California earthquakes

M3.6 earthquake Central California

A magnitude 3.6 earthquake struck in Central California on Mon, May 29, 1978, 10:20 PM PDT (05:20 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M4.2 12 km S of Davenport, 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.

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The earthquake

Magnitude
3.6 (md), minor
Local time
UTC
1978-05-30 05:20:54 UTC
Depth
9.5 km (5.9 mi), shallow
Epicenter
36.639° N, 121.260° 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, 0.4 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
59°
Stations used
49

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 116 in the 60 days after this one and 115 in the 30 days before it.

After

  1. 2.221 km NNE of Soledad, California · 17653 days ago · 8 km deep · 8 km away
  2. 2.415 km SSE of Tres Pinos, California · 17652 days ago · 3 km deep · 3 km away
  3. 1.86 km N of Greenfield, California · 17652 days ago · 3 km deep · 29 km away
  4. 3.114 km SSE of Tres Pinos, California · 17651 days ago · 3 km deep · 3 km away
  5. 2.314 km SSE of Tres Pinos, California · 17651 days ago · 4 km deep · 3 km away
  6. 2.214 km SSE of Tres Pinos, California · 17651 days ago · 4 km deep · 3 km away
  7. 2.316 km SSE of Tres Pinos, California · 17651 days ago · 5 km deep · 1 km away
  8. 1.924 km NE of Greenfield, California · 17650 days ago · 5 km deep · 25 km away
  9. 2.523 km NE of King City, California · 17650 days ago · 8 km deep · 39 km away
  10. 1.613 km SSE of Tres Pinos, California · 17650 days ago · 4 km deep · 4 km away
  11. 2.027 km NE of Soledad, California · 17650 days ago · 9 km deep · 18 km away
  12. 2.113 km S of Tres Pinos, California · 17649 days ago · 3 km deep · 5 km away
  13. 2.731 km ENE of San Lucas, California · 17649 days ago · 9 km deep · 65 km away
  14. 1.78 km SE of San Juan Bautista, California · 17649 days ago · 4 km deep · 26 km away
  15. 1.621 km NW of Parkfield, California · 17648 days ago · 2 km deep · 89 km away
  16. 1.616 km NW of Parkfield, California · 17647 days ago · 4 km deep · 94 km away
  17. 1.85 km WSW of Gilroy, California · 17647 days ago · 7 km deep · 50 km away
  18. 1.814 km SSE of Tres Pinos, California · 17646 days ago · 3 km deep · 4 km away
  19. 1.622 km NE of San Lucas, California · 17646 days ago · 6 km deep · 52 km away
  20. 1.74 km ESE of Aromas, California · 17645 days ago · 6 km deep · 40 km away
  21. 1.621 km NE of Soledad, California · 17645 days ago · 9 km deep · 14 km away
  22. 1.912 km S of Tres Pinos, California · 17644 days ago · 3 km deep · 5 km away
  23. 2.124 km ENE of Soledad, California · 17644 days ago · 3 km deep · 23 km away
  24. 1.821 km NE of Soledad, California · 17643 days ago · 7 km deep · 15 km away
  25. 3.05 km E of East Foothills, California · 17643 days ago · 0 km deep · 93 km away
  26. 1.96 km NNW of Day Valley, California · 17643 days ago · 11 km deep · 75 km away
  27. 2.423 km NW of Parkfield, California · 17643 days ago · 5 km deep · 87 km away
  28. 2.423 km NW of Parkfield, California · 17643 days ago · 6 km deep · 87 km away
  29. 1.713 km SSE of Tres Pinos, California · 17642 days ago · 4 km deep · 4 km away
  30. 2.124 km ENE of Greenfield, California · 17641 days ago · 6 km deep · 35 km away
  31. 1.614 km SSE of Tres Pinos, California · 17640 days ago · 4 km deep · 4 km away
  32. 1.96 km WSW of Gilroy, California · 17639 days ago · 4 km deep · 51 km away
  33. 1.612 km ENE of Salinas, California · 17639 days ago · -1 km deep · 25 km away
  34. 1.52 km S of Hollister, California · 17638 days ago · 8 km deep · 25 km away
  35. 1.89 km ESE of Gilroy, California · 17638 days ago · 3 km deep · 42 km away
  36. 1.921 km NE of Soledad, California · 17638 days ago · 5 km deep · 10 km away
  37. 2.233 km ENE of Soledad, California · 17637 days ago · 17 km deep · 27 km away
  38. 2.024 km ENE of Greenfield, California · 17636 days ago · 6 km deep · 32 km away
  39. 1.622 km SSE of Tres Pinos, California · 17635 days ago · 5 km deep · 7 km away
  40. 2.02 km SE of San Ardo, California · 17635 days ago · 13 km deep · 78 km away
  41. 2.211 km S of Tres Pinos, California · 17634 days ago · 3 km deep · 8 km away
  42. 2.225 km NW of San Simeon, California · 17632 days ago · 9 km deep · 96 km away
  43. 3.011 km ESE of Gilroy, California · 17631 days ago · 5 km deep · 40 km away
  44. 2.011 km ESE of Gilroy, California · 17631 days ago · 5 km deep · 40 km away
  45. 1.811 km ESE of Gilroy, California · 17631 days ago · 5 km deep · 40 km away
  46. 2.210 km SW of Ridgemark, California · 17630 days ago · 7 km deep · 22 km away
  47. 1.62 km WSW of San Juan Bautista, California · 17629 days ago · 3 km deep · 35 km away
  48. 1.6Central California · 17628 days ago · 7 km deep · 22 km away
  49. 1.611 km SW of Ridgemark, California · 17628 days ago · 7 km deep · 22 km away
  50. 2.911 km ESE of Gilroy, California · 17628 days ago · 5 km deep · 40 km away
  51. 1.5Central California · 17628 days ago · 4 km deep · 39 km away
  52. 2.523 km ENE of Soledad, California · 17627 days ago · 4 km deep · 23 km away
  53. 1.824 km SE of Tres Pinos, California · 17626 days ago · 10 km deep · 13 km away
  54. 1.624 km SE of Tres Pinos, California · 17626 days ago · 10 km deep · 14 km away
  55. 3.111 km ESE of Gilroy, California · 17626 days ago · 5 km deep · 39 km away
  56. 2.511 km ESE of Gilroy, California · 17626 days ago · 5 km deep · 39 km away
  57. 1.74 km SSW of Gilroy, California · 17625 days ago · 4 km deep · 46 km away
  58. 1.514 km E of Seven Trees, California · 17625 days ago · 2 km deep · 81 km away
  59. 2.312 km ESE of Gilroy, California · 17625 days ago · 4 km deep · 39 km away
  60. 1.723 km NE of King City, California · 17624 days ago · 4 km deep · 43 km away

