California earthquakes

M1.8 earthquake 2 km NNE of Ashland, California

A magnitude 1.8 earthquake struck 2 km NNE of Ashland, California on Mon, Jan 27, 1986, 11:35 AM PST (19:35 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M1.8 9 km ENE of Seven Trees, California. This one was a foreshock.

Ashland 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), micro
Local time
UTC
1986-01-27 19:35:30 UTC
Depth
5.2 km (3.2 mi), shallow
Epicenter
37.712° N, 122.105° 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
±0.13
Depth from
From location
Station coverage gap
121°
Stations used
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 110 in the 60 days after this one and 50 in the 30 days before it.

After

  1. 1.89 km ENE of Seven Trees, California · 14848 days ago · 6 km deep · 55 km away
  2. 2.012 km N of Pittsburg, California · 14847 days ago · 16 km deep · 52 km away
  3. 1.53 km NNE of San Ramon, California · 14847 days ago · 12 km deep · 16 km away
  4. 2.17 km NE of Interlaken, California · 14846 days ago · 10 km deep · 88 km away
  5. 1.75 km SE of Pleasanton, California · 14846 days ago · 5 km deep · 26 km away
  6. 1.512 km NNE of Morgan Hill, California · 14846 days ago · 6 km deep · 67 km away
  7. 1.88 km NE of Morgan Hill, California · 14846 days ago · 3 km deep · 75 km away
  8. 1.64 km SE of Pleasanton, California · 14845 days ago · 5 km deep · 25 km away
  9. 1.74 km SE of Pleasanton, California · 14845 days ago · 5 km deep · 25 km away
  10. 2.54 km SE of Pleasanton, California · 14845 days ago · 4 km deep · 25 km away
  11. 3.14 km SE of Pleasanton, California · 14845 days ago · 6 km deep · 25 km away
  12. 1.64 km SE of Pleasanton, California · 14845 days ago · 5 km deep · 25 km away
  13. 1.54 km SE of Pleasanton, California · 14845 days ago · 5 km deep · 25 km away
  14. 1.512 km SSW of Pescadero, California · 14845 days ago · 14 km deep · 69 km away
  15. 1.64 km ESE of Pleasanton, California · 14845 days ago · 4 km deep · 26 km away
  16. 2.94 km SE of Pleasanton, California · 14845 days ago · 6 km deep · 25 km away
  17. 1.74 km ESE of Pleasanton, California · 14845 days ago · 6 km deep · 26 km away
  18. 1.54 km ESE of Pleasanton, California · 14845 days ago · 5 km deep · 25 km away
  19. 1.84 km ESE of Pleasanton, California · 14845 days ago · 6 km deep · 26 km away
  20. 2.04 km SE of Pleasanton, California · 14845 days ago · 5 km deep · 25 km away
  21. 2.14 km SE of Pleasanton, California · 14845 days ago · 6 km deep · 25 km away
  22. 1.64 km ESE of Pleasanton, California · 14845 days ago · 6 km deep · 25 km away
  23. 2.04 km ESE of Pleasanton, California · 14845 days ago · 7 km deep · 26 km away
  24. 2.115 km N of Morgan Hill, California · 14844 days ago · 2 km deep · 63 km away
  25. 3.14 km ESE of Pleasanton, California · 14844 days ago · 8 km deep · 25 km away
  26. 1.68 km ESE of East Foothills, California · 14844 days ago · 8 km deep · 52 km away
  27. 2.19 km NE of Gilroy, California · 14843 days ago · 8 km deep · 91 km away
  28. 2.15 km SE of Pleasanton, California · 14842 days ago · 6 km deep · 26 km away
  29. 1.65 km SE of Pleasanton, California · 14842 days ago · 5 km deep · 26 km away
  30. 1.94 km SE of Pleasanton, California · 14842 days ago · 5 km deep · 25 km away
  31. 2.64 km SE of Pleasanton, California · 14841 days ago · 5 km deep · 25 km away
  32. 1.55 km ESE of Pleasanton, California · 14840 days ago · 4 km deep · 26 km away
  33. 2.55 km ENE of East Foothills, California · 14837 days ago · 3 km deep · 46 km away
  34. 2.58 km NE of Gilroy, California · 14836 days ago · 6 km deep · 92 km away
  35. 1.618 km NNE of Morgan Hill, California · 14834 days ago · 6 km deep · 69 km away
  36. 1.66 km NE of East Foothills, California · 14834 days ago · 8 km deep · 43 km away
  37. 2.91 km SSW of Blackhawk, California · 14834 days ago · 14 km deep · 20 km away
  38. 1.8Northern California · 14834 days ago · 12 km deep · 20 km away
  39. 1.91 km SSW of Blackhawk, California · 14834 days ago · 14 km deep · 20 km away
  40. 2.116 km NE of East Foothills, California · 14834 days ago · 6 km deep · 44 km away
  41. 1.615 km E of Seven Trees, California · 14833 days ago · 3 km deep · 61 km away
  42. 1.99 km ESE of East Foothills, California · 14833 days ago · 5 km deep · 52 km away
  43. 1.812 km SE of La Honda, California · 14832 days ago · 9 km deep · 52 km away
  44. 1.611 km SE of La Honda, California · 14832 days ago · 8 km deep · 51 km away
  45. 1.618 km ESE of East Foothills, California · 14830 days ago · 2 km deep · 61 km away
  46. 2.88 km ENE of San Martin, California · 14829 days ago · 7 km deep · 84 km away
  47. 2.87 km S of Sunol, California · 14829 days ago · 7 km deep · 28 km away
  48. 3.31 km SSW of Blackhawk, California · 14828 days ago · 15 km deep · 20 km away
  49. 2.67 km S of Sunol, California · 14828 days ago · 7 km deep · 27 km away
  50. 1.92 km SSW of Blackhawk, California · 14828 days ago · 13 km deep · 19 km away
  51. 1.66 km SSW of Sunol, California · 14827 days ago · 5 km deep · 25 km away
  52. 1.613 km E of Seven Trees, California · 14827 days ago · 5 km deep · 58 km away
  53. 2.012 km N of Livermore, California · 14827 days ago · 11 km deep · 32 km away
  54. 2.23 km ESE of Berkeley, California · 14827 days ago · 7 km deep · 20 km away
  55. 1.716 km N of Morgan Hill, California · 14826 days ago · 6 km deep · 63 km away
  56. 2.31 km SSW of Blackhawk, California · 14825 days ago · 13 km deep · 20 km away
  57. 1.913 km N of Morgan Hill, California · 14825 days ago · 5 km deep · 66 km away
  58. 1.62 km SSW of Blackhawk, California · 14825 days ago · 13 km deep · 19 km away
  59. 2.25 km W of Diablo Grande, California · 14825 days ago · -1 km deep · 75 km away
  60. 2.011 km NE of Morgan Hill, California · 14824 days ago · 5 km deep · 73 km away

