California earthquakes

M2.7 earthquake 25 km WSW of Volta, California

A magnitude 2.7 earthquake struck 25 km WSW of Volta, California on Mon, May 21, 1979, 4:44 PM PDT (23:44 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.4 23 km ENE of Soledad, California. This one was a foreshock.

Hollister forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
2.7 (md), micro
Local time
UTC
1979-05-21 23:44:00 UTC
Depth
3.0 km (1.9 mi), shallow
Epicenter
37.020° N, 121.197° 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, 2.6 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
92°
Stations used
41

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 129 in the 60 days after this one and 67 in the 30 days before it.

After

  1. 2.525 km WSW of Volta, California · 17298 days ago · 4 km deep · 0 km away
  2. 2.27 km W of Gilroy, California · 17297 days ago · 6 km deep · 40 km away
  3. 2.411 km S of Tres Pinos, California · 17296 days ago · 5 km deep · 38 km away
  4. 1.722 km NNE of Soledad, California · 17295 days ago · 6 km deep · 46 km away
  5. 3.132 km NE of San Lucas, California · 17294 days ago · 9 km deep · 86 km away
  6. 2.432 km NE of San Lucas, California · 17294 days ago · 9 km deep · 86 km away
  7. 2.014 km N of Morgan Hill, California · 17294 days ago · 5 km deep · 48 km away
  8. 1.722 km NNE of Soledad, California · 17293 days ago · 2 km deep · 47 km away
  9. 3.423 km ENE of Soledad, California · 17292 days ago · 4 km deep · 54 km away
  10. 3.323 km ENE of Soledad, California · 17292 days ago · 1 km deep · 55 km away
  11. 1.623 km ENE of Soledad, California · 17292 days ago · 3 km deep · 58 km away
  12. 1.524 km NE of Greenfield, California · 17291 days ago · 5 km deep · 62 km away
  13. 2.112 km S of Tres Pinos, California · 17291 days ago · 5 km deep · 39 km away
  14. 2.223 km ENE of Soledad, California · 17291 days ago · 2 km deep · 55 km away
  15. 2.123 km ENE of Soledad, California · 17291 days ago · 0 km deep · 55 km away
  16. 2.023 km ENE of Soledad, California · 17291 days ago · 4 km deep · 55 km away
  17. 1.823 km ENE of Soledad, California · 17291 days ago · 1 km deep · 55 km away
  18. 2.330 km SE of Tres Pinos, California · 17291 days ago · 11 km deep · 47 km away
  19. 2.123 km ENE of Soledad, California · 17291 days ago · 0 km deep · 59 km away
  20. 2.023 km ENE of Soledad, California · 17290 days ago · 1 km deep · 55 km away
  21. 1.923 km ENE of Soledad, California · 17290 days ago · -1 km deep · 55 km away
  22. 3.123 km ENE of Soledad, California · 17290 days ago · 1 km deep · 55 km away
  23. 2.015 km E of East Foothills, California · 17289 days ago · 6 km deep · 59 km away
  24. 1.916 km SSE of Tres Pinos, California · 17288 days ago · 4 km deep · 42 km away
  25. 1.9Northern California · 17287 days ago · 5 km deep · 28 km away
  26. 1.89 km SE of Sunol, California · 17287 days ago · 5 km deep · 79 km away
  27. 1.722 km ENE of Soledad, California · 17286 days ago · 2 km deep · 56 km away
  28. 2.623 km ENE of Soledad, California · 17286 days ago · 2 km deep · 56 km away
  29. 1.924 km ENE of Soledad, California · 17286 days ago · 0 km deep · 54 km away
  30. 2.49 km SE of Sunol, California · 17285 days ago · 5 km deep · 79 km away
  31. 2.33 km E of Aromas, California · 17285 days ago · 2 km deep · 39 km away
  32. 1.524 km NE of Greenfield, California · 17285 days ago · 7 km deep · 61 km away
  33. 1.814 km N of Morgan Hill, California · 17285 days ago · 7 km deep · 48 km away
  34. 1.66 km SSE of Gilroy, California · 17284 days ago · 4 km deep · 30 km away
  35. 2.33 km W of San Juan Bautista, California · 17284 days ago · 6 km deep · 39 km away
  36. 2.523 km ENE of Soledad, California · 17284 days ago · 1 km deep · 55 km away
  37. 2.313 km ENE of Big Sur, California · 17284 days ago · 10 km deep · 90 km away
  38. 1.65 km WSW of Gilroy, California · 17281 days ago · 3 km deep · 38 km away
  39. 3.23 km S of San Juan Bautista, California · 17280 days ago · 6 km deep · 38 km away
  40. 2.23 km S of San Juan Bautista, California · 17280 days ago · 6 km deep · 38 km away
  41. 2.82 km S of San Juan Bautista, California · 17280 days ago · 6 km deep · 38 km away
  42. 1.82 km S of San Juan Bautista, California · 17280 days ago · 6 km deep · 38 km away
  43. 2.630 km W of Three Rocks, California · 17279 days ago · 8 km deep · 68 km away
  44. 1.620 km NE of Soledad, California · 17279 days ago · 0 km deep · 54 km away
  45. 2.516 km E of Seven Trees, California · 17278 days ago · 8 km deep · 50 km away
  46. 1.521 km NE of Soledad, California · 17278 days ago · 3 km deep · 50 km away
  47. 1.82 km ESE of Tres Pinos, California · 17278 days ago · 4 km deep · 28 km away
  48. 1.79 km E of Patterson, California · 17278 days ago · 9 km deep · 53 km away
  49. 2.18 km NE of Gilroy, California · 17277 days ago · 6 km deep · 28 km away
  50. 2.524 km NE of Greenfield, California · 17275 days ago · 7 km deep · 62 km away
  51. 2.816 km E of Seven Trees, California · 17273 days ago · 7 km deep · 51 km away
  52. 1.915 km E of Seven Trees, California · 17273 days ago · 6 km deep · 52 km away
  53. 2.311 km ESE of Sunol, California · 17273 days ago · 7 km deep · 78 km away
  54. 2.122 km ENE of Soledad, California · 17272 days ago · 5 km deep · 55 km away
  55. 2.621 km NE of Soledad, California · 17272 days ago · 6 km deep · 52 km away
  56. 1.721 km NE of Soledad, California · 17272 days ago · 6 km deep · 53 km away
  57. 2.47 km N of Hollister, California · 17272 days ago · 8 km deep · 22 km away
  58. 1.54 km SSE of San Juan Bautista, California · 17271 days ago · 5 km deep · 37 km away
  59. 1.57 km E of East Foothills, California · 17271 days ago · 5 km deep · 62 km away
  60. 2.44 km SSE of San Juan Bautista, California · 17270 days ago · 6 km deep · 37 km away

