California earthquakes

M1.7 earthquake 21 km NE of Soledad, California

A magnitude 1.7 earthquake struck 21 km NE of Soledad, California on Mon, Dec 25, 1978, 8:35 AM PST (16:35 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.0 14 km S of Tres Pinos, California. This one was a foreshock.

Soledad forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
1.7 (md), micro
Local time
UTC
1978-12-25 16:35:55 UTC
Depth
7.9 km (4.9 mi), shallow
Epicenter
36.543° N, 121.137° 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, 0.5 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
57°
Stations used
30

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 149 in the 60 days after this one and 56 in the 30 days before it.

After

  1. 1.68 km N of Interlaken, California · 17446 days ago · 11 km deep · 75 km away
  2. 2.08 km N of Interlaken, California · 17446 days ago · 11 km deep · 75 km away
  3. 3.025 km ENE of San Ardo, California · 17444 days ago · 4 km deep · 68 km away
  4. 2.82 km SSW of Hollister, California · 17443 days ago · 9 km deep · 41 km away
  5. 1.621 km NE of San Ardo, California · 17442 days ago · 3 km deep · 52 km away
  6. 2.114 km E of Seven Trees, California · 17442 days ago · 3 km deep · 96 km away
  7. 2.123 km NE of San Ardo, California · 17441 days ago · 7 km deep · 51 km away
  8. 1.85 km NNE of Morgan Hill, California · 17440 days ago · 7 km deep · 84 km away
  9. 1.823 km NW of Parkfield, California · 17439 days ago · 1 km deep · 72 km away
  10. 3.310 km SSE of Tres Pinos, California · 17437 days ago · 5 km deep · 22 km away
  11. 3.46km WNW of Castroville, CA · 17437 days ago · 6 km deep · 67 km away
  12. 2.59 km SSE of Tres Pinos, California · 17437 days ago · 5 km deep · 23 km away
  13. 1.919 km WSW of Diablo Grande, California · 17437 days ago · 8 km deep · 91 km away
  14. 2.024 km ENE of Soledad, California · 17437 days ago · 3 km deep · 8 km away
  15. 2.021 km NE of Soledad, California · 17437 days ago · 2 km deep · 5 km away
  16. 2.227 km NW of San Simeon, California · 17437 days ago · 11 km deep · 85 km away
  17. 1.534 km ENE of Soledad, California · 17436 days ago · 6 km deep · 13 km away
  18. 1.83 km S of San Ardo, California · 17436 days ago · 9 km deep · 65 km away
  19. 2.815 km NW of Parkfield, California · 17436 days ago · 5 km deep · 79 km away
  20. 1.921 km NE of Soledad, California · 17436 days ago · 4 km deep · 6 km away
  21. 2.122 km NE of Soledad, California · 17435 days ago · 2 km deep · 1 km away
  22. 2.48 km NE of Gilroy, California · 17435 days ago · 7 km deep · 65 km away
  23. 3.810 km ESE of Coalinga, California · 17433 days ago · 10 km deep · 93 km away
  24. 2.310 km ESE of Coalinga, California · 17433 days ago · 9 km deep · 93 km away
  25. 2.311 km ESE of Coalinga, California · 17433 days ago · 9 km deep · 94 km away
  26. 2.210 km ESE of Coalinga, California · 17433 days ago · 10 km deep · 93 km away
  27. 2.48 km NE of Interlaken, California · 17433 days ago · 4 km deep · 69 km away
  28. 2.810 km ESE of Coalinga, California · 17433 days ago · 10 km deep · 93 km away
  29. 2.110 km ESE of Coalinga, California · 17433 days ago · 9 km deep · 93 km away
  30. 1.59 km SE of Coalinga, California · 17433 days ago · 8 km deep · 93 km away
  31. 2.11 km N of Tres Pinos, California · 17432 days ago · 9 km deep · 34 km away
  32. 1.713 km S of Tres Pinos, California · 17431 days ago · 4 km deep · 20 km away
  33. 2.89 km ESE of Coalinga, California · 17431 days ago · 10 km deep · 93 km away
  34. 2.510 km ESE of Coalinga, California · 17431 days ago · 10 km deep · 93 km away
  35. 2.18 km E of San Simeon, California · 17431 days ago · 5 km deep · 100 km away
  36. 1.614 km E of Seven Trees, California · 17431 days ago · 6 km deep · 97 km away
  37. 2.210 km ESE of Gilroy, California · 17431 days ago · 5 km deep · 56 km away
  38. 2.29 km ESE of Gilroy, California · 17431 days ago · 5 km deep · 56 km away
  39. 1.518 km NW of Parkfield, California · 17430 days ago · 4 km deep · 77 km away
  40. 1.62 km SW of Ridgemark, California · 17430 days ago · 7 km deep · 36 km away
  41. 2.38 km NE of Interlaken, California · 17430 days ago · 5 km deep · 69 km away
  42. 1.88 km NE of Interlaken, California · 17430 days ago · 4 km deep · 69 km away
  43. 1.813 km S of Tres Pinos, California · 17429 days ago · 4 km deep · 20 km away
  44. 1.913 km S of Tres Pinos, California · 17429 days ago · 4 km deep · 20 km away
  45. 2.58 km NNE of Interlaken, California · 17429 days ago · 10 km deep · 74 km away
  46. 2.18 km N of Interlaken, California · 17429 days ago · 10 km deep · 75 km away
  47. 3.18 km N of Interlaken, California · 17429 days ago · 10 km deep · 75 km away
  48. 2.38 km N of Interlaken, California · 17429 days ago · 9 km deep · 74 km away
  49. 2.115 km SW of Santa Cruz, California · 17429 days ago · 8 km deep · 97 km away
  50. 1.78 km NW of Hollister, California · 17428 days ago · 6 km deep · 50 km away
  51. 3.123 km NE of King City, California · 17428 days ago · 7 km deep · 30 km away
  52. 2.38 km ENE of San Martin, California · 17426 days ago · 8 km deep · 73 km away
  53. 2.120 km SSE of Tres Pinos, California · 17426 days ago · 6 km deep · 12 km away
  54. 1.521 km SSE of Tres Pinos, California · 17426 days ago · 5 km deep · 11 km away
  55. 1.919 km NW of Parkfield, California · 17425 days ago · 4 km deep · 76 km away
  56. 1.823 km NNE of San Lucas, California · 17424 days ago · 5 km deep · 35 km away
  57. 2.221 km NE of Soledad, California · 17424 days ago · 6 km deep · 3 km away
  58. 1.725 km NE of Greenfield, California · 17423 days ago · 2 km deep · 15 km away
  59. 2.816 km SW of Gustine, California · 17423 days ago · 0 km deep · 69 km away
  60. 2.316 km SW of Gustine, California · 17423 days ago · 6 km deep · 68 km away

