California earthquakes

M2.2 earthquake 4 km SSW of Ridgemark, California

A magnitude 2.2 earthquake struck 4 km SSW of Ridgemark, California on Tue, Jun 15, 1982, 6:47 PM PDT (01:47 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M4.6 16 km SSE of Tres Pinos, 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
2.2 (md), micro
Local time
UTC
1982-06-16 01:47:58 UTC
Depth
2.9 km (1.8 mi), shallow
Epicenter
36.781° N, 121.389° 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, 0.6 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
25°
Stations used
60

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 166 in the 60 days after this one and 69 in the 30 days before it.

After

  1. 1.524 km NE of Greenfield, California · 16175 days ago · 5 km deep · 46 km away
  2. 2.029 km ENE of Soledad, California · 16175 days ago · 6 km deep · 42 km away
  3. 2.99 km E of Gilroy, California · 16175 days ago · 6 km deep · 27 km away
  4. 1.79 km NE of San Martin, California · 16175 days ago · 8 km deep · 42 km away
  5. 1.823 km ENE of Tres Pinos, California · 16175 days ago · 5 km deep · 30 km away
  6. 1.624 km ENE of Greenfield, California · 16175 days ago · 2 km deep · 50 km away
  7. 1.624 km ENE of Greenfield, California · 16175 days ago · 3 km deep · 51 km away
  8. 2.016 km E of East Foothills, California · 16174 days ago · 7 km deep · 70 km away
  9. 1.935 km WNW of Lockwood, California · 16174 days ago · 14 km deep · 83 km away
  10. 1.724 km NE of Greenfield, California · 16174 days ago · 5 km deep · 45 km away
  11. 2.2Northern California · 16173 days ago · 9 km deep · 32 km away
  12. 2.024 km SE of Tres Pinos, California · 16173 days ago · 5 km deep · 28 km away
  13. 1.86 km SE of Sunol, California · 16172 days ago · 9 km deep · 95 km away
  14. 4.129 km ENE of Soledad, California · 16172 days ago · 9 km deep · 42 km away
  15. 2.929 km ENE of Soledad, California · 16172 days ago · 9 km deep · 42 km away
  16. 1.828 km ENE of Soledad, California · 16172 days ago · 7 km deep · 43 km away
  17. 2.121 km NE of Soledad, California · 16172 days ago · 3 km deep · 34 km away
  18. 2.0Central California · 16170 days ago · 6 km deep · 20 km away
  19. 2.312 km WNW of El Nido, California · 16169 days ago · 0 km deep · 80 km away
  20. 2.110 km ESE of East Foothills, California · 16169 days ago · 7 km deep · 69 km away
  21. 1.910 km ESE of East Foothills, California · 16169 days ago · 8 km deep · 69 km away
  22. 1.714 km N of Morgan Hill, California · 16169 days ago · 6 km deep · 58 km away
  23. 1.523 km ENE of Soledad, California · 16169 days ago · 5 km deep · 43 km away
  24. 1.624 km NE of Greenfield, California · 16165 days ago · 5 km deep · 47 km away
  25. 1.77 km NE of Ridgemark, California · 16165 days ago · 7 km deep · 12 km away
  26. 2.013 km ENE of Morgan Hill, California · 16165 days ago · 10 km deep · 47 km away
  27. 2.121 km NE of Soledad, California · 16164 days ago · 2 km deep · 32 km away
  28. 2.49 km ESE of East Foothills, California · 16164 days ago · 7 km deep · 70 km away
  29. 1.711 km S of Tres Pinos, California · 16163 days ago · 4 km deep · 12 km away
  30. 2.220 km ESE of East Foothills, California · 16163 days ago · 6 km deep · 62 km away
  31. 1.823 km NE of San Ardo, California · 16161 days ago · 6 km deep · 87 km away
  32. 2.58 km SSW of Livermore, California · 16161 days ago · 7 km deep · 98 km away
  33. 1.58 km NE of San Martin, California · 16160 days ago · 8 km deep · 42 km away
  34. 1.733 km W of Lockwood, California · 16159 days ago · 16 km deep · 87 km away
  35. 2.128 km ENE of Soledad, California · 16159 days ago · 6 km deep · 42 km away
  36. 2.41 km WNW of Hollister, California · 16159 days ago · 5 km deep · 9 km away
  37. 2.014 km NNE of Morgan Hill, California · 16157 days ago · 4 km deep · 55 km away
  38. 3.210 km S of Tres Pinos, California · 16156 days ago · 4 km deep · 11 km away
  39. 2.424 km NE of Greenfield, California · 16155 days ago · 8 km deep · 45 km away
  40. 1.99 km NE of Gilroy, California · 16154 days ago · 7 km deep · 32 km away
  41. 1.98 km NW of El Nido, California · 16154 days ago · 13 km deep · 88 km away
  42. 1.84 km NNE of Tres Pinos, California · 16153 days ago · 6 km deep · 9 km away
  43. 1.911 km NW of Three Rocks, California · 16153 days ago · 9 km deep · 84 km away
  44. 2.512 km NW of Three Rocks, California · 16153 days ago · 14 km deep · 82 km away
  45. 2.021 km NNE of Soledad, California · 16152 days ago · 8 km deep · 27 km away
  46. 2.024 km NE of Greenfield, California · 16152 days ago · 6 km deep · 48 km away
  47. 2.124 km NE of Greenfield, California · 16152 days ago · 4 km deep · 47 km away
  48. 1.916 km SSE of Tres Pinos, California · 16152 days ago · 5 km deep · 18 km away
  49. 1.616 km SSE of Tres Pinos, California · 16152 days ago · 5 km deep · 18 km away
  50. 2.19 km SSW of Ridgemark, California · 16152 days ago · 7 km deep · 5 km away
  51. 1.68 km SSW of Livermore, California · 16152 days ago · 5 km deep · 98 km away
  52. 2.227 km E of Tres Pinos, California · 16151 days ago · 0 km deep · 33 km away
  53. 1.79 km NE of San Martin, California · 16151 days ago · 4 km deep · 44 km away
  54. 1.810 km S of Tres Pinos, California · 16150 days ago · 3 km deep · 10 km away
  55. 1.79 km ESE of East Foothills, California · 16149 days ago · 8 km deep · 70 km away
  56. 1.922 km NE of San Ardo, California · 16148 days ago · 1 km deep · 86 km away
  57. 1.524 km NE of Greenfield, California · 16148 days ago · 6 km deep · 48 km away
  58. 1.71 km E of Tres Pinos, California · 16148 days ago · 8 km deep · 7 km away
  59. 2.89 km NE of Gilroy, California · 16144 days ago · 9 km deep · 32 km away
  60. 2.33 km W of San Juan Bautista, California · 16144 days ago · 4 km deep · 18 km away

