California earthquakes

M2.1 earthquake Central California

A magnitude 2.1 earthquake struck in Central California on Sun, Jan 1, 1978, 9:48 AM PST (17:48 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M3.4 21 km NNE of Soledad, California. This one was a foreshock.

Ridgemark 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
2.1 (md), micro
Local time
UTC
1978-01-01 17:48:51 UTC
Depth
3.6 km (2.3 mi), shallow
Epicenter
36.844° N, 121.073° 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, 1.1 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
93°
Stations used
55

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 132 in the 60 days after this one and 92 in the 30 days before it.

After

  1. 2.022 km ENE of Tres Pinos, California · 17803 days ago · 6 km deep · 0 km away
  2. 3.1Central California · 17803 days ago · 9 km deep · 31 km away
  3. 2.127 km ENE of Soledad, California · 17803 days ago · 9 km deep · 31 km away
  4. 1.812 km SW of Tres Pinos, California · 17802 days ago · 8 km deep · 34 km away
  5. 1.621 km NNE of Soledad, California · 17802 days ago · 4 km deep · 30 km away
  6. 2.53 km S of San Juan Bautista, California · 17802 days ago · 7 km deep · 41 km away
  7. 2.54 km SW of Tres Pinos, California · 17801 days ago · 13 km deep · 27 km away
  8. 1.624 km NE of Greenfield, California · 17801 days ago · 5 km deep · 40 km away
  9. 1.821 km NE of Soledad, California · 17801 days ago · 7 km deep · 31 km away
  10. 1.68 km SSW of Ridgemark, California · 17800 days ago · 6 km deep · 32 km away
  11. 3.010 km NNW of Hollister, California · 17799 days ago · 2 km deep · 35 km away
  12. 1.626 km NE of Soledad, California · 17799 days ago · 8 km deep · 30 km away
  13. 1.823 km NE of San Lucas, California · 17799 days ago · 6 km deep · 64 km away
  14. 1.812 km SW of Tres Pinos, California · 17798 days ago · 8 km deep · 34 km away
  15. 3.112 km SW of Tres Pinos, California · 17798 days ago · 9 km deep · 34 km away
  16. 1.612 km SW of Tres Pinos, California · 17798 days ago · 9 km deep · 34 km away
  17. 3.026 km NE of Greenfield, California · 17798 days ago · 8 km deep · 42 km away
  18. 1.922 km NE of San Lucas, California · 17798 days ago · 7 km deep · 67 km away
  19. 1.84 km W of Ridgemark, California · 17797 days ago · 3 km deep · 31 km away
  20. 2.014 km E of Tres Pinos, California · 17797 days ago · 5 km deep · 11 km away
  21. 1.614 km E of Seven Trees, California · 17796 days ago · 2 km deep · 73 km away
  22. 2.318 km SSW of Three Rocks, California · 17795 days ago · 9 km deep · 78 km away
  23. 1.99 km NE of San Juan Bautista, California · 17795 days ago · 3 km deep · 37 km away
  24. 3.014 km SSE of Tres Pinos, California · 17794 days ago · 3 km deep · 27 km away
  25. 1.821 km NE of Soledad, California · 17793 days ago · 6 km deep · 34 km away
  26. 1.621 km NE of Soledad, California · 17793 days ago · 3 km deep · 31 km away
  27. 2.65 km NE of Amesti, California · 17792 days ago · 12 km deep · 62 km away
  28. 2.224 km ENE of San Ardo, California · 17791 days ago · 0 km deep · 92 km away
  29. 1.88 km SSW of Ridgemark, California · 17791 days ago · 6 km deep · 32 km away
  30. 2.722 km ENE of Soledad, California · 17790 days ago · 3 km deep · 35 km away
  31. 1.62 km SSW of San Juan Bautista, California · 17790 days ago · 4 km deep · 42 km away
  32. 1.522 km ENE of Soledad, California · 17789 days ago · 1 km deep · 36 km away
  33. 3.421 km NNE of Soledad, California · 17789 days ago · 6 km deep · 30 km away
  34. 2.421 km NE of Soledad, California · 17789 days ago · 6 km deep · 30 km away
  35. 1.721 km NNE of Soledad, California · 17789 days ago · 6 km deep · 30 km away
  36. 2.05 km SSW of Tres Pinos, California · 17789 days ago · 8 km deep · 26 km away
  37. 2.422 km NE of Soledad, California · 17787 days ago · 6 km deep · 30 km away
  38. 1.915 km S of Tres Pinos, California · 17787 days ago · 10 km deep · 32 km away
  39. 2.322 km ENE of Tres Pinos, California · 17787 days ago · 5 km deep · 0 km away
  40. 2.45 km SW of Gilroy, California · 17787 days ago · 7 km deep · 50 km away
  41. 1.824 km NE of Greenfield, California · 17785 days ago · 0 km deep · 44 km away
  42. 2.17 km SSE of Gilroy, California · 17784 days ago · 5 km deep · 43 km away
  43. 1.921 km SW of Diablo Grande, California · 17783 days ago · 7 km deep · 61 km away
  44. 2.03 km W of San Juan Bautista, California · 17783 days ago · 6 km deep · 45 km away
  45. 1.524 km ENE of Soledad, California · 17783 days ago · 3 km deep · 38 km away
  46. 2.826 km NE of Soledad, California · 17782 days ago · 9 km deep · 31 km away
  47. 1.626 km NE of Soledad, California · 17782 days ago · 9 km deep · 32 km away
  48. 1.621 km NE of Soledad, California · 17781 days ago · 4 km deep · 34 km away
  49. 1.815 km SW of Soledad, California · 17781 days ago · 13 km deep · 67 km away
  50. 2.225 km SE of Tres Pinos, California · 17781 days ago · 10 km deep · 22 km away
  51. 1.914 km WSW of Coalinga, California · 17780 days ago · 3 km deep · 99 km away
  52. 1.915 km SW of Soledad, California · 17780 days ago · 11 km deep · 67 km away
  53. 1.628 km ENE of Soledad, California · 17780 days ago · 10 km deep · 31 km away
  54. 1.817 km SW of Soledad, California · 17780 days ago · 15 km deep · 69 km away
  55. 1.58 km NE of Gilroy, California · 17780 days ago · 10 km deep · 44 km away
  56. 2.25 km NE of San Juan Bautista, California · 17777 days ago · 4 km deep · 37 km away
  57. 2.023 km NE of San Ardo, California · 17776 days ago · 7 km deep · 78 km away
  58. 1.74 km SSE of San Juan Bautista, California · 17776 days ago · 5 km deep · 41 km away
  59. 1.618 km SSE of Tres Pinos, California · 17776 days ago · 7 km deep · 28 km away
  60. 1.89 km ESE of Gilroy, California · 17775 days ago · 5 km deep · 38 km away

