California earthquakes

M3.0 earthquake 3 km SW of Ridgemark, California

A magnitude 3.0 earthquake struck 3 km SW of Ridgemark, California on Mon, May 26, 1986, 6:58 PM PDT (01:58 UTC), 20 km (12 mi) below the surface.

A larger quake followed: M4.7 18 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
3.0 (Md, duration), minor
Magnitude from
Northern California Seismic System
Local time
UTC
1986-05-27 01:58:29 UTC
Depth
19.8 km (12.3 mi), shallow
Epicenter
36.795° N, 121.394° 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 1.4 km horizontally, 5.8 km in depth
Magnitude uncertainty
±0.32
Depth from
From location
Station coverage gap
221°, poorly surrounded by stations
Stations used
4

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 184 in the 60 days after this one and 177 in the 30 days before it.

After

  1. 1.55 km NNE of Tres Pinos, California · 14738 days ago · 3 km deep · 10 km away
  2. 1.613 km S of Tres Pinos, California · 14737 days ago · 4 km deep · 16 km away
  3. 1.65 km WNW of Spreckels, California · 14737 days ago · 5 km deep · 33 km away
  4. 2.01 km W of Lexington Hills, California · 14737 days ago · 11 km deep · 67 km away
  5. 2.015 km SW of Fairmead, California · 14737 days ago · 6 km deep · 99 km away
  6. 1.813 km ENE of East Foothills, California · 14737 days ago · 7 km deep · 77 km away
  7. 1.813 km NE of East Foothills, California · 14737 days ago · 9 km deep · 77 km away
  8. 1.515 km E of Seven Trees, California · 14736 days ago · 5 km deep · 60 km away
  9. 1.718 km NE of East Foothills, California · 14736 days ago · 6 km deep · 84 km away
  10. 1.518 km NE of East Foothills, California · 14736 days ago · 7 km deep · 84 km away
  11. 1.92 km NNW of Hollister, California · 14735 days ago · 7 km deep · 9 km away
  12. 1.713 km N of Morgan Hill, California · 14735 days ago · 5 km deep · 55 km away
  13. 3.16 km NE of Hollister, California · 14735 days ago · 7 km deep · 11 km away
  14. 1.76 km NE of Hollister, California · 14735 days ago · 8 km deep · 12 km away
  15. 1.84 km ENE of Tres Pinos, California · 14735 days ago · 10 km deep · 11 km away
  16. 1.718 km NE of East Foothills, California · 14735 days ago · 6 km deep · 83 km away
  17. 1.611 km E of East Foothills, California · 14735 days ago · 1 km deep · 70 km away
  18. 1.62 km W of Tres Pinos, California · 14734 days ago · 0 km deep · 4 km away
  19. 1.66 km WSW of Gilroy, California · 14734 days ago · 5 km deep · 29 km away
  20. 1.718 km NE of East Foothills, California · 14734 days ago · 6 km deep · 83 km away
  21. 1.622 km ENE of Soledad, California · 14734 days ago · 2 km deep · 40 km away
  22. 1.617 km SSE of Tres Pinos, California · 14734 days ago · 5 km deep · 21 km away
  23. 2.317 km SSE of Tres Pinos, California · 14734 days ago · 5 km deep · 21 km away
  24. 2.218 km SSE of Tres Pinos, California · 14734 days ago · 5 km deep · 22 km away
  25. 3.717 km SSE of Tres Pinos, California · 14734 days ago · 6 km deep · 22 km away
  26. 4.718 km SSE of Tres Pinos, California · 14734 days ago · 5 km deep · 22 km away
  27. 2.719 km SSE of Tres Pinos, California · 14734 days ago · 6 km deep · 23 km away
  28. 2.717 km SSE of Tres Pinos, California · 14734 days ago · 5 km deep · 21 km away
  29. 1.518 km SSE of Tres Pinos, California · 14734 days ago · 5 km deep · 22 km away
  30. 1.917 km SSE of Tres Pinos, California · 14734 days ago · 5 km deep · 21 km away
  31. 2.319 km SSE of Tres Pinos, California · 14734 days ago · 5 km deep · 23 km away
  32. 1.719 km SSE of Tres Pinos, California · 14734 days ago · 6 km deep · 23 km away
  33. 2.618 km SSE of Tres Pinos, California · 14734 days ago · 4 km deep · 22 km away
  34. 2.818 km SSE of Tres Pinos, California · 14734 days ago · 5 km deep · 23 km away
  35. 2.319 km SSE of Tres Pinos, California · 14734 days ago · 4 km deep · 23 km away
  36. 2.018 km SSE of Tres Pinos, California · 14734 days ago · 6 km deep · 23 km away
  37. 1.818 km SSE of Tres Pinos, California · 14734 days ago · 5 km deep · 23 km away
  38. 2.320 km SSE of Tres Pinos, California · 14734 days ago · 4 km deep · 24 km away
  39. 1.718 km NE of East Foothills, California · 14734 days ago · 7 km deep · 84 km away
  40. 1.917 km SSE of Tres Pinos, California · 14734 days ago · 4 km deep · 21 km away
  41. 1.618 km SSE of Tres Pinos, California · 14734 days ago · 6 km deep · 22 km away
  42. 3.018 km SSE of Tres Pinos, California · 14733 days ago · 5 km deep · 22 km away
  43. 1.518 km SSE of Tres Pinos, California · 14733 days ago · 5 km deep · 22 km away
  44. 2.017 km SSE of Tres Pinos, California · 14733 days ago · 5 km deep · 21 km away
  45. 2.219 km SSE of Tres Pinos, California · 14733 days ago · 6 km deep · 23 km away
  46. 1.617 km SSE of Tres Pinos, California · 14733 days ago · 5 km deep · 21 km away
  47. 2.517 km SSE of Tres Pinos, California · 14733 days ago · 5 km deep · 21 km away
  48. 1.917 km SSE of Tres Pinos, California · 14733 days ago · 5 km deep · 21 km away
  49. 2.117 km SSE of Tres Pinos, California · 14733 days ago · 5 km deep · 21 km away
  50. 1.917 km SSE of Tres Pinos, California · 14733 days ago · 5 km deep · 21 km away
  51. 2.518 km SSE of Tres Pinos, California · 14733 days ago · 6 km deep · 22 km away
  52. 1.97 km NE of Ridgemark, California · 14733 days ago · 6 km deep · 11 km away
  53. 2.018 km SSE of Tres Pinos, California · 14733 days ago · 6 km deep · 22 km away
  54. 1.919 km SSE of Tres Pinos, California · 14733 days ago · 7 km deep · 24 km away
  55. 3.6Central California · 14733 days ago · 5 km deep · 23 km away
  56. 3.519 km SSE of Tres Pinos, California · 14733 days ago · 5 km deep · 24 km away
  57. 2.620 km SSE of Tres Pinos, California · 14733 days ago · 4 km deep · 25 km away
  58. 2.220 km SSE of Tres Pinos, California · 14733 days ago · 5 km deep · 25 km away
  59. 1.85 km ENE of Interlaken, California · 14733 days ago · 11 km deep · 32 km away
  60. 1.69 km NNE of East Foothills, California · 14733 days ago · 5 km deep · 82 km away

