California earthquakes

M2.5 earthquake 9 km SW of Ridgemark, California

A magnitude 2.5 earthquake struck 9 km SW of Ridgemark, California on Sat, Feb 13, 1982, 12:10 PM PST (20:10 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M2.8 22 km ENE 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
2.5 (md), micro
Local time
UTC
1982-02-13 20:10:53 UTC
Depth
7.4 km (4.6 mi), shallow
Epicenter
36.751° N, 121.442° 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, 0.5 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
28°
Stations used
52

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 161 in the 60 days after this one and 17 in the 30 days before it.

After

  1. 1.810 km WNW of Volta, California · 16292 days ago · 6 km deep · 56 km away
  2. 2.22 km WSW of Hollister, California · 16292 days ago · 5 km deep · 10 km away
  3. 1.617 km W of Volta, California · 16292 days ago · 0 km deep · 46 km away
  4. 2.822 km ENE of Soledad, California · 16291 days ago · 2 km deep · 38 km away
  5. 1.922 km NE of Soledad, California · 16291 days ago · 3 km deep · 37 km away
  6. 2.722 km ENE of Soledad, California · 16291 days ago · 3 km deep · 38 km away
  7. 2.27 km E of East Foothills, California · 16291 days ago · 6 km deep · 74 km away
  8. 2.27 km E of East Foothills, California · 16291 days ago · 6 km deep · 74 km away
  9. 3.02 km WSW of San Juan Bautista, California · 16290 days ago · 6 km deep · 14 km away
  10. 2.922 km NNE of Soledad, California · 16290 days ago · 6 km deep · 27 km away
  11. 2.92 km SW of San Juan Bautista, California · 16290 days ago · 6 km deep · 13 km away
  12. 3.02 km WSW of San Juan Bautista, California · 16290 days ago · 6 km deep · 14 km away
  13. 2.42 km S of San Juan Bautista, California · 16289 days ago · 6 km deep · 12 km away
  14. 2.025 km NNE of King City, California · 16289 days ago · 7 km deep · 57 km away
  15. 2.26 km WSW of Gilroy, California · 16289 days ago · 3 km deep · 31 km away
  16. 1.58 km NNE of Milpitas, California · 16288 days ago · 3 km deep · 91 km away
  17. 2.49 km NW of Hollister, California · 16288 days ago · 5 km deep · 18 km away
  18. 2.230 km W of Lockwood, California · 16288 days ago · 13 km deep · 92 km away
  19. 2.022 km NE of Soledad, California · 16288 days ago · 6 km deep · 29 km away
  20. 1.622 km NE of San Ardo, California · 16287 days ago · 2 km deep · 92 km away
  21. 2.218 km SSE of Tres Pinos, California · 16286 days ago · 11 km deep · 21 km away
  22. 1.818 km SSE of Tres Pinos, California · 16286 days ago · 11 km deep · 21 km away
  23. 1.510 km WNW of Moss Landing, California · 16285 days ago · 10 km deep · 42 km away
  24. 1.924 km NE of Greenfield, California · 16285 days ago · 6 km deep · 49 km away
  25. 1.625 km NNE of King City, California · 16285 days ago · 7 km deep · 56 km away
  26. 1.526 km SE of Tres Pinos, California · 16285 days ago · 8 km deep · 33 km away
  27. 2.88 km NE of Gilroy, California · 16284 days ago · 7 km deep · 34 km away
  28. 1.710 km E of Big Sur, California · 16284 days ago · 3 km deep · 57 km away
  29. 2.224 km ENE of Greenfield, California · 16284 days ago · 6 km deep · 53 km away
  30. 1.625 km ENE of Greenfield, California · 16284 days ago · 9 km deep · 54 km away
  31. 1.721 km NE of Soledad, California · 16284 days ago · 7 km deep · 33 km away
  32. 1.721 km NE of Soledad, California · 16284 days ago · 7 km deep · 34 km away
  33. 2.036 km W of Three Rocks, California · 16283 days ago · 9 km deep · 62 km away
  34. 1.79 km NE of San Juan Bautista, California · 16283 days ago · 7 km deep · 18 km away
  35. 2.07 km ESE of East Foothills, California · 16283 days ago · 5 km deep · 73 km away
  36. 1.729 km SE of Big Sur, California · 16283 days ago · 12 km deep · 75 km away
  37. 1.58 km E of San Martin, California · 16283 days ago · 6 km deep · 39 km away
  38. 1.65 km S of Gilroy, California · 16282 days ago · 6 km deep · 26 km away
  39. 1.515 km N of Morgan Hill, California · 16282 days ago · 5 km deep · 61 km away
  40. 2.025 km NE of Greenfield, California · 16282 days ago · 9 km deep · 51 km away
  41. 1.521 km NE of Soledad, California · 16282 days ago · 2 km deep · 30 km away
  42. 2.231 km ENE of Soledad, California · 16281 days ago · 6 km deep · 44 km away
  43. 2.315 km E of Seven Trees, California · 16280 days ago · 5 km deep · 63 km away
  44. 1.89 km NNE of Morgan Hill, California · 16279 days ago · 4 km deep · 52 km away
  45. 2.12 km S of San Juan Bautista, California · 16279 days ago · 5 km deep · 12 km away
  46. 1.95 km SW of Gilroy, California · 16278 days ago · 4 km deep · 29 km away
  47. 2.05 km SW of Gilroy, California · 16278 days ago · 4 km deep · 29 km away
  48. 1.626 km ENE of Greenfield, California · 16277 days ago · 1 km deep · 52 km away
  49. 1.821 km NNE of Soledad, California · 16277 days ago · 8 km deep · 27 km away
  50. 2.38 km NE of Hollister, California · 16276 days ago · 2 km deep · 19 km away
  51. 1.88 km NE of Hollister, California · 16276 days ago · 1 km deep · 19 km away
  52. 1.98 km ENE of Morgan Hill, California · 16275 days ago · 2 km deep · 46 km away
  53. 1.924 km NE of Greenfield, California · 16275 days ago · 5 km deep · 46 km away
  54. 1.62 km W of San Juan Bautista, California · 16274 days ago · 6 km deep · 15 km away
  55. 3.119 km SSE of Tres Pinos, California · 16273 days ago · 7 km deep · 22 km away
  56. 1.719 km SE of Tres Pinos, California · 16273 days ago · 6 km deep · 27 km away
  57. 2.721 km SW of Three Rocks, California · 16273 days ago · 14 km deep · 90 km away
  58. 1.85 km SW of Gilroy, California · 16273 days ago · 7 km deep · 29 km away
  59. 2.29 km SW of Ridgemark, California · 16273 days ago · 6 km deep · 1 km away
  60. 3.08 km ENE of Gilroy, California · 16271 days ago · 8 km deep · 32 km away

