California earthquakes

M2.3 earthquake 16 km W of Volta, California

A magnitude 2.3 earthquake struck 16 km W of Volta, California on Sun, Apr 1, 1984, 10:12 PM PST (06:12 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M6.2 The 1984 Morgan Hill, California Earthquake. 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
2.3 (md), micro
Local time
UTC
1984-04-02 06:12:43 UTC
Depth
-0.4 km (-0.3 mi), shallow
Epicenter
37.108° N, 121.115° 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 0.4 km horizontally, 3.0 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
165°
Stations used
71

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 185 in the 60 days after this one and 46 in the 30 days before it.

After

  1. 1.55 km SSW of Gilroy, California · 15520 days ago · 3 km deep · 45 km away
  2. 1.924 km ENE of Soledad, California · 15519 days ago · 3 km deep · 68 km away
  3. 1.730 km WNW of Three Rocks, California · 15519 days ago · 7 km deep · 70 km away
  4. 2.116 km SSE of Catheys Valley, California · 15518 days ago · 22 km deep · 97 km away
  5. 2.35 km SSW of Gilroy, California · 15517 days ago · 3 km deep · 45 km away
  6. 1.935 km SSW of South Dos Palos, California · 15517 days ago · 4 km deep · 52 km away
  7. 2.135 km SSW of South Dos Palos, California · 15517 days ago · 5 km deep · 51 km away
  8. 2.423 km ENE of Soledad, California · 15516 days ago · 4 km deep · 68 km away
  9. 2.124 km NE of Greenfield, California · 15516 days ago · 6 km deep · 71 km away
  10. 2.124 km ENE of Soledad, California · 15516 days ago · 4 km deep · 68 km away
  11. 2.88 km W of Diablo Grande, California · 15515 days ago · 10 km deep · 40 km away
  12. 1.95 km SSE of San Juan Bautista, California · 15514 days ago · 5 km deep · 49 km away
  13. 2.224 km NE of Greenfield, California · 15513 days ago · 5 km deep · 71 km away
  14. 1.63 km NNW of Hollister, California · 15513 days ago · 6 km deep · 37 km away
  15. 1.820 km SSE of Tres Pinos, California · 15513 days ago · 4 km deep · 55 km away
  16. 1.922 km NE of Soledad, California · 15509 days ago · 2 km deep · 63 km away
  17. 1.55 km SW of Tres Pinos, California · 15508 days ago · 9 km deep · 45 km away
  18. 2.54 km SE of Le Grand, California · 15508 days ago · 0 km deep · 80 km away
  19. 2.09 km NE of San Martin, California · 15507 days ago · 8 km deep · 37 km away
  20. 1.824 km NE of King City, California · 15506 days ago · 1 km deep · 82 km away
  21. 1.93 km W of San Juan Bautista, California · 15505 days ago · 6 km deep · 50 km away
  22. 1.822 km NE of San Lucas, California · 15504 days ago · 7 km deep · 96 km away
  23. 1.832 km W of Three Rocks, California · 15502 days ago · 10 km deep · 77 km away
  24. 1.821 km NE of Soledad, California · 15502 days ago · 6 km deep · 63 km away
  25. 1.78 km ESE of East Foothills, California · 15500 days ago · 2 km deep · 60 km away
  26. 2.025 km NNE of King City, California · 15500 days ago · 1 km deep · 79 km away
  27. 1.912 km N of Morgan Hill, California · 15500 days ago · 6 km deep · 49 km away
  28. 2.111 km S of Tres Pinos, California · 15499 days ago · 8 km deep · 51 km away
  29. 2.03 km ESE of Aromas, California · 15499 days ago · 6 km deep · 51 km away
  30. 1.53 km ESE of Aromas, California · 15499 days ago · 7 km deep · 51 km away
  31. 2.23 km ESE of Aromas, California · 15498 days ago · 7 km deep · 51 km away
  32. 1.54 km NE of San Martin, California · 15498 days ago · 5 km deep · 41 km away
  33. 6.2The 1984 Morgan Hill, California Earthquake · 15497 days ago · 8 km deep · 55 km away
  34. 3.915 km E of Seven Trees, California · 15497 days ago · 6 km deep · 52 km away
  35. 2.615 km E of Seven Trees, California · 15497 days ago · 9 km deep · 52 km away
  36. 3.415 km E of Seven Trees, California · 15497 days ago · 5 km deep · 53 km away
  37. 3.316 km N of Morgan Hill, California · 15497 days ago · 8 km deep · 51 km away
  38. 3.114 km N of Morgan Hill, California · 15497 days ago · 6 km deep · 50 km away
  39. 2.119 km ESE of East Foothills, California · 15497 days ago · 5 km deep · 50 km away
  40. 2.012 km N of Morgan Hill, California · 15497 days ago · 4 km deep · 51 km away
  41. 2.516 km E of Seven Trees, California · 15497 days ago · 8 km deep · 52 km away
  42. 2.116 km N of Morgan Hill, California · 15497 days ago · 5 km deep · 51 km away
  43. 1.711 km NNE of Morgan Hill, California · 15497 days ago · 9 km deep · 45 km away
  44. 1.810 km NE of Morgan Hill, California · 15497 days ago · 8 km deep · 42 km away
  45. 1.614 km N of Morgan Hill, California · 15497 days ago · 6 km deep · 50 km away
  46. 1.514 km E of Seven Trees, California · 15497 days ago · 4 km deep · 54 km away
  47. 2.613 km N of Morgan Hill, California · 15497 days ago · 4 km deep · 49 km away
  48. 1.512 km NNE of Morgan Hill, California · 15497 days ago · 4 km deep · 48 km away
  49. 2.29 km NNE of Morgan Hill, California · 15497 days ago · 5 km deep · 45 km away
  50. 2.214 km N of Morgan Hill, California · 15497 days ago · 7 km deep · 51 km away
  51. 2.110 km NE of Morgan Hill, California · 15497 days ago · 9 km deep · 42 km away
  52. 2.816 km N of Morgan Hill, California · 15497 days ago · 6 km deep · 51 km away
  53. 3.510 km NNE of Morgan Hill, California · 15497 days ago · 9 km deep · 44 km away · felt by 113
  54. 1.814 km E of Seven Trees, California · 15497 days ago · 5 km deep · 54 km away
  55. 2.914 km N of Morgan Hill, California · 15497 days ago · 4 km deep · 50 km away
  56. 3.114 km N of Morgan Hill, California · 15497 days ago · 4 km deep · 50 km away
  57. 2.714 km N of Morgan Hill, California · 15497 days ago · 5 km deep · 50 km away
  58. 2.016 km N of Morgan Hill, California · 15497 days ago · 7 km deep · 51 km away
  59. 1.614 km E of Seven Trees, California · 15497 days ago · 5 km deep · 54 km away
  60. 2.310 km ESE of East Foothills, California · 15497 days ago · 7 km deep · 59 km away

