California earthquakes

M1.8 earthquake 23 km WSW of Volta, California

A magnitude 1.8 earthquake struck 23 km WSW of Volta, California on Fri, Apr 29, 1977, 11:00 AM PDT (18:00 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M4.4 10 km ESE of Livermore, 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
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1977-04-29 18:00:31 UTC
Depth
3.4 km (2.1 mi), shallow
Epicenter
36.998° N, 121.163° 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, 2.0 km in depth
Magnitude uncertainty
±0.19
Depth from
From location
Station coverage gap
225°, poorly surrounded by stations
Stations used
31

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 127 in the 60 days after this one and 119 in the 30 days before it.

After

  1. 2.37 km NE of Patterson, California · 18053 days ago · 9 km deep · 58 km away
  2. 1.5Northern California · 18053 days ago · 7 km deep · 86 km away
  3. 2.524 km NE of Greenfield, California · 18052 days ago · 7 km deep · 59 km away
  4. 1.621 km NE of Soledad, California · 18052 days ago · 4 km deep · 46 km away
  5. 1.723 km ENE of Soledad, California · 18052 days ago · 6 km deep · 57 km away
  6. 2.924 km ENE of Soledad, California · 18052 days ago · 3 km deep · 56 km away
  7. 1.723 km ENE of Soledad, California · 18051 days ago · 3 km deep · 56 km away
  8. 2.133 km SW of South Dos Palos, California · 18051 days ago · 2 km deep · 36 km away
  9. 1.731 km NE of Soledad, California · 18051 days ago · 12 km deep · 45 km away
  10. 2.57 km NE of San Juan Bautista, California · 18051 days ago · 5 km deep · 31 km away
  11. 1.925 km ENE of Soledad, California · 18050 days ago · 8 km deep · 51 km away
  12. 1.75 km ESE of Tres Pinos, California · 18050 days ago · 7 km deep · 28 km away
  13. 1.59 km NNE of San Juan Bautista, California · 18049 days ago · 3 km deep · 30 km away
  14. 2.527 km ENE of Soledad, California · 18048 days ago · 5 km deep · 51 km away
  15. 2.42 km ESE of Tres Pinos, California · 18048 days ago · 10 km deep · 27 km away
  16. 2.525 km NE of Greenfield, California · 18048 days ago · 4 km deep · 59 km away
  17. 3.216 km W of Three Rocks, California · 18048 days ago · 15 km deep · 75 km away
  18. 1.619 km SSE of Tres Pinos, California · 18048 days ago · 5 km deep · 42 km away
  19. 1.627 km ENE of Soledad, California · 18048 days ago · 6 km deep · 51 km away
  20. 2.324 km NE of Greenfield, California · 18048 days ago · 1 km deep · 59 km away
  21. 2.214 km SSE of Tres Pinos, California · 18047 days ago · 4 km deep · 39 km away
  22. 2.515 km SSE of Tres Pinos, California · 18047 days ago · 8 km deep · 40 km away
  23. 1.82 km E of Scotts Valley, California · 18047 days ago · 8 km deep · 74 km away
  24. 1.72 km E of Tres Pinos, California · 18045 days ago · 8 km deep · 26 km away
  25. 1.75 km SSW of Tres Pinos, California · 18044 days ago · 7 km deep · 33 km away
  26. 2.329 km ENE of Soledad, California · 18044 days ago · 7 km deep · 49 km away
  27. 2.136 km W of Three Rocks, California · 18042 days ago · 3 km deep · 60 km away
  28. 2.429 km ENE of Soledad, California · 18041 days ago · 7 km deep · 49 km away
  29. 1.610 km N of Morgan Hill, California · 18040 days ago · 6 km deep · 50 km away
  30. 1.821 km NE of Soledad, California · 18038 days ago · 3 km deep · 49 km away
  31. 1.620 km ESE of Tres Pinos, California · 18038 days ago · 0 km deep · 34 km away
  32. 2.02 km WSW of San Juan Bautista, California · 18038 days ago · 6 km deep · 40 km away
  33. 2.312 km NNW of Hollister, California · 18036 days ago · 5 km deep · 26 km away
  34. 2.16 km N of East Foothills, California · 18035 days ago · 5 km deep · 75 km away
  35. 2.323 km NE of Greenfield, California · 18035 days ago · 7 km deep · 60 km away
  36. 1.711 km ESE of Gilroy, California · 18035 days ago · 5 km deep · 26 km away
  37. 2.125 km NE of Soledad, California · 18035 days ago · 5 km deep · 50 km away
  38. 1.911 km NNW of Hollister, California · 18035 days ago · 4 km deep · 26 km away
  39. 1.624 km NE of Greenfield, California · 18034 days ago · 7 km deep · 61 km away
  40. 2.17 km W of Gilroy, California · 18034 days ago · 5 km deep · 44 km away
  41. 2.37 km SSW of Tres Pinos, California · 18034 days ago · 7 km deep · 35 km away
  42. 1.67 km NNE of Hollister, California · 18033 days ago · 6 km deep · 20 km away
  43. 1.725 km NE of Soledad, California · 18033 days ago · 7 km deep · 49 km away
  44. 2.414 km S of Tres Pinos, California · 18032 days ago · 8 km deep · 39 km away
  45. 2.030 km NE of San Lucas, California · 18031 days ago · 11 km deep · 85 km away
  46. 2.12 km SSW of Hollister, California · 18031 days ago · 5 km deep · 29 km away
  47. 2.4Central California · 18030 days ago · 7 km deep · 42 km away
  48. 1.67 km WSW of Gilroy, California · 18030 days ago · 4 km deep · 43 km away
  49. 1.733 km SW of South Dos Palos, California · 18030 days ago · 8 km deep · 36 km away
  50. 1.79 km NNE of East Foothills, California · 18030 days ago · 8 km deep · 74 km away
  51. 2.27 km NE of Hollister, California · 18028 days ago · 5 km deep · 20 km away
  52. 1.86 km NE of Hollister, California · 18027 days ago · 5 km deep · 20 km away
  53. 2.121 km NE of Soledad, California · 18027 days ago · 4 km deep · 46 km away
  54. 2.023 km NE of San Ardo, California · 18027 days ago · 7 km deep · 97 km away
  55. 3.013 km S of Tres Pinos, California · 18024 days ago · 5 km deep · 38 km away
  56. 1.521 km ENE of San Lucas, California · 18024 days ago · 8 km deep · 90 km away
  57. 1.66 km NNE of Interlaken, California · 18024 days ago · 6 km deep · 48 km away
  58. 1.78 km NE of San Juan Bautista, California · 18023 days ago · 5 km deep · 30 km away
  59. 2.40 km E of Aromas, California · 18023 days ago · 9 km deep · 44 km away
  60. 1.55 km SSW of Tres Pinos, California · 18023 days ago · 7 km deep · 33 km away

