California earthquakes

M2.6 earthquake 10 km SW of Ridgemark, California

A magnitude 2.6 earthquake struck 10 km SW of Ridgemark, California on Fri, May 25, 1990, 4:47 PM PDT (23:47 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.1 6 km NE of East Foothills, 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
2.6 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1990-05-25 23:47:18 UTC
Depth
7.6 km (4.7 mi), shallow
Epicenter
36.760° N, 121.462° 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, 0.3 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
31°
Stations used
71

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 176 in the 60 days after this one and 101 in the 30 days before it.

After

  1. 1.65 km ESE of Interlaken, California · 13278 days ago · 11 km deep · 27 km away
  2. 1.918 km WSW of Three Rocks, California · 13278 days ago · 12 km deep · 85 km away
  3. 1.64 km S of Lexington Hills, California · 13278 days ago · 13 km deep · 61 km away
  4. 2.73 km W of San Juan Bautista, California · 13278 days ago · 6 km deep · 14 km away
  5. 2.213 km WNW of Davenport, California · 13277 days ago · 3 km deep · 84 km away
  6. 2.328 km WSW of Mendota, California · 13277 days ago · -1 km deep · 71 km away
  7. 1.62 km N of Interlaken, California · 13277 days ago · 12 km deep · 34 km away
  8. 2.14 km WNW of Lexington Hills, California · 13277 days ago · 11 km deep · 68 km away
  9. 2.44 km S of Lexington Hills, California · 13276 days ago · 14 km deep · 61 km away
  10. 2.4Central California · 13276 days ago · 7 km deep · 9 km away
  11. 1.82 km S of Lexington Hills, California · 13276 days ago · 13 km deep · 62 km away
  12. 2.6Central California · 13276 days ago · 6 km deep · 13 km away
  13. 1.52 km W of San Juan Bautista, California · 13276 days ago · 6 km deep · 13 km away
  14. 2.22 km NNW of Seacliff, California · 13276 days ago · 5 km deep · 49 km away
  15. 2.89 km ESE of Livermore, California · 13275 days ago · 9 km deep · 99 km away
  16. 1.719 km SSE of Tres Pinos, California · 13275 days ago · 5 km deep · 24 km away
  17. 2.526 km WSW of Mendota, California · 13274 days ago · -1 km deep · 73 km away
  18. 1.95 km NNW of Aromas, California · 13274 days ago · 10 km deep · 27 km away
  19. 1.529 km SSW of South Dos Palos, California · 13274 days ago · 5 km deep · 59 km away
  20. 2.129 km SSW of South Dos Palos, California · 13273 days ago · 0 km deep · 59 km away
  21. 1.85 km SSW of Ridgemark, California · 13273 days ago · 5 km deep · 7 km away
  22. 1.65 km WNW of San Juan Bautista, California · 13273 days ago · 5 km deep · 16 km away
  23. 2.222 km NNE of Soledad, California · 13273 days ago · 8 km deep · 28 km away
  24. 3.03 km W of San Juan Bautista, California · 13272 days ago · 6 km deep · 14 km away
  25. 2.53 km W of San Juan Bautista, California · 13272 days ago · 6 km deep · 14 km away
  26. 1.83 km W of San Juan Bautista, California · 13272 days ago · 6 km deep · 15 km away
  27. 1.73 km W of San Juan Bautista, California · 13272 days ago · 6 km deep · 14 km away
  28. 1.93 km W of San Juan Bautista, California · 13272 days ago · 6 km deep · 14 km away
  29. 2.324 km NE of Greenfield, California · 13272 days ago · 5 km deep · 49 km away
  30. 2.83 km W of San Juan Bautista, California · 13272 days ago · 6 km deep · 14 km away
  31. 2.13 km W of San Juan Bautista, California · 13272 days ago · 6 km deep · 14 km away
  32. 2.63 km NNW of Aromas, California · 13272 days ago · 10 km deep · 25 km away
  33. 1.917 km NE of East Foothills, California · 13271 days ago · 7 km deep · 85 km away
  34. 3.22 km ESE of Aromas, California · 13271 days ago · 7 km deep · 20 km away
  35. 1.63 km W of San Juan Bautista, California · 13271 days ago · 6 km deep · 14 km away
  36. 1.524 km NE of Greenfield, California · 13271 days ago · 5 km deep · 51 km away
  37. 1.82 km E of Aromas, California · 13270 days ago · 4 km deep · 20 km away
  38. 1.822 km NNE of Soledad, California · 13270 days ago · 2 km deep · 28 km away
  39. 2.91 km ENE of Aromas, California · 13270 days ago · 6 km deep · 21 km away
  40. 1.76 km ENE of Corralitos, California · 13269 days ago · 9 km deep · 38 km away
  41. 2.113 km SSE of Tres Pinos, California · 13268 days ago · 4 km deep · 18 km away
  42. 2.64 km ESE of Interlaken, California · 13267 days ago · 11 km deep · 28 km away
  43. 1.93 km W of San Juan Bautista, California · 13266 days ago · 7 km deep · 14 km away
  44. 1.6Central California · 13264 days ago · 8 km deep · 43 km away
  45. 3.315 km E of Seven Trees, California · 13264 days ago · 6 km deep · 61 km away
  46. 1.63 km ENE of Corralitos, California · 13263 days ago · 14 km deep · 38 km away
  47. 1.51 km NNE of Interlaken, California · 13263 days ago · 13 km deep · 33 km away
  48. 1.94 km W of San Juan Bautista, California · 13263 days ago · 8 km deep · 15 km away
  49. 2.622 km ENE of Soledad, California · 13263 days ago · 8 km deep · 43 km away
  50. 1.81 km NE of Aromas, California · 13263 days ago · 5 km deep · 21 km away
  51. 1.512 km NNE of Morgan Hill, California · 13263 days ago · 4 km deep · 55 km away
  52. 2.04 km WNW of Day Valley, California · 13262 days ago · 17 km deep · 51 km away
  53. 1.97 km N of Day Valley, California · 13262 days ago · 5 km deep · 52 km away
  54. 1.710 km WSW of Morgan Hill, California · 13261 days ago · 2 km deep · 47 km away
  55. 2.39 km NNW of Big Sur, California · 13260 days ago · 12 km deep · 59 km away
  56. 1.63 km E of Saratoga, California · 13260 days ago · 7 km deep · 73 km away
  57. 1.823 km NE of San Ardo, California · 13260 days ago · 7 km deep · 89 km away
  58. 1.924 km ENE of Soledad, California · 13260 days ago · 6 km deep · 42 km away
  59. 2.621 km NE of Soledad, California · 13260 days ago · 2 km deep · 34 km away
  60. 1.91 km SW of Saratoga, California · 13259 days ago · 6 km deep · 75 km away