The first 60 of 184.

Before

  1. 3.31 km W of Corralitos, California · 14738 days ago · 3 km deep · 44 km away
  2. 1.624 km NE of Soledad, California · 14738 days ago · 11 km deep · 34 km away
  3. 1.715 km SSE of Livermore, California · 14738 days ago · 0 km deep · 88 km away
  4. 2.96 km ENE of Morgan Hill, California · 14738 days ago · 3 km deep · 44 km away
  5. 1.86 km NE of Morgan Hill, California · 14738 days ago · 2 km deep · 45 km away
  6. 1.96 km NE of East Foothills, California · 14738 days ago · 7 km deep · 76 km away
  7. 2.113 km ENE of East Foothills, California · 14738 days ago · 9 km deep · 75 km away
  8. 1.514 km ENE of Morgan Hill, California · 14738 days ago · 4 km deep · 46 km away
  9. 1.713 km N of Morgan Hill, California · 14739 days ago · 6 km deep · 55 km away
  10. 1.813 km N of Morgan Hill, California · 14739 days ago · 5 km deep · 55 km away
  11. 1.619 km SSE of Livermore, California · 14739 days ago · 7 km deep · 85 km away
  12. 2.06 km ENE of Morgan Hill, California · 14739 days ago · 2 km deep · 44 km away
  13. 2.66 km NE of Morgan Hill, California · 14739 days ago · 3 km deep · 45 km away
  14. 2.96 km ENE of Morgan Hill, California · 14739 days ago · 2 km deep · 44 km away
  15. 2.56 km NE of Morgan Hill, California · 14739 days ago · 3 km deep · 45 km away
  16. 2.86 km NE of Morgan Hill, California · 14739 days ago · 2 km deep · 45 km away
  17. 2.18 km ENE of Tres Pinos, California · 14740 days ago · 8 km deep · 15 km away
  18. 1.817 km NE of East Foothills, California · 14740 days ago · 6 km deep · 83 km away
  19. 2.316 km SE of Livermore, California · 14740 days ago · 1 km deep · 88 km away
  20. 3.12 km N of Moss Landing, California · 14740 days ago · 5 km deep · 35 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1138482. Read Fri, Oct 2, 2026, 1:29 AM UTC.