The first 60 of 129.

Before

  1. 1.89 km S of Tres Pinos, California · 17301 days ago · 2 km deep · 37 km away
  2. 3.110 km WSW of Three Rocks, California · 17301 days ago · 5 km deep · 87 km away
  3. 2.05 km SE of Aromas, California · 17302 days ago · 6 km deep · 39 km away
  4. 1.825 km NNE of King City, California · 17303 days ago · 1 km deep · 71 km away
  5. 1.612 km SW of Tres Pinos, California · 17303 days ago · 9 km deep · 40 km away
  6. 2.59 km S of Tres Pinos, California · 17303 days ago · 4 km deep · 37 km away
  7. 1.614 km E of Seven Trees, California · 17304 days ago · 5 km deep · 53 km away
  8. 2.110 km WSW of Ridgemark, California · 17305 days ago · 7 km deep · 37 km away
  9. 1.69 km S of Tres Pinos, California · 17306 days ago · 2 km deep · 37 km away
  10. 1.82 km S of Hollister, California · 17307 days ago · 5 km deep · 28 km away
  11. 1.723 km ENE of Soledad, California · 17307 days ago · 6 km deep · 60 km away
  12. 1.511 km S of Tres Pinos, California · 17308 days ago · 4 km deep · 38 km away
  13. 1.625 km NE of Soledad, California · 17308 days ago · 8 km deep · 50 km away
  14. 3.09 km SE of San Juan Bautista, California · 17308 days ago · 4 km deep · 37 km away
  15. 1.616 km SSE of Tres Pinos, California · 17308 days ago · 5 km deep · 42 km away
  16. 1.97 km E of Gilroy, California · 17310 days ago · 5 km deep · 25 km away
  17. 1.911 km S of Tres Pinos, California · 17310 days ago · 4 km deep · 38 km away
  18. 1.75 km SSW of Tres Pinos, California · 17310 days ago · 7 km deep · 33 km away
  19. 1.730 km SW of South Dos Palos, California · 17311 days ago · 2 km deep · 40 km away
  20. 1.515 km ESE of Tres Pinos, California · 17311 days ago · 8 km deep · 34 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1045877. Read Wed, Sep 30, 2026, 12:47 AM UTC.