California earthquakes

M1.7 earthquake 9 km NNE of Milpitas, California

A magnitude 1.7 earthquake struck 9 km NNE of Milpitas, California on Mon, Oct 6, 1986, 4:17 PM PDT (23:17 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.2 1 km SSW of Diablo, California. This one was a foreshock.

Milpitas 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
1.7 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1986-10-06 23:17:02 UTC
Depth
8.1 km (5.0 mi), shallow
Epicenter
37.507° N, 121.853° 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
±0.23
Depth from
From location
Station coverage gap
76°
Stations used
33

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 155 in the 60 days after this one and 66 in the 30 days before it.

After

  1. 1.85 km S of Castroville, California · 14607 days ago · 5 km deep · 88 km away
  2. 3.015 km E of Seven Trees, California · 14605 days ago · 4 km deep · 30 km away
  3. 1.811 km NNE of Livermore, California · 14605 days ago · 7 km deep · 32 km away
  4. 2.414 km N of Morgan Hill, California · 14605 days ago · 5 km deep · 33 km away
  5. 2.517 km NE of East Foothills, California · 14604 days ago · 8 km deep · 14 km away
  6. 2.05 km NNE of Tres Pinos, California · 14604 days ago · 7 km deep · 90 km away
  7. 1.518 km NE of East Foothills, California · 14604 days ago · 6 km deep · 15 km away
  8. 1.69 km ESE of East Foothills, California · 14604 days ago · 5 km deep · 21 km away
  9. 1.86 km NE of East Foothills, California · 14604 days ago · 4 km deep · 12 km away
  10. 4.21 km SSW of Diablo, California · 14603 days ago · 9 km deep · 36 km away
  11. 1.92 km SSW of Diablo, California · 14603 days ago · 7 km deep · 36 km away
  12. 1.62 km ESE of Danville, California · 14603 days ago · 7 km deep · 36 km away
  13. 2.02 km ESE of Danville, California · 14603 days ago · 7 km deep · 36 km away
  14. 3.21 km SSW of Diablo, California · 14603 days ago · 9 km deep · 36 km away
  15. 2.05 km SE of Tres Pinos, California · 14603 days ago · 6 km deep · 98 km away
  16. 1.62 km SSW of Diablo, California · 14603 days ago · 8 km deep · 36 km away
  17. 1.72 km ESE of Danville, California · 14602 days ago · 8 km deep · 36 km away
  18. 1.72 km ESE of Danville, California · 14602 days ago · 5 km deep · 36 km away
  19. 1.814 km E of Seven Trees, California · 14602 days ago · 2 km deep · 28 km away
  20. 1.613 km ENE of East Foothills, California · 14602 days ago · 8 km deep · 16 km away
  21. 1.616 km NE of East Foothills, California · 14601 days ago · 3 km deep · 17 km away
  22. 1.73 km E of Discovery Bay, California · 14601 days ago · 12 km deep · 51 km away
  23. 2.19 km NNE of Livermore, California · 14600 days ago · 12 km deep · 30 km away
  24. 2.36 km ENE of Hollister, California · 14600 days ago · 7 km deep · 83 km away
  25. 1.62 km ESE of Danville, California · 14599 days ago · 7 km deep · 36 km away
  26. 2.110 km SE of Seven Trees, California · 14599 days ago · 7 km deep · 33 km away
  27. 2.3Central California · 14599 days ago · 4 km deep · 89 km away
  28. 1.85 km ENE of Hollister, California · 14599 days ago · 6 km deep · 83 km away
  29. 2.65 km NE of Hollister, California · 14599 days ago · 7 km deep · 83 km away
  30. 1.94 km WNW of Tracy, California · 14598 days ago · 6 km deep · 43 km away
  31. 2.05 km WSW of Salinas, California · 14598 days ago · 5 km deep · 95 km away
  32. 1.618 km NE of East Foothills, California · 14598 days ago · 6 km deep · 15 km away
  33. 2.53 km NNE of San Leandro, California · 14597 days ago · 7 km deep · 37 km away
  34. 2.43 km NNE of San Leandro, California · 14597 days ago · 7 km deep · 37 km away
  35. 1.74 km SSE of San Juan Bautista, California · 14597 days ago · 4 km deep · 83 km away
  36. 1.86 km NE of Hollister, California · 14597 days ago · 7 km deep · 83 km away
  37. 1.86 km NE of Hollister, California · 14597 days ago · 6 km deep · 82 km away
  38. 1.611 km ENE of Blackhawk, California · 14597 days ago · 9 km deep · 39 km away
  39. 2.86 km ENE of Hollister, California · 14596 days ago · 6 km deep · 83 km away
  40. 1.510 km ENE of Blackhawk, California · 14596 days ago · 10 km deep · 39 km away
  41. 1.56 km ENE of Hollister, California · 14596 days ago · 6 km deep · 83 km away
  42. 2.56 km ENE of Hollister, California · 14596 days ago · 6 km deep · 83 km away
  43. 1.55 km NE of Hollister, California · 14596 days ago · 6 km deep · 83 km away
  44. 2.56 km ENE of Hollister, California · 14596 days ago · 7 km deep · 83 km away
  45. 1.518 km NE of East Foothills, California · 14596 days ago · 7 km deep · 15 km away
  46. 1.76 km NE of Interlaken, California · 14596 days ago · 3 km deep · 60 km away
  47. 1.67 km NE of Interlaken, California · 14596 days ago · 2 km deep · 60 km away
  48. 2.66 km NE of Interlaken, California · 14596 days ago · 3 km deep · 60 km away
  49. 1.7Northern California · 14596 days ago · 2 km deep · 17 km away
  50. 1.76 km NE of Hollister, California · 14595 days ago · 7 km deep · 83 km away
  51. 1.58 km ENE of Tres Pinos, California · 14595 days ago · 8 km deep · 95 km away
  52. 1.611 km S of San Juan Bautista, California · 14595 days ago · 8 km deep · 89 km away
  53. 1.82 km ENE of Berkeley, California · 14594 days ago · 9 km deep · 54 km away
  54. 1.75 km SSW of Gilroy, California · 14594 days ago · 2 km deep · 64 km away
  55. 2.713 km ENE of East Foothills, California · 14594 days ago · 8 km deep · 16 km away
  56. 2.57 km NE of Interlaken, California · 14593 days ago · 4 km deep · 60 km away
  57. 1.514 km SSE of Livermore, California · 14593 days ago · 2 km deep · 17 km away
  58. 3.34 km SW of Tres Pinos, California · 14592 days ago · 10 km deep · 94 km away
  59. 1.718 km NE of East Foothills, California · 14592 days ago · 5 km deep · 15 km away
  60. 2.46 km SE of Pescadero, California · 14592 days ago · 14 km deep · 54 km away

