California earthquakes

M2.4 earthquake Central California

A magnitude 2.4 earthquake struck in Central California on Tue, Feb 28, 1978, 2:13 AM PST (10:13 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M2.7 23 km ENE of San Lucas, 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
2.4 (md), micro
Local time
UTC
1978-02-28 10:13:46 UTC
Depth
7.5 km (4.7 mi), shallow
Epicenter
36.481° N, 121.060° 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, 0.7 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
62°
Stations used
40

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 93 in the 60 days after this one and 79 in the 30 days before it.

After

  1. 2.723 km ENE of San Lucas, California · 17738 days ago · 8 km deep · 39 km away
  2. 2.42 km WSW of San Juan Bautista, California · 17738 days ago · 7 km deep · 60 km away
  3. 2.612 km NW of Avenal, California · 17738 days ago · 9 km deep · 87 km away
  4. 2.011 km NW of Avenal, California · 17737 days ago · 9 km deep · 87 km away
  5. 2.50 km SW of Parkfield, California · 17737 days ago · 6 km deep · 86 km away
  6. 2.17 km NE of San Martin, California · 17737 days ago · 1 km deep · 86 km away
  7. 1.621 km NE of Soledad, California · 17736 days ago · 4 km deep · 15 km away
  8. 2.422 km ENE of Soledad, California · 17734 days ago · 4 km deep · 5 km away
  9. 2.622 km ENE of Soledad, California · 17734 days ago · 5 km deep · 5 km away
  10. 1.922 km ENE of Soledad, California · 17734 days ago · 5 km deep · 4 km away
  11. 1.631 km NE of Soledad, California · 17734 days ago · 6 km deep · 12 km away
  12. 1.921 km NE of Soledad, California · 17734 days ago · 7 km deep · 16 km away
  13. 1.624 km NE of Greenfield, California · 17733 days ago · 5 km deep · 6 km away
  14. 1.88 km SSE of San Juan Bautista, California · 17732 days ago · 7 km deep · 51 km away
  15. 2.60 km SSW of Parkfield, California · 17732 days ago · 7 km deep · 86 km away
  16. 2.4Central California · 17732 days ago · 7 km deep · 86 km away
  17. 2.211 km S of Tres Pinos, California · 17731 days ago · 3 km deep · 32 km away
  18. 1.923 km NW of Parkfield, California · 17731 days ago · 6 km deep · 62 km away
  19. 1.922 km ENE of Soledad, California · 17729 days ago · 4 km deep · 7 km away
  20. 2.222 km ENE of Soledad, California · 17729 days ago · 4 km deep · 7 km away
  21. 2.124 km ENE of Soledad, California · 17728 days ago · 2 km deep · 2 km away
  22. 1.64 km SW of Ridgemark, California · 17728 days ago · 7 km deep · 46 km away
  23. 2.57 km NE of Interlaken, California · 17727 days ago · 11 km deep · 79 km away
  24. 1.523 km ENE of Soledad, California · 17727 days ago · 4 km deep · 4 km away
  25. 1.627 km NE of Soledad, California · 17727 days ago · 5 km deep · 13 km away
  26. 2.624 km NE of Greenfield, California · 17726 days ago · 2 km deep · 1 km away
  27. 1.724 km NE of Greenfield, California · 17725 days ago · 5 km deep · 2 km away
  28. 1.916 km NW of Parkfield, California · 17725 days ago · 4 km deep · 70 km away
  29. 2.824 km NE of Greenfield, California · 17724 days ago · 3 km deep · 2 km away
  30. 1.724 km NE of Greenfield, California · 17724 days ago · 3 km deep · 2 km away
  31. 1.99 km NW of Whitley Gardens, California · 17722 days ago · 9 km deep · 95 km away
  32. 2.16 km NE of Ridgemark, California · 17722 days ago · 6 km deep · 48 km away
  33. 1.925 km ENE of Greenfield, California · 17722 days ago · 6 km deep · 8 km away
  34. 1.724 km NE of Greenfield, California · 17719 days ago · 5 km deep · 2 km away
  35. 2.021 km NW of Parkfield, California · 17718 days ago · 4 km deep · 65 km away
  36. 2.06 km SE of Tres Pinos, California · 17716 days ago · 10 km deep · 35 km away
  37. 1.822 km NNE of Soledad, California · 17715 days ago · 5 km deep · 17 km away
  38. 1.924 km NE of Greenfield, California · 17715 days ago · 5 km deep · 3 km away
  39. 2.85 km SW of Gilroy, California · 17714 days ago · 4 km deep · 73 km away
  40. 1.79 km E of San Miguel, California · 17714 days ago · 3 km deep · 91 km away
  41. 1.717 km NW of Parkfield, California · 17713 days ago · 4 km deep · 68 km away
  42. 1.722 km NW of Parkfield, California · 17712 days ago · 2 km deep · 63 km away
  43. 2.54 km SE of Aromas, California · 17711 days ago · 8 km deep · 64 km away
  44. 2.16 km NNE of Ridgemark, California · 17711 days ago · 6 km deep · 49 km away
  45. 3.04 km SE of Aromas, California · 17711 days ago · 8 km deep · 64 km away
  46. 1.65 km WNW of San Juan Bautista, California · 17711 days ago · 7 km deep · 64 km away
  47. 2.84 km SE of Aromas, California · 17711 days ago · 8 km deep · 64 km away
  48. 2.75 km WNW of San Juan Bautista, California · 17710 days ago · 8 km deep · 63 km away
  49. 1.923 km ENE of Soledad, California · 17709 days ago · 3 km deep · 4 km away
  50. 2.126 km ENE of Soledad, California · 17708 days ago · 9 km deep · 8 km away
  51. 1.56 km E of Hollister, California · 17708 days ago · 5 km deep · 49 km away
  52. 1.624 km NE of Greenfield, California · 17708 days ago · 4 km deep · 0 km away
  53. 2.1Central California · 17707 days ago · 4 km deep · 30 km away
  54. 2.112 km SSE of Tres Pinos, California · 17707 days ago · 5 km deep · 30 km away
  55. 2.137 km W of Lockwood, California · 17707 days ago · 17 km deep · 66 km away
  56. 1.939 km W of Lockwood, California · 17707 days ago · 13 km deep · 71 km away
  57. 2.124 km NE of Greenfield, California · 17706 days ago · 5 km deep · 2 km away
  58. 1.610 km NNE of San Juan Bautista, California · 17705 days ago · 0 km deep · 62 km away
  59. 2.426 km NE of Soledad, California · 17705 days ago · 9 km deep · 13 km away
  60. 2.022 km NE of Soledad, California · 17703 days ago · 2 km deep · 9 km away