The first 60 of 149.

Before

  1. 1.615 km NW of Parkfield, California · 17446 days ago · 5 km deep · 80 km away
  2. 1.816 km SSE of Tres Pinos, California · 17446 days ago · 5 km deep · 16 km away
  3. 1.71 km NE of Tres Pinos, California · 17447 days ago · 8 km deep · 33 km away
  4. 1.66 km NE of Interlaken, California · 17447 days ago · 11 km deep · 69 km away
  5. 2.422 km NNE of Soledad, California · 17447 days ago · 9 km deep · 10 km away
  6. 2.021 km NE of Soledad, California · 17447 days ago · 4 km deep · 4 km away
  7. 1.724 km ENE of Soledad, California · 17449 days ago · 4 km deep · 8 km away
  8. 1.816 km E of Tres Pinos, California · 17449 days ago · 5 km deep · 30 km away
  9. 1.66 km NW of Morgan Hill, California · 17449 days ago · 6 km deep · 86 km away
  10. 1.918 km NW of San Simeon, California · 17452 days ago · 11 km deep · 89 km away
  11. 3.322 km NE of San Ardo, California · 17453 days ago · 8 km deep · 57 km away
  12. 2.221 km NE of Soledad, California · 17454 days ago · 4 km deep · 6 km away
  13. 2.010 km S of Tres Pinos, California · 17454 days ago · 5 km deep · 25 km away
  14. 1.521 km NE of Soledad, California · 17455 days ago · 6 km deep · 1 km away
  15. 1.921 km NE of Soledad, California · 17455 days ago · 5 km deep · 1 km away
  16. 1.721 km NE of Soledad, California · 17455 days ago · 7 km deep · 2 km away
  17. 1.616 km SSE of Tres Pinos, California · 17455 days ago · 8 km deep · 16 km away
  18. 2.621 km NE of Soledad, California · 17455 days ago · 4 km deep · 5 km away
  19. 2.322 km NE of San Ardo, California · 17457 days ago · 5 km deep · 52 km away
  20. 3.123 km NE of San Ardo, California · 17457 days ago · 7 km deep · 52 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1043879. Read Wed, Sep 30, 2026, 11:48 AM UTC.