California earthquakes

M2.1 earthquake 10 km WSW of Ridgemark, California

A magnitude 2.1 earthquake struck 10 km WSW of Ridgemark, California on Mon, May 14, 1979, 8:07 AM PDT (15:07 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.4 23 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
2.1 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1979-05-14 15:07:06 UTC
Depth
6.8 km (4.2 mi), shallow
Epicenter
36.769° N, 121.469° 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
±0.23
Depth from
From location
Station coverage gap
44°
Stations used
40

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 140 in the 60 days after this one and 83 in the 30 days before it.

After

  1. 2.925 km WNW of Coalinga, California · 17308 days ago · 6 km deep · 98 km away
  2. 1.614 km E of Seven Trees, California · 17307 days ago · 5 km deep · 63 km away
  3. 2.59 km S of Tres Pinos, California · 17305 days ago · 4 km deep · 14 km away
  4. 1.612 km SW of Tres Pinos, California · 17305 days ago · 9 km deep · 9 km away
  5. 1.825 km NNE of King City, California · 17305 days ago · 1 km deep · 60 km away
  6. 2.05 km SE of Aromas, California · 17304 days ago · 6 km deep · 15 km away
  7. 3.110 km WSW of Three Rocks, California · 17304 days ago · 5 km deep · 93 km away
  8. 1.89 km S of Tres Pinos, California · 17303 days ago · 2 km deep · 14 km away
  9. 2.725 km WSW of Volta, California · 17300 days ago · 3 km deep · 37 km away
  10. 2.525 km WSW of Volta, California · 17300 days ago · 4 km deep · 37 km away
  11. 2.27 km W of Gilroy, California · 17299 days ago · 6 km deep · 30 km away
  12. 2.411 km S of Tres Pinos, California · 17298 days ago · 5 km deep · 16 km away
  13. 1.722 km NNE of Soledad, California · 17297 days ago · 6 km deep · 30 km away
  14. 3.132 km NE of San Lucas, California · 17297 days ago · 9 km deep · 80 km away
  15. 2.432 km NE of San Lucas, California · 17297 days ago · 9 km deep · 80 km away
  16. 2.014 km N of Morgan Hill, California · 17297 days ago · 5 km deep · 57 km away
  17. 1.722 km NNE of Soledad, California · 17296 days ago · 2 km deep · 30 km away
  18. 3.225 km WNW of Coalinga, California · 17295 days ago · 7 km deep · 98 km away
  19. 1.625 km WNW of Coalinga, California · 17295 days ago · 5 km deep · 99 km away
  20. 1.925 km WNW of Coalinga, California · 17295 days ago · 6 km deep · 98 km away
  21. 3.423 km ENE of Soledad, California · 17295 days ago · 4 km deep · 42 km away
  22. 3.323 km ENE of Soledad, California · 17295 days ago · 1 km deep · 42 km away
  23. 1.623 km ENE of Soledad, California · 17295 days ago · 3 km deep · 46 km away
  24. 1.825 km WNW of Coalinga, California · 17294 days ago · 5 km deep · 98 km away
  25. 2.425 km WNW of Coalinga, California · 17294 days ago · 5 km deep · 98 km away
  26. 1.925 km WNW of Coalinga, California · 17294 days ago · 5 km deep · 98 km away
  27. 2.125 km WNW of Coalinga, California · 17294 days ago · 5 km deep · 99 km away
  28. 1.524 km NE of Greenfield, California · 17294 days ago · 5 km deep · 49 km away
  29. 2.112 km S of Tres Pinos, California · 17294 days ago · 5 km deep · 18 km away
  30. 2.725 km WNW of Coalinga, California · 17293 days ago · 5 km deep · 98 km away
  31. 2.223 km ENE of Soledad, California · 17293 days ago · 2 km deep · 42 km away
  32. 2.123 km ENE of Soledad, California · 17293 days ago · 0 km deep · 42 km away
  33. 2.023 km ENE of Soledad, California · 17293 days ago · 4 km deep · 42 km away
  34. 1.823 km ENE of Soledad, California · 17293 days ago · 1 km deep · 42 km away
  35. 2.330 km SE of Tres Pinos, California · 17293 days ago · 11 km deep · 41 km away
  36. 2.123 km ENE of Soledad, California · 17293 days ago · 0 km deep · 46 km away
  37. 2.023 km ENE of Soledad, California · 17293 days ago · 1 km deep · 43 km away
  38. 1.923 km ENE of Soledad, California · 17293 days ago · -1 km deep · 43 km away
  39. 3.123 km ENE of Soledad, California · 17292 days ago · 1 km deep · 42 km away
  40. 1.82 km E of San Ardo, California · 17292 days ago · 10 km deep · 98 km away
  41. 1.826 km W of Coalinga, California · 17292 days ago · 3 km deep · 98 km away
  42. 2.015 km E of East Foothills, California · 17291 days ago · 6 km deep · 73 km away
  43. 2.125 km WNW of Coalinga, California · 17291 days ago · 5 km deep · 99 km away
  44. 1.925 km WNW of Coalinga, California · 17291 days ago · 6 km deep · 99 km away
  45. 1.916 km SSE of Tres Pinos, California · 17290 days ago · 4 km deep · 23 km away
  46. 1.9Northern California · 17290 days ago · 5 km deep · 33 km away
  47. 1.89 km SE of Sunol, California · 17289 days ago · 5 km deep · 91 km away
  48. 1.722 km ENE of Soledad, California · 17289 days ago · 2 km deep · 43 km away
  49. 2.623 km ENE of Soledad, California · 17288 days ago · 2 km deep · 43 km away
  50. 1.924 km ENE of Soledad, California · 17288 days ago · 0 km deep · 42 km away
  51. 2.49 km SE of Sunol, California · 17288 days ago · 5 km deep · 91 km away
  52. 2.33 km E of Aromas, California · 17288 days ago · 2 km deep · 17 km away
  53. 1.825 km WNW of Coalinga, California · 17287 days ago · 6 km deep · 98 km away
  54. 1.524 km NE of Greenfield, California · 17287 days ago · 7 km deep · 49 km away
  55. 1.814 km N of Morgan Hill, California · 17287 days ago · 7 km deep · 57 km away
  56. 1.66 km SSE of Gilroy, California · 17287 days ago · 4 km deep · 21 km away
  57. 2.33 km W of San Juan Bautista, California · 17287 days ago · 6 km deep · 13 km away
  58. 2.523 km ENE of Soledad, California · 17287 days ago · 1 km deep · 43 km away
  59. 2.313 km ENE of Big Sur, California · 17287 days ago · 10 km deep · 55 km away
  60. 1.925 km WNW of Coalinga, California · 17285 days ago · 7 km deep · 99 km away