The first 60 of 116.

Before

  1. 1.6Northern California · 17655 days ago · 1 km deep · 82 km away
  2. 2.6Central California · 17655 days ago · 9 km deep · 18 km away
  3. 1.916 km SSE of Tres Pinos, California · 17655 days ago · 5 km deep · 1 km away
  4. 1.815 km SSE of Tres Pinos, California · 17655 days ago · 4 km deep · 2 km away
  5. 2.015 km SSE of Tres Pinos, California · 17655 days ago · 4 km deep · 2 km away
  6. 1.713 km SSE of Tres Pinos, California · 17656 days ago · 4 km deep · 4 km away
  7. 2.113 km SSE of Tres Pinos, California · 17656 days ago · 4 km deep · 4 km away
  8. 2.8Central California · 17656 days ago · 3 km deep · 4 km away
  9. 1.514 km SSE of Tres Pinos, California · 17656 days ago · 3 km deep · 3 km away
  10. 2.435 km W of Three Rocks, California · 17656 days ago · 3 km deep · 44 km away
  11. 1.713 km SSE of Tres Pinos, California · 17657 days ago · 3 km deep · 4 km away
  12. 1.814 km SSE of Tres Pinos, California · 17657 days ago · 3 km deep · 3 km away
  13. 2.422 km ENE of Soledad, California · 17657 days ago · 2 km deep · 17 km away
  14. 1.826 km NE of Greenfield, California · 17658 days ago · 6 km deep · 26 km away
  15. 1.614 km SSE of Tres Pinos, California · 17658 days ago · 3 km deep · 4 km away
  16. 1.713 km SSE of Tres Pinos, California · 17658 days ago · 4 km deep · 4 km away
  17. 1.64 km E of East Foothills, California · 17658 days ago · 0 km deep · 94 km away
  18. 1.51 km WNW of Hollister, California · 17658 days ago · 4 km deep · 29 km away
  19. 2.06 km E of East Foothills, California · 17659 days ago · 0 km deep · 92 km away
  20. 1.814 km SSE of Tres Pinos, California · 17659 days ago · 3 km deep · 3 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1040466. Read Tue, Sep 29, 2026, 2:25 AM UTC.