California earthquakes

M1.8 earthquake 7 km SW of Gilroy, California

A magnitude 1.8 earthquake struck 7 km SW of Gilroy, California on Thu, Oct 30, 1986, 6:26 PM PST (02:26 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M4.1 16 km SSE of Livermore, California. This one was a foreshock.

Gilroy 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
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1986-10-31 02:26:17 UTC
Depth
3.7 km (2.3 mi), shallow
Epicenter
36.961° N, 121.635° 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
±0.16
Depth from
From location
Station coverage gap
43°
Stations used
41

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 166 in the 60 days after this one and 104 in the 30 days before it.

After

  1. 1.97 km SW of Gilroy, California · 14582 days ago · 4 km deep · 0 km away
  2. 3.55 km S of Gilroy, California · 14582 days ago · 5 km deep · 6 km away
  3. 1.615 km ENE of East Foothills, California · 14581 days ago · 9 km deep · 55 km away
  4. 1.82 km W of San Juan Bautista, California · 14581 days ago · 6 km deep · 14 km away
  5. 1.728 km SW of South Dos Palos, California · 14581 days ago · 7 km deep · 73 km away
  6. 2.55 km S of Gilroy, California · 14581 days ago · 6 km deep · 6 km away
  7. 2.911 km ESE of East Foothills, California · 14581 days ago · 7 km deep · 42 km away
  8. 3.411 km ESE of East Foothills, California · 14581 days ago · 7 km deep · 42 km away
  9. 1.711 km ESE of East Foothills, California · 14581 days ago · 7 km deep · 42 km away
  10. 2.49 km ESE of East Foothills, California · 14581 days ago · 7 km deep · 45 km away
  11. 1.97 km ESE of East Foothills, California · 14580 days ago · 5 km deep · 46 km away
  12. 2.317 km NE of East Foothills, California · 14580 days ago · 8 km deep · 60 km away
  13. 1.920 km S of Big Sur, California · 14580 days ago · 17 km deep · 98 km away
  14. 1.616 km SSE of Tres Pinos, California · 14579 days ago · 3 km deep · 48 km away
  15. 1.614 km NNE of East Foothills, California · 14578 days ago · 5 km deep · 61 km away
  16. 2.519 km NE of East Foothills, California · 14578 days ago · 6 km deep · 62 km away
  17. 1.59 km NNE of Milpitas, California · 14578 days ago · 8 km deep · 63 km away
  18. 1.822 km NNE of Soledad, California · 14578 days ago · 6 km deep · 55 km away
  19. 2.55 km NE of Tres Pinos, California · 14578 days ago · 9 km deep · 36 km away
  20. 1.518 km NE of East Foothills, California · 14578 days ago · 6 km deep · 60 km away
  21. 2.07 km SSW of Chualar, California · 14577 days ago · 5 km deep · 50 km away
  22. 1.67 km ESE of East Foothills, California · 14577 days ago · 0 km deep · 44 km away
  23. 2.018 km SSE of Livermore, California · 14577 days ago · 8 km deep · 63 km away
  24. 2.218 km NE of East Foothills, California · 14577 days ago · 6 km deep · 61 km away
  25. 1.99 km WSW of Ridgemark, California · 14576 days ago · 0 km deep · 25 km away
  26. 1.614 km N of Morgan Hill, California · 14576 days ago · 6 km deep · 33 km away
  27. 1.76 km NE of Ridgemark, California · 14576 days ago · 5 km deep · 30 km away
  28. 1.617 km NE of East Foothills, California · 14576 days ago · 7 km deep · 61 km away
  29. 1.66 km NE of East Foothills, California · 14576 days ago · 4 km deep · 53 km away
  30. 1.86 km NNW of Greenfield, California · 14576 days ago · 5 km deep · 73 km away
  31. 1.717 km NE of East Foothills, California · 14575 days ago · 6 km deep · 61 km away
  32. 2.220 km SSW of Gonzales, California · 14575 days ago · 50 km deep · 68 km away
  33. 1.828 km NE of Soledad, California · 14575 days ago · 9 km deep · 64 km away
  34. 1.65 km SE of Tres Pinos, California · 14575 days ago · 8 km deep · 39 km away
  35. 1.919 km ESE of Tres Pinos, California · 14575 days ago · 1 km deep · 53 km away
  36. 2.016 km SSE of Livermore, California · 14575 days ago · 5 km deep · 66 km away
  37. 1.919 km NE of East Foothills, California · 14575 days ago · 6 km deep · 62 km away
  38. 1.63 km NE of Tres Pinos, California · 14574 days ago · 8 km deep · 35 km away
  39. 2.14 km S of San Juan Bautista, California · 14574 days ago · 8 km deep · 19 km away
  40. 1.82 km ESE of Danville, California · 14574 days ago · 8 km deep · 99 km away
  41. 2.125 km ENE of Greenfield, California · 14573 days ago · 1 km deep · 80 km away
  42. 2.33 km SW of Communications Hill, California · 14573 days ago · 13 km deep · 41 km away
  43. 1.96 km NE of Hollister, California · 14573 days ago · 7 km deep · 27 km away
  44. 1.84 km ENE of Tres Pinos, California · 14573 days ago · 8 km deep · 37 km away
  45. 1.615 km E of Seven Trees, California · 14572 days ago · 3 km deep · 36 km away
  46. 2.213 km ENE of East Foothills, California · 14572 days ago · 6 km deep · 53 km away
  47. 1.77 km NE of Ridgemark, California · 14572 days ago · 5 km deep · 31 km away
  48. 1.612 km NE of East Foothills, California · 14572 days ago · 7 km deep · 57 km away
  49. 1.616 km SSE of Livermore, California · 14571 days ago · 3 km deep · 67 km away
  50. 2.018 km SSE of Tres Pinos, California · 14571 days ago · 5 km deep · 50 km away
  51. 2.15 km SSE of Castroville, California · 14571 days ago · 2 km deep · 29 km away
  52. 1.7Central California · 14570 days ago · 10 km deep · 5 km away
  53. 1.726 km ENE of Greenfield, California · 14569 days ago · 8 km deep · 81 km away
  54. 1.516 km NE of East Foothills, California · 14569 days ago · 3 km deep · 58 km away
  55. 2.112 km SSE of Tres Pinos, California · 14569 days ago · 5 km deep · 44 km away
  56. 1.722 km ENE of Soledad, California · 14569 days ago · 9 km deep · 68 km away
  57. 1.712 km SSE of Livermore, California · 14568 days ago · 4 km deep · 70 km away
  58. 2.119 km S of Big Sur, California · 14567 days ago · 17 km deep · 98 km away
  59. 1.69 km NE of Gilroy, California · 14567 days ago · 8 km deep · 17 km away
  60. 1.66 km NE of Ridgemark, California · 14567 days ago · 5 km deep · 31 km away

