California earthquakes

M1.9 earthquake 28 km WNW of Three Rocks, California

A magnitude 1.9 earthquake struck 28 km WNW of Three Rocks, California on Fri, Mar 11, 1977, 3:02 AM PST (11:02 UTC), 12 km (8 mi) below the surface.

A larger quake followed: M3.6 8 km NW of Hollister, California. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1977-03-11 11:02:52 UTC
Depth
12.2 km (7.6 mi), shallow
Epicenter
36.569° N, 120.701° 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 0.8 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
212°, poorly surrounded by stations
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 186 in the 60 days after this one and 147 in the 30 days before it.

After

  1. 3.228 km WNW of Three Rocks, California · 18103 days ago · 13 km deep · 1 km away
  2. 2.330 km WNW of Three Rocks, California · 18103 days ago · 12 km deep · 2 km away
  3. 3.68 km NW of Hollister, California · 18103 days ago · 7 km deep · 78 km away
  4. 1.8Central California · 18103 days ago · 6 km deep · 78 km away
  5. 2.325 km NE of Greenfield, California · 18102 days ago · 8 km deep · 30 km away
  6. 1.521 km NE of Soledad, California · 18102 days ago · 5 km deep · 40 km away
  7. 1.77 km WSW of Gilroy, California · 18101 days ago · 5 km deep · 97 km away
  8. 1.59 km SSW of Tres Pinos, California · 18101 days ago · 7 km deep · 60 km away
  9. 2.023 km NE of Greenfield, California · 18101 days ago · 5 km deep · 33 km away
  10. 2.28 km ENE of Gilroy, California · 18100 days ago · 7 km deep · 86 km away
  11. 2.019 km SSE of Tres Pinos, California · 18100 days ago · 4 km deep · 49 km away
  12. 1.521 km ESE of Tres Pinos, California · 18100 days ago · 5 km deep · 39 km away
  13. 2.221 km NE of Soledad, California · 18100 days ago · 6 km deep · 40 km away
  14. 2.821 km NE of Soledad, California · 18100 days ago · 6 km deep · 41 km away
  15. 2.325 km ENE of Greenfield, California · 18100 days ago · 3 km deep · 30 km away
  16. 2.125 km ENE of Greenfield, California · 18100 days ago · 5 km deep · 31 km away
  17. 1.66 km N of San Juan Bautista, California · 18100 days ago · 7 km deep · 84 km away
  18. 1.916 km SSE of Tres Pinos, California · 18099 days ago · 4 km deep · 52 km away
  19. 1.915 km SSE of Tres Pinos, California · 18099 days ago · 3 km deep · 52 km away
  20. 2.85 km NNE of Tres Pinos, California · 18099 days ago · 6 km deep · 60 km away
  21. 2.09 km NNW of Hollister, California · 18099 days ago · 4 km deep · 78 km away
  22. 3.69 km NNW of Hollister, California · 18099 days ago · 7 km deep · 79 km away
  23. 3.39 km NW of Hollister, California · 18099 days ago · 5 km deep · 79 km away
  24. 2.29 km NNW of Hollister, California · 18099 days ago · 5 km deep · 78 km away
  25. 2.214 km NNW of Coalinga, California · 18099 days ago · 11 km deep · 43 km away
  26. 3.010 km NNW of Hollister, California · 18099 days ago · 7 km deep · 79 km away
  27. 1.85 km SSW of Tres Pinos, California · 18099 days ago · 7 km deep · 60 km away
  28. 3.05 km SSW of Tres Pinos, California · 18098 days ago · 7 km deep · 60 km away
  29. 1.95 km SSW of Tres Pinos, California · 18098 days ago · 7 km deep · 60 km away
  30. 1.65 km SSW of Tres Pinos, California · 18098 days ago · 7 km deep · 60 km away
  31. 2.05 km SSW of Tres Pinos, California · 18098 days ago · 7 km deep · 60 km away
  32. 1.85 km SSW of Tres Pinos, California · 18098 days ago · 8 km deep · 60 km away
  33. 1.75 km SSW of Tres Pinos, California · 18098 days ago · 8 km deep · 61 km away
  34. 2.65 km SSW of Tres Pinos, California · 18098 days ago · 8 km deep · 60 km away
  35. 2.221 km NE of San Lucas, California · 18098 days ago · 8 km deep · 38 km away
  36. 2.69 km NW of Hollister, California · 18098 days ago · 6 km deep · 78 km away
  37. 1.65 km SSW of Tres Pinos, California · 18098 days ago · 8 km deep · 60 km away
  38. 3.05 km SSW of Tres Pinos, California · 18098 days ago · 8 km deep · 61 km away
  39. 2.15 km SSW of Tres Pinos, California · 18098 days ago · 8 km deep · 61 km away
  40. 1.95 km SSW of Tres Pinos, California · 18098 days ago · 8 km deep · 60 km away
  41. 1.724 km NE of Greenfield, California · 18098 days ago · 1 km deep · 32 km away
  42. 2.023 km NE of Greenfield, California · 18098 days ago · 6 km deep · 32 km away
  43. 2.25 km SSW of Tres Pinos, California · 18098 days ago · 8 km deep · 60 km away
  44. 1.75 km SSW of Tres Pinos, California · 18097 days ago · 8 km deep · 60 km away
  45. 2.49 km SSE of Tres Pinos, California · 18097 days ago · 8 km deep · 55 km away
  46. 2.121 km SSE of Tres Pinos, California · 18097 days ago · 2 km deep · 47 km away
  47. 1.724 km NNE of King City, California · 18097 days ago · 6 km deep · 31 km away
  48. 2.85 km SSW of Tres Pinos, California · 18097 days ago · 9 km deep · 61 km away
  49. 1.65 km SSW of Tres Pinos, California · 18097 days ago · 8 km deep · 61 km away
  50. 1.85 km SSW of Tres Pinos, California · 18096 days ago · 8 km deep · 61 km away
  51. 2.021 km SSE of Tres Pinos, California · 18095 days ago · 2 km deep · 47 km away
  52. 1.725 km ENE of Greenfield, California · 18095 days ago · 7 km deep · 31 km away
  53. 2.018 km NW of Parkfield, California · 18094 days ago · 4 km deep · 62 km away
  54. 2.224 km NE of Soledad, California · 18094 days ago · 9 km deep · 38 km away
  55. 2.525 km ENE of Greenfield, California · 18093 days ago · 5 km deep · 31 km away
  56. 2.327 km ENE of Soledad, California · 18092 days ago · 5 km deep · 32 km away
  57. 2.424 km NE of Greenfield, California · 18092 days ago · 5 km deep · 33 km away
  58. 2.28 km NW of Hollister, California · 18092 days ago · 7 km deep · 78 km away
  59. 1.624 km NE of Greenfield, California · 18092 days ago · 5 km deep · 33 km away
  60. 1.923 km NE of Greenfield, California · 18092 days ago · 5 km deep · 33 km away

