California earthquakes

M3.0 earthquake 6 km NNE of Ridgemark, California

A magnitude 3.0 earthquake struck 6 km NNE of Ridgemark, California on Tue, Feb 12, 1974, 1:35 AM PDT (08:35 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.3 24 km NE 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.

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The earthquake

Magnitude
3.0 (Md, duration), minor
Magnitude from
Northern California Seismic System
Local time
UTC
1974-02-12 08:35:22 UTC
Depth
9.6 km (6.0 mi), shallow
Epicenter
36.858° N, 121.329° 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, 0.6 km in depth
Magnitude uncertainty
±0.32
Depth from
From location
Station coverage gap
74°
Stations used
24

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 199 in the 60 days after this one and 196 in the 30 days before it.

After

  1. 1.524 km NE of Greenfield, California · 19226 days ago · 5 km deep · 51 km away
  2. 3.18 km ENE of Patterson, California · 19225 days ago · 2 km deep · 76 km away
  3. 2.016 km SSE of Tres Pinos, California · 19225 days ago · 3 km deep · 24 km away
  4. 1.68 km ENE of San Martin, California · 19225 days ago · 8 km deep · 35 km away
  5. 1.623 km ENE of Soledad, California · 19225 days ago · 8 km deep · 42 km away
  6. 1.624 km NE of King City, California · 19225 days ago · 5 km deep · 62 km away
  7. 4.18 km SW of Tres Pinos, California · 19224 days ago · 2 km deep · 15 km away
  8. 4.38 km SW of Tres Pinos, California · 19224 days ago · 3 km deep · 15 km away
  9. 2.122 km ENE of Soledad, California · 19224 days ago · 5 km deep · 44 km away
  10. 2.122 km ENE of Soledad, California · 19224 days ago · 5 km deep · 44 km away
  11. 3.324 km NE of Greenfield, California · 19224 days ago · 8 km deep · 50 km away
  12. 1.721 km SSE of Tres Pinos, California · 19224 days ago · 5 km deep · 29 km away
  13. 2.024 km ENE of Greenfield, California · 19224 days ago · 4 km deep · 58 km away
  14. 2.213 km S of Tres Pinos, California · 19224 days ago · 2 km deep · 21 km away
  15. 2.022 km ENE of Soledad, California · 19224 days ago · 4 km deep · 44 km away
  16. 2.222 km ENE of Soledad, California · 19224 days ago · 5 km deep · 44 km away
  17. 3.79 km SW of Tres Pinos, California · 19224 days ago · 3 km deep · 15 km away
  18. 2.221 km NE of Soledad, California · 19224 days ago · 5 km deep · 36 km away
  19. 1.93 km S of San Juan Bautista, California · 19224 days ago · 6 km deep · 19 km away
  20. 3.123 km ENE of Soledad, California · 19223 days ago · 9 km deep · 41 km away
  21. 2.08 km SSW of Tres Pinos, California · 19223 days ago · 3 km deep · 16 km away
  22. 3.14 km WNW of Hollister, California · 19223 days ago · 3 km deep · 11 km away
  23. 1.923 km ENE of Soledad, California · 19222 days ago · 8 km deep · 43 km away
  24. 1.83 km SSE of Day Valley, California · 19222 days ago · 12 km deep · 49 km away
  25. 2.615 km E of Tres Pinos, California · 19222 days ago · 2 km deep · 17 km away
  26. 2.124 km NNE of King City, California · 19222 days ago · 5 km deep · 60 km away
  27. 1.826 km ESE of Tres Pinos, California · 19222 days ago · 1 km deep · 30 km away
  28. 1.622 km NE of Soledad, California · 19221 days ago · 8 km deep · 37 km away
  29. 2.25 km NNW of Aromas, California · 19221 days ago · 10 km deep · 31 km away
  30. 3.38 km ENE of San Martin, California · 19221 days ago · 7 km deep · 33 km away
  31. 2.323 km NE of King City, California · 19221 days ago · 5 km deep · 68 km away
  32. 2.313 km NNE of Hollister, California · 19220 days ago · 4 km deep · 13 km away
  33. 1.62 km WNW of San Juan Bautista, California · 19220 days ago · 0 km deep · 21 km away
  34. 1.90 km NE of Gonzales, California · 19220 days ago · 13 km deep · 40 km away
  35. 2.14 km ESE of Tres Pinos, California · 19220 days ago · 5 km deep · 11 km away
  36. 1.63 km SSW of Gilroy, California · 19220 days ago · 0 km deep · 27 km away
  37. 1.8Central California · 19220 days ago · 5 km deep · 29 km away
  38. 2.2Central California · 19219 days ago · 4 km deep · 6 km away
  39. 2.724 km NE of Soledad, California · 19219 days ago · 1 km deep · 38 km away
  40. 1.914 km E of Seven Trees, California · 19219 days ago · 5 km deep · 56 km away
  41. 1.8Northern California · 19218 days ago · 8 km deep · 34 km away
  42. 2.022 km SE of Tres Pinos, California · 19218 days ago · 21 km deep · 29 km away
  43. 4.223 km SE of Tres Pinos, California · 19218 days ago · 7 km deep · 30 km away
  44. 2.921 km NE of San Lucas, California · 19217 days ago · 7 km deep · 77 km away
  45. 2.23 km N of East Foothills, California · 19217 days ago · 1 km deep · 75 km away
  46. 2.024 km ENE of Soledad, California · 19217 days ago · 9 km deep · 43 km away
  47. 2.67 km NNE of Morgan Hill, California · 19217 days ago · 3 km deep · 44 km away
  48. 1.622 km ENE of San Lucas, California · 19217 days ago · 7 km deep · 83 km away
  49. 2.07 km NNE of Morgan Hill, California · 19217 days ago · 3 km deep · 44 km away
  50. 3.48 km SSW of Tres Pinos, California · 19217 days ago · 3 km deep · 15 km away
  51. 1.87 km E of East Foothills, California · 19217 days ago · 8 km deep · 67 km away
  52. 1.57 km SSW of Tres Pinos, California · 19216 days ago · 15 km deep · 15 km away
  53. 1.926 km NE of Soledad, California · 19216 days ago · 1 km deep · 39 km away
  54. 2.622 km NE of San Lucas, California · 19216 days ago · 6 km deep · 81 km away
  55. 3.424 km NE of Greenfield, California · 19215 days ago · 5 km deep · 51 km away
  56. 1.822 km ENE of Soledad, California · 19215 days ago · 4 km deep · 43 km away
  57. 2.522 km ENE of Soledad, California · 19215 days ago · 6 km deep · 44 km away
  58. 2.55 km NE of Aromas, California · 19215 days ago · 7 km deep · 25 km away
  59. 2.524 km NE of Greenfield, California · 19214 days ago · 2 km deep · 50 km away
  60. 2.62 km E of Tres Pinos, California · 19214 days ago · 7 km deep · 8 km away