The first 60 of 166.

Before

  1. 3.229 km ENE of Soledad, California · 16176 days ago · 8 km deep · 43 km away
  2. 2.029 km ENE of Soledad, California · 16177 days ago · 7 km deep · 42 km away
  3. 1.729 km ENE of Soledad, California · 16177 days ago · 8 km deep · 42 km away
  4. 3.129 km ENE of Soledad, California · 16177 days ago · 8 km deep · 43 km away
  5. 1.614 km ESE of East Foothills, California · 16177 days ago · 6 km deep · 65 km away
  6. 1.611 km S of Tres Pinos, California · 16177 days ago · 4 km deep · 12 km away
  7. 1.524 km ENE of Greenfield, California · 16177 days ago · 6 km deep · 51 km away
  8. 1.73 km SE of Tres Pinos, California · 16178 days ago · 6 km deep · 9 km away
  9. 1.621 km NE of Soledad, California · 16179 days ago · 6 km deep · 33 km away
  10. 3.19 km E of Gilroy, California · 16179 days ago · 8 km deep · 27 km away
  11. 1.621 km NE of Soledad, California · 16179 days ago · 3 km deep · 33 km away
  12. 2.026 km NE of Greenfield, California · 16179 days ago · 6 km deep · 49 km away
  13. 2.021 km ENE of Gonzales, California · 16180 days ago · 7 km deep · 24 km away
  14. 2.223 km ENE of Greenfield, California · 16180 days ago · 7 km deep · 52 km away
  15. 2.020 km SSE of Tres Pinos, California · 16180 days ago · 6 km deep · 22 km away
  16. 1.713 km S of Tres Pinos, California · 16181 days ago · 4 km deep · 15 km away
  17. 1.66 km SE of Sunol, California · 16183 days ago · 11 km deep · 94 km away
  18. 2.413 km ENE of East Foothills, California · 16183 days ago · 5 km deep · 75 km away
  19. 1.613 km S of Tres Pinos, California · 16183 days ago · 4 km deep · 15 km away
  20. 2.29 km ENE of Gilroy, California · 16183 days ago · 9 km deep · 28 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1075379. Read Mon, Sep 28, 2026, 5:11 PM UTC.