California earthquakes

M1.6 earthquake 18 km ENE of Willows, California

A magnitude 1.6 earthquake struck 18 km ENE of Willows, California on Mon, Apr 28, 1986, 6:21 PM PDT (01:21 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M4.1 7 km W of Lodoga, California. This one was a foreshock.

Willows 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
1.6 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1986-04-29 01:21:54 UTC
Depth
3.6 km (2.3 mi), shallow
Epicenter
39.567° N, 121.991° 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 4.0 km horizontally, 8.2 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
283°, poorly surrounded by stations
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 41 in the 60 days after this one and 21 in the 30 days before it.

After

  1. 1.70 km SSE of Meadow Valley, California · 14766 days ago · 3 km deep · 89 km away
  2. 1.9Northern California · 14763 days ago · 5 km deep · 96 km away
  3. 1.713 km SE of Hidden Valley Lake, California · 14762 days ago · -1 km deep · 100 km away
  4. 2.56 km WNW of Palermo, California · 14762 days ago · 22 km deep · 35 km away
  5. 2.00 km W of Clear Lake Riviera, California · 14761 days ago · 0 km deep · 93 km away
  6. 2.32 km E of Storrie, California · 14759 days ago · 4 km deep · 71 km away
  7. 1.85 km W of Cherokee, California · 14759 days ago · 5 km deep · 34 km away
  8. 1.613 km WNW of Paynes Creek, California · 14758 days ago · 23 km deep · 89 km away
  9. 1.95 km W of Twain, California · 14758 days ago · 8 km deep · 88 km away
  10. 4.17 km W of Lodoga, California · 14757 days ago · 3 km deep · 58 km away
  11. 1.67 km S of Cottonwood, California · 14757 days ago · 5 km deep · 87 km away
  12. 2.61 km W of Berry Creek, California · 14757 days ago · 5 km deep · 49 km away
  13. 1.61 km NNE of Thermalito, California · 14756 days ago · 1 km deep · 36 km away
  14. 2.49 km SSE of Stirling City, California · 14755 days ago · 4 km deep · 54 km away
  15. 1.723 km ENE of Potter Valley, California · 14753 days ago · 9 km deep · 77 km away
  16. 2.02 km S of Clearlake, California · 14751 days ago · 5 km deep · 89 km away
  17. 1.65 km W of Willows, California · 14749 days ago · 5 km deep · 24 km away
  18. 2.512 km SE of Bucks Lake, California · 14749 days ago · 6 km deep · 81 km away
  19. 2.412 km ESE of Hidden Valley Lake, California · 14746 days ago · -1 km deep · 95 km away
  20. 2.83 km ESE of South Oroville, California · 14745 days ago · 0 km deep · 42 km away
  21. 1.818 km NNE of Upper Lake, California · 14738 days ago · 4 km deep · 76 km away
  22. 1.712 km WSW of Chester, California · 14738 days ago · 3 km deep · 96 km away
  23. 2.46 km E of Orland, California · 14737 days ago · 4 km deep · 23 km away
  24. 1.91 km NW of Clearlake, California · 14735 days ago · 40 km deep · 87 km away
  25. 1.813 km NE of Upper Lake, California · 14728 days ago · 10 km deep · 79 km away
  26. 1.913 km E of Cottonwood, California · 14728 days ago · 4 km deep · 90 km away
  27. 1.52 km E of Clear Lake Riviera, California · 14727 days ago · 3 km deep · 91 km away
  28. 1.714 km ESE of Mineral, California · 14725 days ago · 6 km deep · 92 km away
  29. 2.328 km NW of Paskenta, California · 14721 days ago · 18 km deep · 88 km away
  30. 1.719 km NE of Potter Valley, California · 14720 days ago · 4 km deep · 83 km away
  31. 2.03 km NNE of Palermo, California · 14718 days ago · 23 km deep · 42 km away
  32. 1.515 km SE of Mineral, California · 14718 days ago · 5 km deep · 91 km away
  33. 2.312 km SE of Bend, California · 14716 days ago · 22 km deep · 70 km away
  34. 1.88 km E of Lower Lake, California · 14714 days ago · 1 km deep · 85 km away
  35. 1.98 km E of Lower Lake, California · 14714 days ago · 2 km deep · 85 km away
  36. 1.98 km E of Lower Lake, California · 14714 days ago · 6 km deep · 85 km away
  37. 2.48 km E of Lower Lake, California · 14714 days ago · 5 km deep · 86 km away
  38. 2.914 km WSW of Guinda, California · 14712 days ago · 5 km deep · 94 km away
  39. 2.58 km NNE of Clipper Mills, California · 14711 days ago · 19 km deep · 76 km away
  40. 2.710 km SSE of Willows, California · 14709 days ago · 45 km deep · 20 km away
  41. 1.75 km WSW of Forbestown, California · 14707 days ago · 1 km deep · 58 km away

Before

  1. 2.02 km E of Tobin, California · 14767 days ago · 3 km deep · 73 km away
  2. 1.97 km ESE of Magalia, California · 14767 days ago · 11 km deep · 49 km away
  3. 1.738 km ESE of Ruth, California · 14768 days ago · 12 km deep · 99 km away
  4. 1.829 km NE of Potter Valley, California · 14768 days ago · 4 km deep · 78 km away
  5. 1.629 km NE of Potter Valley, California · 14768 days ago · 4 km deep · 78 km away
  6. 1.96 km ENE of Mineral, California · 14769 days ago · 8 km deep · 98 km away
  7. 1.629 km NE of Potter Valley, California · 14771 days ago · 4 km deep · 78 km away
  8. 2.122 km NW of Paskenta, California · 14776 days ago · 9 km deep · 82 km away
  9. 1.64 km ENE of Tobin, California · 14776 days ago · 4 km deep · 76 km away
  10. 2.013 km ESE of Mineral, California · 14777 days ago · 7 km deep · 91 km away
  11. 2.06 km W of Twain, California · 14778 days ago · 5 km deep · 88 km away
  12. 2.36 km ENE of Rancho Tehama Reserve, California · 14779 days ago · 4 km deep · 59 km away
  13. 1.73 km NNW of Clear Lake Riviera, California · 14782 days ago · -1 km deep · 91 km away
  14. 2.415 km W of Guinda, California · 14785 days ago · 13 km deep · 88 km away
  15. 2.17 km WNW of Cohasset, California · 14787 days ago · 4 km deep · 44 km away
  16. 1.610 km ESE of Cottonwood, California · 14792 days ago · 21 km deep · 88 km away
  17. 2.216 km N of Princeton, California · 14793 days ago · 5 km deep · 2 km away
  18. 2.4Northern California · 14794 days ago · 3 km deep · 71 km away
  19. 2.18 km NNE of Dobbins, California · 14795 days ago · 10 km deep · 73 km away
  20. 2.116 km N of Upper Lake, California · 14795 days ago · 7 km deep · 83 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc10085408. Read Sat, Oct 3, 2026, 1:05 AM UTC.