California earthquakes

M2.0 earthquake 4 km NE of Ridgemark, California

A magnitude 2.0 earthquake struck 4 km NE of Ridgemark, California on Tue, Nov 14, 1978, 9:38 PM PST (05:38 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.6 5 km E 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
2.0 (md), micro
Local time
UTC
1978-11-15 05:38:42 UTC
Depth
7.8 km (4.8 mi), shallow
Epicenter
36.847° N, 121.331° 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
±0.10
Depth from
From location
Station coverage gap
51°
Stations used
46

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 125 in the 60 days after this one and 72 in the 30 days before it.

After

  1. 2.39 km S of Tres Pinos, California · 17485 days ago · 4 km deep · 16 km away
  2. 1.916 km ENE of East Foothills, California · 17485 days ago · 6 km deep · 69 km away
  3. 1.621 km NE of Soledad, California · 17484 days ago · 7 km deep · 32 km away
  4. 2.113 km SW of Santa Cruz, California · 17482 days ago · 6 km deep · 72 km away
  5. 1.710 km WSW of Santa Cruz, California · 17482 days ago · 12 km deep · 72 km away
  6. 1.723 km NE of San Ardo, California · 17481 days ago · 7 km deep · 89 km away
  7. 3.024 km ENE of Greenfield, California · 17481 days ago · 7 km deep · 57 km away
  8. 1.822 km NNE of Soledad, California · 17480 days ago · 6 km deep · 30 km away
  9. 1.810 km ESE of East Foothills, California · 17480 days ago · 8 km deep · 65 km away
  10. 1.510 km ESE of East Foothills, California · 17480 days ago · 8 km deep · 65 km away
  11. 2.119 km SSE of Tres Pinos, California · 17479 days ago · 5 km deep · 25 km away
  12. 2.18 km SSW of Tres Pinos, California · 17479 days ago · 2 km deep · 14 km away
  13. 1.74 km E of Livermore, California · 17477 days ago · 9 km deep · 99 km away
  14. 2.024 km NE of Greenfield, California · 17477 days ago · 6 km deep · 48 km away
  15. 1.98 km ESE of Gilroy, California · 17476 days ago · 5 km deep · 20 km away
  16. 1.99 km ESE of Gilroy, California · 17476 days ago · 5 km deep · 20 km away
  17. 1.6Central California · 17476 days ago · 3 km deep · 15 km away
  18. 1.823 km NE of Soledad, California · 17474 days ago · 8 km deep · 37 km away
  19. 1.69 km SSW of Tres Pinos, California · 17474 days ago · 1 km deep · 16 km away
  20. 2.114 km SE of Livermore, California · 17474 days ago · 1 km deep · 87 km away
  21. 1.621 km NE of Soledad, California · 17472 days ago · 8 km deep · 38 km away
  22. 3.023 km ENE of San Lucas, California · 17471 days ago · 9 km deep · 83 km away
  23. 1.622 km ENE of Soledad, California · 17471 days ago · 4 km deep · 43 km away
  24. 2.42 km SW of San Juan Bautista, California · 17471 days ago · 6 km deep · 20 km away
  25. 2.113 km SSE of Tres Pinos, California · 17470 days ago · 3 km deep · 20 km away
  26. 1.711 km SE of Sunol, California · 17470 days ago · 3 km deep · 86 km away
  27. 1.713 km SSE of Tres Pinos, California · 17470 days ago · 4 km deep · 20 km away
  28. 2.123 km ENE of Soledad, California · 17470 days ago · 4 km deep · 45 km away
  29. 1.930 km WNW of Three Rocks, California · 17469 days ago · 3 km deep · 62 km away
  30. 2.111 km WSW of Carmel Valley Village, California · 17467 days ago · 0 km deep · 66 km away
  31. 2.59 km S of Tres Pinos, California · 17467 days ago · 4 km deep · 16 km away
  32. 2.48 km SE of Sunol, California · 17466 days ago · 10 km deep · 88 km away
  33. 2.421 km NE of Soledad, California · 17466 days ago · 8 km deep · 37 km away
  34. 1.622 km ENE of Soledad, California · 17466 days ago · 2 km deep · 40 km away
  35. 2.622 km ENE of Soledad, California · 17466 days ago · 3 km deep · 40 km away
  36. 1.67 km ENE of Gilroy, California · 17464 days ago · 5 km deep · 24 km away
  37. 1.727 km ENE of Soledad, California · 17464 days ago · 10 km deep · 40 km away
  38. 1.75 km S of Tres Pinos, California · 17463 days ago · 8 km deep · 12 km away
  39. 2.89 km ENE of Patterson, California · 17463 days ago · 14 km deep · 76 km away
  40. 2.419 km WSW of Diablo Grande, California · 17463 days ago · 7 km deep · 53 km away
  41. 1.621 km NE of Soledad, California · 17463 days ago · 7 km deep · 36 km away
  42. 3.129 km ENE of Soledad, California · 17462 days ago · 9 km deep · 41 km away
  43. 1.77 km ENE of Interlaken, California · 17462 days ago · 2 km deep · 32 km away
  44. 1.923 km NE of King City, California · 17462 days ago · 6 km deep · 63 km away
  45. 1.87 km NNW of Hollister, California · 17462 days ago · 2 km deep · 12 km away
  46. 1.69 km NNW of Hollister, California · 17461 days ago · 7 km deep · 14 km away
  47. 2.39 km NNW of Hollister, California · 17461 days ago · 6 km deep · 15 km away
  48. 2.4Central California · 17460 days ago · 7 km deep · 22 km away
  49. 1.53 km NNW of Hollister, California · 17460 days ago · 6 km deep · 9 km away
  50. 1.528 km ENE of Soledad, California · 17459 days ago · 8 km deep · 42 km away
  51. 1.721 km SSE of Tres Pinos, California · 17459 days ago · 2 km deep · 28 km away
  52. 2.122 km NE of Soledad, California · 17458 days ago · 4 km deep · 31 km away
  53. 2.024 km NE of Greenfield, California · 17457 days ago · 7 km deep · 48 km away
  54. 3.123 km NE of San Ardo, California · 17457 days ago · 7 km deep · 89 km away
  55. 2.322 km NE of San Ardo, California · 17457 days ago · 5 km deep · 89 km away
  56. 2.621 km NE of Soledad, California · 17455 days ago · 4 km deep · 33 km away
  57. 1.616 km SSE of Tres Pinos, California · 17455 days ago · 8 km deep · 23 km away
  58. 1.721 km NE of Soledad, California · 17455 days ago · 7 km deep · 36 km away
  59. 1.921 km NE of Soledad, California · 17455 days ago · 5 km deep · 39 km away
  60. 1.521 km NE of Soledad, California · 17454 days ago · 6 km deep · 39 km away