The first 60 of 176.

Before

  1. 1.85 km SSW of Davenport, California · 13280 days ago · 3 km deep · 71 km away
  2. 2.331 km ENE of Soledad, California · 13280 days ago · 8 km deep · 43 km away
  3. 1.823 km NE of Soledad, California · 13280 days ago · 9 km deep · 37 km away
  4. 2.37 km S of Sunol, California · 13280 days ago · 10 km deep · 93 km away
  5. 2.05 km ESE of Interlaken, California · 13281 days ago · 11 km deep · 27 km away
  6. 1.92 km WSW of San Juan Bautista, California · 13282 days ago · 4 km deep · 13 km away
  7. 1.715 km ESE of Tres Pinos, California · 13282 days ago · 1 km deep · 26 km away
  8. 1.91 km NE of Aromas, California · 13282 days ago · 5 km deep · 22 km away
  9. 1.62 km SSW of Lexington Hills, California · 13283 days ago · 11 km deep · 63 km away
  10. 1.730 km ENE of Soledad, California · 13283 days ago · 8 km deep · 44 km away
  11. 1.64 km E of Interlaken, California · 13283 days ago · 11 km deep · 29 km away
  12. 1.69 km WSW of Volta, California · 13283 days ago · 7 km deep · 52 km away
  13. 2.020 km SSE of Tres Pinos, California · 13284 days ago · 5 km deep · 26 km away
  14. 2.224 km NE of Greenfield, California · 13284 days ago · 1 km deep · 50 km away
  15. 1.71 km W of Loyola, California · 13284 days ago · 3 km deep · 88 km away
  16. 1.815 km SSE of Tres Pinos, California · 13284 days ago · 7 km deep · 20 km away
  17. 1.815 km SSE of Tres Pinos, California · 13284 days ago · 7 km deep · 20 km away
  18. 2.615 km SSE of Tres Pinos, California · 13285 days ago · 7 km deep · 20 km away
  19. 1.615 km SSE of Tres Pinos, California · 13285 days ago · 7 km deep · 20 km away
  20. 2.29 km NNW of Boulder Creek, California · 13285 days ago · 4 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc158321. Read Sat, Oct 3, 2026, 2:00 PM UTC.