California earthquakes

M1.9 earthquake Central California

A magnitude 1.9 earthquake struck in Central California on Wed, Jan 28, 1976, 6:40 PM PST (02:40 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M2.4 25 km ENE of Greenfield, 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
1.9 (md), micro
Local time
UTC
1976-01-29 02:40:47 UTC
Depth
6.2 km (3.9 mi), shallow
Epicenter
36.585° N, 121.907° 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
±0.07
Depth from
From location
Station coverage gap
169°
Stations used
32

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 188 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 2.425 km ENE of Greenfield, California · 18495 days ago · 2 km deep · 84 km away
  2. 2.22 km SSW of Ridgemark, California · 18495 days ago · 4 km deep · 52 km away
  3. 2.225 km ENE of Greenfield, California · 18495 days ago · 2 km deep · 82 km away
  4. 3.34 km ENE of Tres Pinos, California · 18495 days ago · 6 km deep · 61 km away
  5. 1.63 km ENE of Tres Pinos, California · 18495 days ago · 5 km deep · 61 km away
  6. 2.624 km ENE of Soledad, California · 18495 days ago · 6 km deep · 76 km away
  7. 2.624 km NE of Greenfield, California · 18495 days ago · 6 km deep · 78 km away
  8. 2.020 km SSE of Tres Pinos, California · 18494 days ago · 4 km deep · 61 km away
  9. 2.09 km SSW of Diablo Grande, California · 18494 days ago · 0 km deep · 97 km away
  10. 1.77 km WSW of Ridgemark, California · 18493 days ago · 7 km deep · 47 km away
  11. 2.16 km SW of Gilroy, California · 18492 days ago · 4 km deep · 49 km away
  12. 1.79 km NE of Gilroy, California · 18491 days ago · 6 km deep · 65 km away
  13. 2.211 km S of Tres Pinos, California · 18491 days ago · 4 km deep · 54 km away
  14. 2.523 km NNE of San Lucas, California · 18490 days ago · 6 km deep · 97 km away
  15. 1.57 km ENE of Gilroy, California · 18490 days ago · 8 km deep · 63 km away
  16. 2.424 km ENE of Greenfield, California · 18490 days ago · 5 km deep · 84 km away
  17. 2.223 km ENE of Soledad, California · 18490 days ago · 3 km deep · 73 km away
  18. 1.89 km NE of Milpitas, California · 18490 days ago · 7 km deep · 100 km away
  19. 1.723 km ENE of Soledad, California · 18490 days ago · 5 km deep · 75 km away
  20. 1.85 km SSW of Gilroy, California · 18489 days ago · 4 km deep · 51 km away
  21. 1.528 km NE of Soledad, California · 18489 days ago · 9 km deep · 72 km away
  22. 2.024 km NE of Greenfield, California · 18488 days ago · 5 km deep · 78 km away
  23. 1.617 km E of Tres Pinos, California · 18487 days ago · 6 km deep · 74 km away
  24. 2.123 km NE of King City, California · 18487 days ago · 4 km deep · 88 km away
  25. 2.4Central California · 18487 days ago · 4 km deep · 74 km away
  26. 1.75 km SW of Gilroy, California · 18486 days ago · 4 km deep · 50 km away
  27. 2.624 km NE of Greenfield, California · 18485 days ago · 2 km deep · 80 km away
  28. 4.05 km ENE of Tres Pinos, California · 18485 days ago · 4 km deep · 62 km away
  29. 1.65 km E of Tres Pinos, California · 18485 days ago · 3 km deep · 62 km away
  30. 1.64 km SW of Gilroy, California · 18485 days ago · 0 km deep · 51 km away
  31. 2.824 km NE of Greenfield, California · 18485 days ago · 2 km deep · 80 km away
  32. 1.83 km ESE of Aromas, CA · 18485 days ago · 5 km deep · 42 km away
  33. 2.322 km NE of San Lucas, California · 18484 days ago · 5 km deep · 98 km away
  34. 2.414 km E of Seven Trees, California · 18484 days ago · 6 km deep · 82 km away
  35. 1.94 km ENE of Tres Pinos, California · 18484 days ago · 8 km deep · 61 km away
  36. 1.736 km SSW of South Dos Palos, California · 18483 days ago · 6 km deep · 96 km away
  37. 1.719 km SSE of Tres Pinos, California · 18483 days ago · 8 km deep · 59 km away
  38. 2.04 km ENE of Tres Pinos, California · 18482 days ago · 5 km deep · 61 km away
  39. 2.825 km NE of King City, California · 18482 days ago · 0 km deep · 88 km away
  40. 2.523 km ENE of Soledad, California · 18481 days ago · 3 km deep · 74 km away
  41. 2.617 km SW of Volta, California · 18481 days ago · 4 km deep · 88 km away
  42. 2.423 km ENE of Soledad, California · 18481 days ago · 4 km deep · 74 km away
  43. 1.6Central California · 18481 days ago · 6 km deep · 53 km away
  44. 1.8Central California · 18480 days ago · 7 km deep · 57 km away
  45. 2.114 km N of Morgan Hill, California · 18480 days ago · 6 km deep · 79 km away
  46. 1.910 km S of Tres Pinos, California · 18480 days ago · 4 km deep · 53 km away
  47. 1.918 km E of Big Sur, California · 18479 days ago · 7 km deep · 47 km away
  48. 2.515 km W of Volta, California · 18479 days ago · 2 km deep · 92 km away
  49. 1.88 km E of East Foothills, California · 18479 days ago · 9 km deep · 88 km away
  50. 1.6Central California · 18479 days ago · 3 km deep · 58 km away
  51. 2.8Northern California · 18478 days ago · 9 km deep · 70 km away
  52. 1.924 km NE of Soledad, California · 18478 days ago · 6 km deep · 72 km away
  53. 2.224 km NE of Greenfield, California · 18478 days ago · 0 km deep · 81 km away
  54. 1.726 km NE of Soledad, California · 18477 days ago · 7 km deep · 70 km away
  55. 3.025 km ENE of Soledad, California · 18477 days ago · 7 km deep · 74 km away
  56. 1.724 km NE of Soledad, California · 18477 days ago · 10 km deep · 69 km away
  57. 2.28 km NNE of San Juan Bautista, California · 18476 days ago · 5 km deep · 52 km away
  58. 2.4Central California · 18476 days ago · 2 km deep · 68 km away
  59. 2.323 km NNE of San Lucas, California · 18476 days ago · 2 km deep · 97 km away
  60. 1.724 km NE of Greenfield, California · 18476 days ago · 5 km deep · 78 km away

The first 60 of 188.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1028609. Read Tue, Sep 22, 2026, 9:33 PM UTC.