The first 60 of 166.

Before

  1. 3.12 km WSW of San Juan Bautista, California · 14583 days ago · 6 km deep · 15 km away
  2. 1.612 km NE of East Foothills, California · 14583 days ago · 2 km deep · 56 km away
  3. 1.54 km NNE of Tres Pinos, California · 14585 days ago · 5 km deep · 34 km away
  4. 2.019 km S of Big Sur, California · 14585 days ago · 15 km deep · 97 km away
  5. 2.517 km NE of East Foothills, California · 14586 days ago · 8 km deep · 61 km away
  6. 2.111 km NE of East Foothills, California · 14586 days ago · 3 km deep · 56 km away
  7. 3.69 km NE of Morgan Hill, California · 14586 days ago · 7 km deep · 25 km away
  8. 2.511 km ESE of East Foothills, California · 14587 days ago · 7 km deep · 42 km away
  9. 1.88 km ENE of Tres Pinos, California · 14587 days ago · 8 km deep · 40 km away
  10. 1.68 km ENE of Tres Pinos, California · 14588 days ago · 8 km deep · 40 km away
  11. 1.511 km ESE of East Foothills, California · 14588 days ago · 7 km deep · 42 km away
  12. 1.511 km ESE of East Foothills, California · 14588 days ago · 7 km deep · 42 km away
  13. 2.29 km ENE of Milpitas, California · 14588 days ago · 3 km deep · 59 km away
  14. 1.724 km NE of Greenfield, California · 14588 days ago · 6 km deep · 77 km away
  15. 1.822 km NE of Soledad, California · 14588 days ago · 3 km deep · 58 km away
  16. 1.612 km ESE of East Foothills, California · 14588 days ago · 6 km deep · 41 km away
  17. 1.76 km SSW of Gilroy, California · 14589 days ago · 6 km deep · 2 km away
  18. 2.412 km SSE of Livermore, California · 14590 days ago · 3 km deep · 70 km away
  19. 1.77 km N of East Foothills, California · 14590 days ago · 7 km deep · 57 km away
  20. 2.46 km SE of Pescadero, California · 14591 days ago · 14 km deep · 68 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc86859. Read Sat, Oct 3, 2026, 7:42 AM UTC.