The first 60 of 93.

Before

  1. 1.7Central California · 17739 days ago · 5 km deep · 60 km away
  2. 2.0Central California · 17739 days ago · 7 km deep · 59 km away
  3. 1.7Central California · 17740 days ago · 11 km deep · 37 km away
  4. 1.61 km ENE of Hollister, California · 17741 days ago · 8 km deep · 51 km away
  5. 2.51 km NE of Hollister, California · 17741 days ago · 8 km deep · 51 km away
  6. 2.015 km NW of Parkfield, California · 17742 days ago · 5 km deep · 70 km away
  7. 1.737 km SSW of South Dos Palos, California · 17742 days ago · 6 km deep · 27 km away
  8. 1.737 km SSW of South Dos Palos, California · 17742 days ago · 7 km deep · 28 km away
  9. 2.78 km SSE of San Juan Bautista, California · 17742 days ago · 7 km deep · 51 km away
  10. 2.423 km NNE of San Lucas, California · 17743 days ago · 5 km deep · 25 km away
  11. 1.54 km SE of Tres Pinos, California · 17743 days ago · 8 km deep · 37 km away
  12. 2.827 km W of Three Rocks, California · 17744 days ago · 8 km deep · 32 km away
  13. 1.722 km NE of San Ardo, California · 17744 days ago · 7 km deep · 43 km away
  14. 1.625 km SE of Tres Pinos, California · 17745 days ago · 7 km deep · 16 km away
  15. 1.821 km NNE of Soledad, California · 17745 days ago · 8 km deep · 17 km away
  16. 1.65 km SSE of Parkfield, California · 17745 days ago · 4 km deep · 91 km away
  17. 1.84 km N of Morgan Hill, California · 17745 days ago · 5 km deep · 93 km away
  18. 2.44 km N of Morgan Hill, California · 17745 days ago · 6 km deep · 93 km away
  19. 3.110 km NNE of Cambria, California · 17746 days ago · 12 km deep · 92 km away
  20. 1.97 km SE of Parkfield, California · 17746 days ago · 5 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1039115. Read Tue, Sep 22, 2026, 10:23 PM UTC.