California earthquakes

M1.8 earthquake 24 km ENE of Greenfield, California

A magnitude 1.8 earthquake struck 24 km ENE of Greenfield, California on Wed, Nov 18, 1981, 12:28 PM PST (20:28 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.0 8 km SSE of Gilroy, California. This one was a foreshock.

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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
1981-11-18 20:28:50 UTC
Depth
5.4 km (3.3 mi), shallow
Epicenter
36.436° N, 121.009° 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 0.2 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.19
Depth from
From location
Station coverage gap
82°
Stations used
29

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 140 in the 60 days after this one and 41 in the 30 days before it.

After

  1. 2.08 km SSE of Gilroy, California · 16377 days ago · 6 km deep · 73 km away
  2. 1.625 km NE of San Lucas, California · 16377 days ago · 7 km deep · 25 km away
  3. 1.95 km SSE of San Juan Bautista, California · 16376 days ago · 9 km deep · 61 km away
  4. 1.921 km NW of San Simeon, California · 16376 days ago · 1 km deep · 83 km away
  5. 1.822 km SW of Three Rocks, California · 16375 days ago · 16 km deep · 38 km away
  6. 1.624 km ENE of Greenfield, California · 16372 days ago · 5 km deep · 0 km away
  7. 1.911 km NNW of Hollister, California · 16371 days ago · 7 km deep · 69 km away
  8. 2.116 km NW of Parkfield, California · 16371 days ago · 5 km deep · 63 km away
  9. 2.423 km ENE of San Lucas, California · 16371 days ago · 5 km deep · 32 km away
  10. 1.816 km SSE of Tres Pinos, California · 16370 days ago · 5 km deep · 33 km away
  11. 2.023 km NE of King City, California · 16370 days ago · 4 km deep · 11 km away
  12. 2.85 km SSE of San Juan Bautista, California · 16370 days ago · 7 km deep · 61 km away
  13. 2.65 km SSE of San Juan Bautista, California · 16370 days ago · 7 km deep · 61 km away
  14. 1.76 km WNW of San Ardo, California · 16369 days ago · 6 km deep · 43 km away
  15. 2.35 km SSE of San Juan Bautista, California · 16369 days ago · 7 km deep · 61 km away
  16. 2.45 km SSE of San Juan Bautista, California · 16369 days ago · 7 km deep · 61 km away
  17. 1.95 km SSE of San Juan Bautista, California · 16369 days ago · 6 km deep · 61 km away
  18. 1.86 km WNW of San Ardo, California · 16369 days ago · 6 km deep · 44 km away
  19. 1.95 km SSE of San Juan Bautista, California · 16369 days ago · 6 km deep · 61 km away
  20. 1.721 km NE of Soledad, California · 16369 days ago · 7 km deep · 19 km away
  21. 2.12 km E of San Juan Bautista, California · 16367 days ago · 8 km deep · 63 km away
  22. 2.120 km SSE of Tres Pinos, California · 16367 days ago · 4 km deep · 28 km away
  23. 1.530 km ENE of Soledad, California · 16367 days ago · 6 km deep · 15 km away
  24. 1.624 km NE of Greenfield, California · 16367 days ago · 5 km deep · 7 km away
  25. 2.09 km E of Gilroy, California · 16367 days ago · 9 km deep · 74 km away
  26. 1.69 km NE of San Martin, California · 16367 days ago · 8 km deep · 93 km away
  27. 1.59 km NE of Morgan Hill, California · 16366 days ago · 5 km deep · 99 km away
  28. 1.612 km N of Hollister, California · 16366 days ago · 6 km deep · 69 km away
  29. 1.625 km SSW of Los Banos, California · 16365 days ago · 2 km deep · 45 km away
  30. 2.05 km SSW of Ridgemark, California · 16365 days ago · 9 km deep · 50 km away
  31. 1.721 km WSW of Greenfield, California · 16365 days ago · 12 km deep · 46 km away
  32. 1.730 km SW of South Dos Palos, California · 16364 days ago · 1 km deep · 38 km away
  33. 1.830 km SW of South Dos Palos, California · 16364 days ago · 4 km deep · 37 km away
  34. 3.122 km NE of San Ardo, California · 16363 days ago · 8 km deep · 38 km away
  35. 1.72 km NNW of Hollister, California · 16362 days ago · 7 km deep · 61 km away
  36. 1.921 km NE of Soledad, California · 16361 days ago · 6 km deep · 17 km away
  37. 1.6Near the coast of Central California · 16360 days ago · 8 km deep · 100 km away
  38. 2.38 km NE of San Martin, California · 16360 days ago · 8 km deep · 90 km away
  39. 2.07 km NW of El Nido, California · 16358 days ago · 10 km deep · 94 km away
  40. 2.1Central California · 16358 days ago · 3 km deep · 54 km away
  41. 1.99 km SSW of Tres Pinos, California · 16358 days ago · 3 km deep · 43 km away
  42. 1.69 km E of San Martin, California · 16357 days ago · 8 km deep · 85 km away
  43. 1.97 km NE of Cambria, California · 16357 days ago · 2 km deep · 92 km away
  44. 2.54 km WNW of San Juan Bautista, California · 16357 days ago · 6 km deep · 70 km away
  45. 1.730 km SE of Big Sur, California · 16356 days ago · 11 km deep · 66 km away
  46. 3.225 km ENE of Greenfield, California · 16356 days ago · 7 km deep · 3 km away
  47. 1.79 km NE of San Martin, California · 16356 days ago · 5 km deep · 93 km away
  48. 1.96 km SSE of Gilroy, California · 16356 days ago · 4 km deep · 74 km away
  49. 1.89 km NNE of San Juan Bautista, California · 16356 days ago · 2 km deep · 71 km away
  50. 1.638 km W of Three Rocks, California · 16354 days ago · 7 km deep · 20 km away
  51. 2.29 km E of Gilroy, California · 16354 days ago · 6 km deep · 75 km away
  52. 2.623 km NE of San Ardo, California · 16354 days ago · 8 km deep · 38 km away
  53. 1.521 km NE of Soledad, California · 16354 days ago · 2 km deep · 21 km away
  54. 2.425 km ENE of Greenfield, California · 16354 days ago · 7 km deep · 3 km away
  55. 1.8Central California · 16354 days ago · 6 km deep · 3 km away
  56. 2.521 km NW of Parkfield, California · 16352 days ago · 4 km deep · 58 km away
  57. 2.08 km ENE of San Martin, California · 16351 days ago · 7 km deep · 88 km away
  58. 1.68 km ENE of San Martin, California · 16351 days ago · 7 km deep · 89 km away
  59. 1.722 km NE of Soledad, California · 16351 days ago · 2 km deep · 15 km away
  60. 1.65 km SSW of Ridgemark, California · 16351 days ago · 5 km deep · 49 km away