The first 60 of 127.

Before

  1. 2.113 km E of East Foothills, California · 18053 days ago · 8 km deep · 60 km away
  2. 1.77 km NE of San Juan Bautista, California · 18053 days ago · 5 km deep · 31 km away
  3. 1.623 km NE of Soledad, California · 18053 days ago · 8 km deep · 47 km away
  4. 1.65 km SE of Tres Pinos, California · 18054 days ago · 7 km deep · 28 km away
  5. 2.110 km NNW of Hollister, California · 18054 days ago · 3 km deep · 28 km away
  6. 1.55 km SSW of Tres Pinos, California · 18055 days ago · 9 km deep · 32 km away
  7. 1.97 km ESE of Fremont, California · 18055 days ago · 0 km deep · 88 km away
  8. 1.722 km NE of San Lucas, California · 18055 days ago · 5 km deep · 82 km away
  9. 2.217 km SE of Carmel Valley Village, California · 18055 days ago · 10 km deep · 81 km away
  10. 2.125 km NNE of King City, California · 18055 days ago · 2 km deep · 68 km away
  11. 1.813 km ENE of San Martin, California · 18056 days ago · 2 km deep · 31 km away
  12. 1.813 km E of East Foothills, California · 18056 days ago · 8 km deep · 60 km away
  13. 1.916 km E of Tres Pinos, California · 18056 days ago · 4 km deep · 21 km away
  14. 1.76 km ENE of Interlaken, California · 18056 days ago · 9 km deep · 45 km away
  15. 2.226 km W of Three Rocks, California · 18057 days ago · 11 km deep · 73 km away
  16. 1.714 km N of Morgan Hill, California · 18057 days ago · 4 km deep · 52 km away
  17. 1.810 km NNW of Hollister, California · 18058 days ago · 9 km deep · 24 km away
  18. 1.714 km SSE of Tres Pinos, California · 18060 days ago · 8 km deep · 39 km away
  19. 2.515 km SSE of Tres Pinos, California · 18061 days ago · 7 km deep · 40 km away
  20. 1.914 km S of Tres Pinos, California · 18061 days ago · 8 km deep · 39 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1034979. Read Fri, Oct 2, 2026, 2:52 PM UTC.