The first 60 of 132.

Before

  1. 2.6Central California · 17803 days ago · 6 km deep · 31 km away
  2. 2.312 km SW of Tres Pinos, California · 17803 days ago · 9 km deep · 34 km away
  3. 1.84 km NE of Interlaken, California · 17803 days ago · 12 km deep · 58 km away
  4. 2.45 km NW of Kerman, California · 17803 days ago · -1 km deep · 87 km away
  5. 1.9Central California · 17803 days ago · 8 km deep · 24 km away
  6. 1.623 km NE of Greenfield, California · 17803 days ago · 1 km deep · 42 km away
  7. 1.6Central California · 17803 days ago · 8 km deep · 34 km away
  8. 1.619 km ENE of Big Sur, California · 17804 days ago · 7 km deep · 75 km away
  9. 1.91 km ESE of Tres Pinos, California · 17804 days ago · 7 km deep · 22 km away
  10. 3.39 km NNW of Hollister, California · 17804 days ago · 2 km deep · 34 km away
  11. 2.621 km NE of Soledad, California · 17804 days ago · 7 km deep · 30 km away
  12. 2.96km SSE of Biola, CA · 17804 days ago · 6 km deep · 97 km away
  13. 1.612 km SW of Tres Pinos, California · 17805 days ago · 9 km deep · 34 km away
  14. 2.322 km NE of San Lucas, California · 17805 days ago · 6 km deep · 67 km away
  15. 2.04 km ESE of Aromas, California · 17805 days ago · 6 km deep · 47 km away
  16. 3.14 km N of Biola, California · 17806 days ago · 7 km deep · 94 km away
  17. 3.54 km NNW of Biola, California · 17806 days ago · 7 km deep · 93 km away
  18. 2.36 km ESE of East Foothills, California · 17806 days ago · 2 km deep · 83 km away
  19. 2.211 km S of Tres Pinos, California · 17806 days ago · 4 km deep · 28 km away
  20. 1.912 km SW of Tres Pinos, California · 17807 days ago · 9 km deep · 34 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1038426. Read Tue, Sep 29, 2026, 3:16 PM UTC.