California earthquakes

M2.4 earthquake 35 km W of Three Rocks, California

A magnitude 2.4 earthquake struck 35 km W of Three Rocks, California on Sat, May 27, 1978, 8:08 AM PDT (15:08 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.6 Central 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
1978-05-27 15:08:46 UTC
Depth
3.1 km (1.9 mi), shallow
Epicenter
36.549° N, 120.784° 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, 1.2 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
176°
Stations used
19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 106 in the 60 days after this one and 62 in the 30 days before it.

After

  1. 1.514 km SSE of Tres Pinos, California · 17656 days ago · 3 km deep · 46 km away
  2. 2.8Central California · 17656 days ago · 3 km deep · 47 km away
  3. 2.113 km SSE of Tres Pinos, California · 17656 days ago · 4 km deep · 46 km away
  4. 1.713 km SSE of Tres Pinos, California · 17656 days ago · 4 km deep · 47 km away
  5. 2.015 km SSE of Tres Pinos, California · 17655 days ago · 4 km deep · 45 km away
  6. 1.815 km SSE of Tres Pinos, California · 17655 days ago · 4 km deep · 45 km away
  7. 1.916 km SSE of Tres Pinos, California · 17655 days ago · 5 km deep · 45 km away
  8. 2.6Central California · 17655 days ago · 9 km deep · 26 km away
  9. 3.6Central California · 17654 days ago · 9 km deep · 44 km away
  10. 2.221 km NNE of Soledad, California · 17653 days ago · 8 km deep · 37 km away
  11. 2.415 km SSE of Tres Pinos, California · 17652 days ago · 3 km deep · 45 km away
  12. 1.86 km N of Greenfield, California · 17652 days ago · 3 km deep · 45 km away
  13. 3.114 km SSE of Tres Pinos, California · 17651 days ago · 3 km deep · 46 km away
  14. 2.314 km SSE of Tres Pinos, California · 17651 days ago · 4 km deep · 46 km away
  15. 2.214 km SSE of Tres Pinos, California · 17651 days ago · 4 km deep · 46 km away
  16. 2.316 km SSE of Tres Pinos, California · 17650 days ago · 5 km deep · 45 km away
  17. 1.924 km NE of Greenfield, California · 17650 days ago · 5 km deep · 26 km away
  18. 2.523 km NE of King City, California · 17650 days ago · 8 km deep · 25 km away
  19. 1.613 km SSE of Tres Pinos, California · 17650 days ago · 4 km deep · 47 km away
  20. 2.027 km NE of Soledad, California · 17649 days ago · 9 km deep · 26 km away
  21. 2.113 km S of Tres Pinos, California · 17649 days ago · 3 km deep · 48 km away
  22. 2.731 km ENE of San Lucas, California · 17649 days ago · 9 km deep · 32 km away
  23. 1.78 km SE of San Juan Bautista, California · 17648 days ago · 4 km deep · 68 km away
  24. 1.621 km NW of Parkfield, California · 17648 days ago · 2 km deep · 59 km away
  25. 1.616 km NW of Parkfield, California · 17647 days ago · 4 km deep · 64 km away
  26. 1.85 km WSW of Gilroy, California · 17646 days ago · 7 km deep · 89 km away
  27. 1.814 km SSE of Tres Pinos, California · 17646 days ago · 3 km deep · 46 km away
  28. 1.622 km NE of San Lucas, California · 17645 days ago · 6 km deep · 29 km away
  29. 1.74 km ESE of Aromas, California · 17645 days ago · 6 km deep · 81 km away
  30. 1.621 km NE of Soledad, California · 17644 days ago · 9 km deep · 33 km away
  31. 1.912 km S of Tres Pinos, California · 17644 days ago · 3 km deep · 48 km away
  32. 2.124 km ENE of Soledad, California · 17644 days ago · 3 km deep · 26 km away
  33. 1.821 km NE of Soledad, California · 17643 days ago · 7 km deep · 32 km away
  34. 2.423 km NW of Parkfield, California · 17642 days ago · 5 km deep · 57 km away
  35. 2.423 km NW of Parkfield, California · 17642 days ago · 6 km deep · 57 km away
  36. 1.713 km SSE of Tres Pinos, California · 17642 days ago · 4 km deep · 47 km away
  37. 2.124 km ENE of Greenfield, California · 17641 days ago · 6 km deep · 24 km away
  38. 1.614 km SSE of Tres Pinos, California · 17639 days ago · 4 km deep · 47 km away
  39. 1.96 km WSW of Gilroy, California · 17639 days ago · 4 km deep · 90 km away
  40. 1.612 km ENE of Salinas, California · 17639 days ago · -1 km deep · 68 km away
  41. 1.52 km S of Hollister, California · 17637 days ago · 8 km deep · 64 km away
  42. 1.89 km ESE of Gilroy, California · 17637 days ago · 3 km deep · 77 km away
  43. 1.921 km NE of Soledad, California · 17637 days ago · 5 km deep · 35 km away
  44. 2.233 km ENE of Soledad, California · 17637 days ago · 17 km deep · 17 km away
  45. 2.024 km ENE of Greenfield, California · 17636 days ago · 6 km deep · 24 km away
  46. 1.622 km SSE of Tres Pinos, California · 17635 days ago · 5 km deep · 36 km away
  47. 2.02 km SE of San Ardo, California · 17635 days ago · 13 km deep · 61 km away
  48. 2.211 km S of Tres Pinos, California · 17634 days ago · 3 km deep · 50 km away
  49. 2.5Central California · 17631 days ago · 9 km deep · 77 km away
  50. 3.011 km ESE of Gilroy, California · 17631 days ago · 5 km deep · 75 km away
  51. 2.011 km ESE of Gilroy, California · 17630 days ago · 5 km deep · 75 km away
  52. 1.811 km ESE of Gilroy, California · 17630 days ago · 5 km deep · 75 km away
  53. 2.210 km SW of Ridgemark, California · 17630 days ago · 7 km deep · 65 km away
  54. 1.74 km NW of Parkfield, California · 17629 days ago · 5 km deep · 75 km away
  55. 1.62 km WSW of San Juan Bautista, California · 17628 days ago · 3 km deep · 77 km away
  56. 1.6Central California · 17628 days ago · 7 km deep · 64 km away
  57. 1.611 km SW of Ridgemark, California · 17628 days ago · 7 km deep · 65 km away
  58. 2.911 km ESE of Gilroy, California · 17628 days ago · 5 km deep · 75 km away
  59. 1.5Central California · 17628 days ago · 4 km deep · 6 km away
  60. 1.813 km SSE of Parkfield, California · 17628 days ago · 9 km deep · 93 km away

