinga, California · 16552 days ago · 14 km deep · 41 km away
  45. 2.121 km NE of Soledad, California · 16551 days ago · 2 km deep · 91 km away
  46. 2.112 km NW of Huron, California · 16551 days ago · 19 km deep · 10 km away
  47. 1.624 km NE of King City, California · 16551 days ago · 5 km deep · 67 km away
  48. 1.622 km ENE of San Lucas, California · 16551 days ago · 9 km deep · 53 km away
  49. 2.338 km W of Three Rocks, California · 16550 days ago · 7 km deep · 66 km away
  50. 1.823 km NE of Greenfield, California · 16549 days ago · 5 km deep · 79 km away
  51. 1.612 km W of Avenal, California · 16549 days ago · 8 km deep · 23 km away
  52. 1.626 km NE of Soledad, California · 16548 days ago · 12 km deep · 89 km away
  53. 1.724 km ENE of Greenfield, California · 16547 days ago · 5 km deep · 75 km away
  54. 1.618 km NW of Parkfield, California · 16543 days ago · 4 km deep · 38 km away
  55. 2.221 km ESE of Tres Pinos, California · 16542 days ago · 5 km deep · 96 km away
  56. 2.219 km NW of Parkfield, California · 16542 days ago · 4 km deep · 38 km away
  57. 2.022 km NE of Soledad, California · 16542 days ago · 3 km deep · 89 km away
  58. 1.530 km WNW of Three Rocks, California · 16541 days ago · 4 km deep · 61 km away
  59. 1.929 km WNW of Three Rocks, California · 16541 days ago · 10 km deep · 61 km away
  60. 1.525 km NE of Soledad, California · 16540 days ago · 8 km deep · 88 km away

The first 60 of 88.

Before

  1. 2.424 km NE of Soledad, California · 16585 days ago · 4 km deep · 92 km away
  2. 2.726 km SE of Tres Pinos, California · 16585 days ago · 10 km deep · 92 km away
  3. 2.023 km NW of Parkfield, California · 16586 days ago · 3 km deep · 39 km away
  4. 1.730 km NE of San Lucas, California · 16586 days ago · 9 km deep · 52 km away
  5. 3.112 km W of Oak Shores, California · 16586 days ago · 5 km deep · 94 km away
  6. 1.912 km NE of Coalinga, California · 16587 days ago · 8 km deep · 3 km away
  7. 1.613 km SE of Parkfield, California · 16587 days ago · 4 km deep · 46 km away
  8. 1.626 km NE of King City, California · 16587 days ago · 4 km deep · 67 km away
  9. 2.426 km NE of King City, California · 16587 days ago · 6 km deep · 67 km away
  10. 1.82 km ESE of San Ardo, California · 16589 days ago · 11 km deep · 63 km away
  11. 1.523 km ENE of San Ardo, California · 16589 days ago · 7 km deep · 42 km away
  12. 1.813 km W of Oak Shores, California · 16590 days ago · 5 km deep · 94 km away
  13. 1.724 km NE of Greenfield, California · 16590 days ago · 5 km deep · 81 km away
  14. 1.824 km NE of Greenfield, California · 16592 days ago · 5 km deep · 79 km away
  15. 1.623 km ENE of King City, California · 16593 days ago · 9 km deep · 63 km away
  16. 1.524 km ENE of Greenfield, California · 16594 days ago · 4 km deep · 76 km away
  17. 1.722 km ESE of Shandon, California · 16594 days ago · 11 km deep · 70 km away
  18. 1.521 km ESE of Shandon, California · 16594 days ago · 11 km deep · 70 km away
  19. 1.624 km ENE of Greenfield, California · 16594 days ago · 6 km deep · 76 km away
  20. 1.815 km NW of Parkfield, California · 16597 days ago · 5 km deep · 38 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1063113 (also filed as ci515652). Read Tue, Sep 22, 2026, 3:43 PM UTC.