The first 60 of 186.

Before

  1. 1.822 km NNE of Soledad, California · 18104 days ago · 6 km deep · 45 km away
  2. 1.628 km NE of Soledad, California · 18105 days ago · 7 km deep · 34 km away
  3. 2.03 km E of Hollister, California · 18105 days ago · 8 km deep · 66 km away
  4. 1.89 km SSW of Ridgemark, California · 18106 days ago · 6 km deep · 66 km away
  5. 1.921 km ESE of Tres Pinos, California · 18107 days ago · 6 km deep · 39 km away
  6. 1.85 km SSW of Tres Pinos, California · 18107 days ago · 7 km deep · 61 km away
  7. 1.628 km ENE of Soledad, California · 18108 days ago · 8 km deep · 33 km away
  8. 2.55 km WSW of Gilroy, California · 18108 days ago · 3 km deep · 94 km away
  9. 1.821 km ESE of Tres Pinos, California · 18109 days ago · 1 km deep · 39 km away
  10. 1.920 km ESE of Tres Pinos, California · 18109 days ago · 4 km deep · 40 km away
  11. 1.9Central California · 18109 days ago · 4 km deep · 47 km away
  12. 1.821 km ESE of Tres Pinos, California · 18109 days ago · 4 km deep · 39 km away
  13. 1.721 km ESE of Tres Pinos, California · 18109 days ago · 5 km deep · 39 km away
  14. 2.221 km ESE of Tres Pinos, California · 18109 days ago · 5 km deep · 39 km away
  15. 3.321 km ESE of Tres Pinos, California · 18109 days ago · 5 km deep · 39 km away
  16. 2.111 km NNE of Shandon, California · 18109 days ago · 12 km deep · 98 km away
  17. 1.924 km NE of Greenfield, California · 18110 days ago · 5 km deep · 33 km away
  18. 1.520 km NE of Soledad, California · 18110 days ago · 7 km deep · 41 km away
  19. 1.524 km NE of Greenfield, California · 18111 days ago · 6 km deep · 33 km away
  20. 1.78 km NE of San Martin, California · 18111 days ago · 9 km deep · 97 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1034338. Read Sun, Oct 4, 2026, 7:57 AM UTC.