The first 60 of 125.

Before

  1. 1.89 km ESE of East Foothills, California · 17486 days ago · 8 km deep · 66 km away
  2. 2.08 km ESE of East Foothills, California · 17486 days ago · 8 km deep · 67 km away
  3. 2.021 km NE of Soledad, California · 17486 days ago · 2 km deep · 34 km away
  4. 2.128 km NE of Greenfield, California · 17486 days ago · 6 km deep · 48 km away
  5. 1.728 km SW of South Dos Palos, California · 17487 days ago · 10 km deep · 40 km away
  6. 3.121 km NE of Soledad, California · 17487 days ago · 3 km deep · 35 km away
  7. 1.69 km S of Tres Pinos, California · 17487 days ago · 4 km deep · 16 km away
  8. 2.522 km NE of San Lucas, California · 17488 days ago · 6 km deep · 80 km away
  9. 2.522 km WSW of Three Rocks, California · 17488 days ago · 16 km deep · 76 km away
  10. 2.921 km NE of Soledad, California · 17488 days ago · 6 km deep · 36 km away
  11. 2.821 km NE of Soledad, California · 17489 days ago · 7 km deep · 36 km away
  12. 1.616 km E of East Foothills, California · 17489 days ago · 4 km deep · 65 km away
  13. 1.724 km SE of Tres Pinos, California · 17489 days ago · 5 km deep · 30 km away
  14. 2.017 km ENE of East Foothills, California · 17489 days ago · 5 km deep · 69 km away
  15. 2.14 km SSE of San Juan Bautista, California · 17489 days ago · 4 km deep · 17 km away
  16. 2.423 km SSW of Volta, California · 17489 days ago · 4 km deep · 25 km away
  17. 2.228 km NE of Greenfield, California · 17490 days ago · 7 km deep · 48 km away
  18. 2.921 km NE of Soledad, California · 17490 days ago · 2 km deep · 33 km away
  19. 2.024 km NE of Soledad, California · 17490 days ago · 9 km deep · 39 km away
  20. 2.125 km ENE of Soledad, California · 17490 days ago · 8 km deep · 40 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1043389. Read Tue, Sep 29, 2026, 11:04 PM UTC.