The first 60 of 140.

Before

  1. 3.39 km ENE of Gilroy, California · 16381 days ago · 9 km deep · 80 km away
  2. 1.523 km NE of Soledad, California · 16381 days ago · 5 km deep · 17 km away
  3. 3.224 km ENE of Greenfield, California · 16381 days ago · 8 km deep · 1 km away
  4. 1.917 km SSE of Tres Pinos, California · 16381 days ago · 5 km deep · 32 km away
  5. 2.817 km SSE of Tres Pinos, California · 16381 days ago · 5 km deep · 32 km away
  6. 2.117 km SSE of Tres Pinos, California · 16381 days ago · 5 km deep · 32 km away
  7. 2.527 km SW of South Dos Palos, California · 16382 days ago · -1 km deep · 41 km away
  8. 1.88 km ENE of Gilroy, California · 16382 days ago · 4 km deep · 80 km away
  9. 1.730 km ENE of Soledad, California · 16383 days ago · 7 km deep · 15 km away
  10. 2.528 km ENE of Soledad, California · 16383 days ago · 8 km deep · 13 km away
  11. 1.822 km NNE of San Lucas, California · 16385 days ago · 4 km deep · 18 km away
  12. 1.520 km SW of Three Rocks, California · 16387 days ago · 17 km deep · 40 km away
  13. 1.623 km ENE of Soledad, California · 16387 days ago · 6 km deep · 9 km away
  14. 2.09 km NE of San Martin, California · 16387 days ago · 8 km deep · 91 km away
  15. 2.75 km SSE of San Juan Bautista, California · 16387 days ago · 8 km deep · 61 km away
  16. 2.49 km NW of Hollister, California · 16387 days ago · 5 km deep · 67 km away
  17. 1.726 km NE of San Ardo, California · 16388 days ago · 5 km deep · 38 km away
  18. 1.813 km N of Hollister, California · 16388 days ago · 7 km deep · 68 km away
  19. 2.022 km NE of San Lucas, California · 16388 days ago · 7 km deep · 24 km away
  20. 2.68 km SSW of Tres Pinos, California · 16388 days ago · 1 km deep · 43 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1069551. Read Tue, Sep 22, 2026, 8:43 AM UTC.