The first 60 of 110.

Before

  1. 1.59 km ESE of East Foothills, California · 14850 days ago · 8 km deep · 52 km away
  2. 2.0Northern California · 14851 days ago · 6 km deep · 42 km away
  3. 1.610 km SE of Livermore, California · 14851 days ago · 8 km deep · 39 km away
  4. 2.32 km ENE of San Martin, California · 14853 days ago · 4 km deep · 83 km away
  5. 3.014 km N of Morgan Hill, California · 14854 days ago · 4 km deep · 65 km away
  6. 1.711 km NNE of East Foothills, California · 14856 days ago · 2 km deep · 41 km away
  7. 1.72 km NE of Alamo, California · 14857 days ago · 7 km deep · 19 km away
  8. 2.15 km S of Gilroy, California · 14857 days ago · 5 km deep · 96 km away
  9. 2.714 km N of Morgan Hill, California · 14857 days ago · 5 km deep · 64 km away
  10. 1.610 km NNE of Morgan Hill, California · 14858 days ago · 5 km deep · 71 km away
  11. 2.36 km NE of Aromas, California · 14858 days ago · 6 km deep · 99 km away
  12. 1.816 km NW of Davenport, California · 14858 days ago · 3 km deep · 70 km away
  13. 1.713 km N of Morgan Hill, California · 14859 days ago · 6 km deep · 66 km away
  14. 1.68 km NE of San Martin, California · 14859 days ago · 7 km deep · 82 km away
  15. 3.110 km SSE of Green Valley, California · 14859 days ago · 3 km deep · 50 km away
  16. 1.97 km E of Santa Rosa, California · 14859 days ago · 5 km deep · 93 km away
  17. 1.810 km NW of Moskowite Corner, California · 14859 days ago · 4 km deep · 90 km away
  18. 2.97 km E of Santa Rosa, California · 14859 days ago · 5 km deep · 92 km away
  19. 2.06 km NE of East Foothills, California · 14860 days ago · 6 km deep · 44 km away
  20. 1.64 km WSW of Cupertino, California · 14861 days ago · 5 km deep · 46 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc65439. Read Tue, Sep 22, 2026, 8:55 PM UTC.