The first 60 of 185.

Before

  1. 2.322 km NE of Soledad, California · 15520 days ago · 3 km deep · 58 km away
  2. 2.027 km WNW of Three Rocks, California · 15520 days ago · 8 km deep · 71 km away
  3. 1.67 km E of East Foothills, California · 15522 days ago · 5 km deep · 62 km away
  4. 1.67 km SSW of Ridgemark, California · 15522 days ago · 0 km deep · 47 km away
  5. 2.522 km NNE of Soledad, California · 15522 days ago · 4 km deep · 56 km away
  6. 1.57 km ESE of East Foothills, California · 15522 days ago · 6 km deep · 62 km away
  7. 2.47 km E of East Foothills, California · 15522 days ago · 6 km deep · 62 km away
  8. 2.67 km E of East Foothills, California · 15522 days ago · 6 km deep · 62 km away
  9. 1.69 km ENE of Gilroy, California · 15523 days ago · 8 km deep · 33 km away
  10. 1.71 km SW of Tres Pinos, California · 15523 days ago · 4 km deep · 41 km away
  11. 1.77 km NE of Tres Pinos, California · 15524 days ago · 6 km deep · 33 km away
  12. 2.02 km ESE of Tres Pinos, California · 15525 days ago · 7 km deep · 39 km away
  13. 1.84 km ESE of La Vina, California · 15526 days ago · 6 km deep · 97 km away
  14. 1.67 km E of East Foothills, California · 15526 days ago · 6 km deep · 62 km away
  15. 1.55 km E of Fremont, California · 15526 days ago · 6 km deep · 87 km away
  16. 4.010 km WSW of Ridgemark, California · 15527 days ago · 8 km deep · 49 km away
  17. 1.69 km NE of San Martin, California · 15527 days ago · 8 km deep · 38 km away
  18. 2.419 km SW of Three Rocks, California · 15527 days ago · 72 km deep · 96 km away
  19. 1.625 km NE of Greenfield, California · 15527 days ago · 7 km deep · 72 km away
  20. 1.627 km NE of Soledad, California · 15528 days ago · 8 km deep · 60 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc13376. Read Mon, Sep 28, 2026, 10:46 PM UTC.