The first 60 of 140.

Before

  1. 1.69 km S of Tres Pinos, California · 17308 days ago · 2 km deep · 14 km away
  2. 1.82 km S of Hollister, California · 17309 days ago · 5 km deep · 9 km away
  3. 1.925 km WNW of Coalinga, California · 17309 days ago · 6 km deep · 98 km away
  4. 1.825 km WNW of Coalinga, California · 17309 days ago · 6 km deep · 99 km away
  5. 2.025 km WNW of Coalinga, California · 17309 days ago · 5 km deep · 98 km away
  6. 2.226 km WNW of Coalinga, California · 17309 days ago · 2 km deep · 98 km away
  7. 2.125 km WNW of Coalinga, California · 17309 days ago · 6 km deep · 99 km away
  8. 1.723 km ENE of Soledad, California · 17310 days ago · 6 km deep · 47 km away
  9. 1.511 km S of Tres Pinos, California · 17310 days ago · 4 km deep · 16 km away
  10. 1.625 km NE of Soledad, California · 17310 days ago · 8 km deep · 38 km away
  11. 2.022 km NE of San Ardo, California · 17310 days ago · 6 km deep · 91 km away
  12. 3.09 km SE of San Juan Bautista, California · 17310 days ago · 4 km deep · 1 km away
  13. 1.616 km SSE of Tres Pinos, California · 17311 days ago · 5 km deep · 22 km away
  14. 1.97 km E of Gilroy, California · 17312 days ago · 5 km deep · 27 km away
  15. 1.911 km S of Tres Pinos, California · 17312 days ago · 4 km deep · 16 km away
  16. 1.75 km SSW of Tres Pinos, California · 17313 days ago · 7 km deep · 12 km away
  17. 1.730 km SW of South Dos Palos, California · 17313 days ago · 2 km deep · 53 km away
  18. 1.515 km ESE of Tres Pinos, California · 17313 days ago · 8 km deep · 27 km away
  19. 2.425 km NE of Greenfield, California · 17313 days ago · 5 km deep · 54 km away
  20. 2.324 km NNE of King City, California · 17313 days ago · 5 km deep · 59 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1045800. Read Fri, Oct 2, 2026, 8:34 AM UTC.