California earthquakes

M2.2 earthquake 8 km SSW of Ridgemark, California

A magnitude 2.2 earthquake struck 8 km SSW of Ridgemark, California on Fri, May 23, 1980, 7:45 AM PDT (14:45 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.2 2 km NNE of Aromas, 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, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1980-05-23 14:45:46 UTC
Depth
6.2 km (3.8 mi), shallow
Epicenter
36.738° N, 121.401° 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
±0.08
Depth from
From location
Station coverage gap
49°
Stations used
34

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 143 in the 60 days after this one and 90 in the 30 days before it.

After

  1. 2.522 km NE of Soledad, California · 16935 days ago · 6 km deep · 25 km away
  2. 1.97 km NE of Interlaken, California · 16935 days ago · 4 km deep · 37 km away
  3. 1.524 km ENE of Soledad, California · 16935 days ago · 3 km deep · 40 km away
  4. 1.727 km WNW of Coalinga, California · 16934 days ago · 6 km deep · 90 km away
  5. 2.822 km NE of Soledad, California · 16933 days ago · 4 km deep · 26 km away
  6. 1.6Central California · 16933 days ago · 7 km deep · 38 km away
  7. 2.921 km ENE of Greenfield, California · 16932 days ago · 6 km deep · 47 km away
  8. 1.51 km S of Los Gatos, California · 16932 days ago · 4 km deep · 73 km away
  9. 1.85 km NE of Morgan Hill, California · 16932 days ago · 5 km deep · 50 km away
  10. 2.19 km NW of Hollister, California · 16932 days ago · 5 km deep · 20 km away
  11. 2.921 km NE of Soledad, California · 16931 days ago · 7 km deep · 30 km away
  12. 2.29 km ENE of Gilroy, California · 16931 days ago · 9 km deep · 34 km away
  13. 2.59 km NE of San Martin, California · 16931 days ago · 10 km deep · 47 km away
  14. 2.88 km ENE of San Martin, California · 16931 days ago · 2 km deep · 44 km away
  15. 1.62 km NE of East Foothills, California · 16930 days ago · 2 km deep · 81 km away
  16. 2.023 km NE of Greenfield, California · 16929 days ago · 4 km deep · 42 km away
  17. 3.420 km ENE of San Lucas, California · 16929 days ago · 6 km deep · 77 km away
  18. 2.823 km ENE of San Lucas, California · 16929 days ago · 10 km deep · 78 km away
  19. 2.0Central California · 16929 days ago · 2 km deep · 95 km away
  20. 1.813 km SW of Soledad, California · 16928 days ago · 8 km deep · 44 km away
  21. 1.8Central California · 16928 days ago · 5 km deep · 23 km away
  22. 1.88 km ENE of Interlaken, California · 16928 days ago · 3 km deep · 36 km away
  23. 3.222 km ENE of San Lucas, California · 16927 days ago · 7 km deep · 77 km away
  24. 1.84 km SSW of Gilroy, California · 16927 days ago · 6 km deep · 30 km away
  25. 2.03 km E of East Foothills, California · 16926 days ago · 1 km deep · 79 km away
  26. 1.830 km SE of Tres Pinos, California · 16926 days ago · 9 km deep · 33 km away
  27. 1.621 km NE of Soledad, California · 16926 days ago · 4 km deep · 27 km away
  28. 1.722 km NE of Soledad, California · 16926 days ago · 3 km deep · 29 km away
  29. 2.021 km ENE of East Foothills, California · 16926 days ago · 5 km deep · 85 km away
  30. 1.923 km SSW of Volta, California · 16925 days ago · 3 km deep · 37 km away
  31. 2.133 km NE of San Lucas, California · 16924 days ago · 19 km deep · 79 km away
  32. 2.811 km ESE of Gilroy, California · 16924 days ago · 3 km deep · 26 km away
  33. 2.011 km ESE of Gilroy, California · 16924 days ago · 3 km deep · 25 km away
  34. 2.39 km NE of Corralitos, California · 16924 days ago · 11 km deep · 45 km away
  35. 1.521 km ESE of Tres Pinos, California · 16922 days ago · 59 km deep · 26 km away
  36. 2.512 km SSE of Livermore, California · 16921 days ago · 5 km deep · 97 km away
  37. 1.67 km SSE of San Juan Bautista, California · 16921 days ago · 8 km deep · 11 km away
  38. 2.39 km NE of Gilroy, California · 16920 days ago · 9 km deep · 38 km away
  39. 2.07 km SSE of San Juan Bautista, California · 16918 days ago · 6 km deep · 10 km away
  40. 2.58 km NW of Morgan Hill, California · 16918 days ago · 51 km deep · 58 km away
  41. 3.139km WSW of Mendota, CA · 16918 days ago · 6 km deep · 62 km away
  42. 1.523 km ENE of San Lucas, California · 16917 days ago · 5 km deep · 77 km away
  43. 1.77 km SSE of San Juan Bautista, California · 16917 days ago · 6 km deep · 10 km away
  44. 3.3Central California · 16916 days ago · 5 km deep · 32 km away
  45. 1.98 km NW of Hollister, California · 16916 days ago · 7 km deep · 20 km away
  46. 1.66 km SSE of Sunol, California · 16916 days ago · 5 km deep · 98 km away
  47. 2.58 km E of Gilroy, California · 16916 days ago · 5 km deep · 29 km away
  48. 2.1Central California · 16915 days ago · 7 km deep · 79 km away
  49. 1.6Central California · 16915 days ago · 4 km deep · 38 km away
  50. 2.35 km SW of Ridgemark, California · 16915 days ago · 8 km deep · 4 km away
  51. 1.79 km NE of San Martin, California · 16915 days ago · 8 km deep · 47 km away
  52. 1.914 km SE of Tres Pinos, California · 16915 days ago · 6 km deep · 20 km away
  53. 2.95 km NNE of Interlaken, California · 16914 days ago · 10 km deep · 40 km away
  54. 1.624 km ENE of Greenfield, California · 16914 days ago · 7 km deep · 48 km away
  55. 1.76 km NNE of Interlaken, California · 16914 days ago · 9 km deep · 40 km away
  56. 2.320 km SSE of Tres Pinos, California · 16914 days ago · 5 km deep · 20 km away
  57. 1.620 km SSE of Tres Pinos, California · 16914 days ago · 4 km deep · 20 km away
  58. 2.07 km E of East Foothills, California · 16913 days ago · 6 km deep · 76 km away
  59. 1.623 km NE of Soledad, California · 16913 days ago · 4 km deep · 32 km away
  60. 2.322 km NNE of Soledad, California · 16911 days ago · 8 km deep · 22 km away