The first 60 of 161.

Before

  1. 1.612 km ESE of Livermore, California · 16292 days ago · 8 km deep · 99 km away
  2. 1.922 km ENE of San Lucas, California · 16293 days ago · 6 km deep · 80 km away
  3. 1.724 km NE of Greenfield, California · 16293 days ago · 6 km deep · 48 km away
  4. 1.814 km N of Hollister, California · 16293 days ago · 6 km deep · 26 km away
  5. 2.23 km WNW of San Juan Bautista, California · 16294 days ago · 4 km deep · 17 km away
  6. 1.914 km E of Seven Trees, California · 16294 days ago · 1 km deep · 64 km away
  7. 1.84 km NE of Tres Pinos, California · 16294 days ago · 3 km deep · 15 km away
  8. 3.23 km ENE of Tres Pinos, California · 16295 days ago · 5 km deep · 15 km away
  9. 1.75 km WSW of Gilroy, California · 16295 days ago · 7 km deep · 31 km away
  10. 2.48 km ENE of Patterson, California · 16295 days ago · 12 km deep · 90 km away
  11. 1.918 km E of East Foothills, California · 16296 days ago · 4 km deep · 70 km away
  12. 1.937 km NE of King City, California · 16296 days ago · 17 km deep · 65 km away
  13. 1.926 km SE of Tres Pinos, California · 16296 days ago · 10 km deep · 33 km away
  14. 1.724 km ENE of Soledad, California · 16296 days ago · 0 km deep · 38 km away
  15. 3.010 km S of Tres Pinos, California · 16296 days ago · 4 km deep · 13 km away
  16. 1.98 km ENE of Morgan Hill, California · 16297 days ago · 4 km deep · 47 km away
  17. 2.11 km NE of Aromas, California · 16297 days ago · 5 km deep · 23 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1072081. Read Tue, Sep 22, 2026, 9:30 PM UTC.