The first 60 of 199.

Before

  1. 2.624 km NE of Greenfield, California · 19226 days ago · 5 km deep · 50 km away
  2. 1.821 km NE of Soledad, California · 19227 days ago · 6 km deep · 36 km away
  3. 1.75 km SSW of Gilroy, California · 19227 days ago · 5 km deep · 25 km away
  4. 2.123 km NE of Greenfield, California · 19227 days ago · 5 km deep · 49 km away
  5. 2.222 km NE of San Lucas, California · 19227 days ago · 7 km deep · 82 km away
  6. 1.927 km SE of Tres Pinos, California · 19227 days ago · 4 km deep · 34 km away
  7. 2.88 km SSW of Tres Pinos, California · 19227 days ago · 2 km deep · 15 km away
  8. 3.427 km ENE of Soledad, California · 19228 days ago · 5 km deep · 42 km away
  9. 2.56 km S of Sunol, California · 19228 days ago · 8 km deep · 91 km away
  10. 2.56 km S of Sunol, California · 19228 days ago · 8 km deep · 91 km away
  11. 3.028 km SE of Tres Pinos, California · 19228 days ago · 11 km deep · 34 km away
  12. 3.4Central California · 19228 days ago · 5 km deep · 59 km away
  13. 4.021 km NE of Soledad, California · 19228 days ago · 6 km deep · 37 km away
  14. 1.821 km NE of Soledad, California · 19228 days ago · 6 km deep · 39 km away
  15. 2.321 km NE of Soledad, California · 19228 days ago · 6 km deep · 38 km away
  16. 2.921 km NE of Soledad, California · 19228 days ago · 5 km deep · 38 km away
  17. 3.721 km NE of Soledad, California · 19228 days ago · 7 km deep · 38 km away
  18. 2.18 km NE of San Martin, California · 19228 days ago · 6 km deep · 35 km away
  19. 2.121 km NE of Soledad, California · 19228 days ago · 7 km deep · 39 km away
  20. 1.921 km NE of Soledad, California · 19229 days ago · 7 km deep · 38 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1018713. Read Sat, Oct 3, 2026, 9:40 AM UTC.