The first 60 of 143.

Before

  1. 2.39 km E of Gilroy, California · 16936 days ago · 8 km deep · 32 km away
  2. 1.56 km ESE of Lexington Hills, California · 16936 days ago · 12 km deep · 63 km away
  3. 1.722 km NNE of Soledad, California · 16937 days ago · 4 km deep · 23 km away
  4. 1.922 km NNE of Soledad, California · 16937 days ago · 5 km deep · 23 km away
  5. 2.422 km NNE of Soledad, California · 16937 days ago · 4 km deep · 23 km away
  6. 1.627 km ENE of Soledad, California · 16937 days ago · 9 km deep · 38 km away
  7. 2.48 km SSE of San Juan Bautista, California · 16939 days ago · 7 km deep · 9 km away
  8. 1.812 km ESE of East Foothills, California · 16939 days ago · 8 km deep · 70 km away
  9. 2.822 km NE of Soledad, California · 16939 days ago · 5 km deep · 26 km away
  10. 1.58 km ENE of Interlaken, California · 16939 days ago · 3 km deep · 36 km away
  11. 1.56 km SSE of San Juan Bautista, California · 16940 days ago · 6 km deep · 11 km away
  12. 1.812 km S of Tres Pinos, California · 16941 days ago · 3 km deep · 11 km away
  13. 2.11 km NE of Hollister, California · 16943 days ago · 6 km deep · 14 km away
  14. 2.012 km SW of Greenfield, California · 16943 days ago · 15 km deep · 54 km away
  15. 3.018 km SSE of Tres Pinos, California · 16943 days ago · 10 km deep · 18 km away
  16. 1.533 km WSW of Three Rocks, California · 16944 days ago · 11 km deep · 72 km away
  17. 1.513 km SW of Greenfield, California · 16945 days ago · 13 km deep · 54 km away
  18. 1.612 km NE of Hollister, California · 16946 days ago · 8 km deep · 23 km away
  19. 1.86 km ENE of Seven Trees, California · 16946 days ago · 6 km deep · 72 km away
  20. 1.614 km ESE of Carmel Valley Village, California · 16947 days ago · 22 km deep · 38 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1053016. Read Sun, Oct 4, 2026, 4:19 PM UTC.