The first 60 of 155.

Before

  1. 2.01 km SSW of Fairview, California · 14607 days ago · 6 km deep · 25 km away
  2. 1.714 km NE of East Foothills, California · 14607 days ago · 9 km deep · 16 km away
  3. 3.44 km E of Interlaken, California · 14608 days ago · 6 km deep · 63 km away
  4. 2.22 km ENE of Berkeley, California · 14608 days ago · 9 km deep · 54 km away
  5. 2.19 km WNW of Bolinas, California · 14608 days ago · 7 km deep · 95 km away
  6. 2.47 km E of East Foothills, California · 14609 days ago · 6 km deep · 18 km away
  7. 1.73 km ESE of Brentwood, California · 14610 days ago · 1 km deep · 49 km away
  8. 2.47 km E of East Foothills, California · 14611 days ago · 5 km deep · 18 km away
  9. 2.13 km NE of Clyde, California · 14611 days ago · 2 km deep · 62 km away
  10. 2.49 km NNE of Hollister, California · 14611 days ago · 7 km deep · 79 km away
  11. 1.818 km NE of East Foothills, California · 14612 days ago · 6 km deep · 15 km away
  12. 2.318 km NE of East Foothills, California · 14612 days ago · 6 km deep · 15 km away
  13. 1.514 km W of Westley, California · 14612 days ago · 3 km deep · 44 km away
  14. 1.717 km NE of East Foothills, California · 14613 days ago · 9 km deep · 18 km away
  15. 1.68 km NE of Ridgemark, California · 14614 days ago · 7 km deep · 87 km away
  16. 1.64 km NE of San Leandro, California · 14614 days ago · 8 km deep · 36 km away
  17. 2.42 km W of Tres Pinos, California · 14615 days ago · 4 km deep · 91 km away
  18. 2.0Northern California · 14615 days ago · 8 km deep · 15 km away
  19. 1.82 km W of Tres Pinos, California · 14615 days ago · 2 km deep · 92 km away
  20. 2.8Central California · 14615 days ago · 3 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc84957. Read Sat, Oct 3, 2026, 7:46 PM UTC.