The first 60 of 106.

Before

  1. 1.713 km SSE of Tres Pinos, California · 17656 days ago · 3 km deep · 47 km away
  2. 1.814 km SSE of Tres Pinos, California · 17657 days ago · 3 km deep · 46 km away
  3. 2.422 km ENE of Soledad, California · 17657 days ago · 2 km deep · 30 km away
  4. 1.826 km NE of Greenfield, California · 17658 days ago · 6 km deep · 24 km away
  5. 1.614 km SSE of Tres Pinos, California · 17658 days ago · 3 km deep · 46 km away
  6. 1.713 km SSE of Tres Pinos, California · 17658 days ago · 4 km deep · 46 km away
  7. 1.51 km WNW of Hollister, California · 17658 days ago · 4 km deep · 67 km away
  8. 1.814 km SSE of Tres Pinos, California · 17659 days ago · 3 km deep · 46 km away
  9. 2.09 km NE of San Juan Bautista, California · 17659 days ago · 4 km deep · 74 km away
  10. 1.614 km SSE of Tres Pinos, California · 17659 days ago · 3 km deep · 46 km away
  11. 2.013 km SSE of Tres Pinos, California · 17660 days ago · 4 km deep · 46 km away
  12. 1.58 km E of Gilroy, California · 17660 days ago · 4 km deep · 80 km away
  13. 2.214 km SSE of Tres Pinos, California · 17660 days ago · 4 km deep · 46 km away
  14. 1.813 km SSE of Tres Pinos, California · 17660 days ago · 3 km deep · 46 km away
  15. 2.314 km SSE of Tres Pinos, California · 17660 days ago · 3 km deep · 46 km away
  16. 1.914 km SSE of Tres Pinos, California · 17661 days ago · 3 km deep · 46 km away
  17. 1.714 km SSE of Tres Pinos, California · 17661 days ago · 3 km deep · 46 km away
  18. 1.614 km SSE of Tres Pinos, California · 17661 days ago · 3 km deep · 46 km away
  19. 1.914 km SSE of Tres Pinos, California · 17661 days ago · 3 km deep · 47 km away
  20. 1.614 km SSE of Tres Pinos, California · 17661 days ago · 3 km deep · 46 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1040433. Read Mon, Sep 28, 2026, 8:21 PM UTC.