California earthquakes

M1.6 earthquake 2 km SSW of Angwin, California

A magnitude 1.6 earthquake struck 2 km SSW of Angwin, California on Wed, Nov 5, 1986, 8:23 PM PST (04:23 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M3.7 5 km SW of Cobb, California. This one was a foreshock.

Angwin 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), micro
Local time
UTC
1986-11-06 04:23:00 UTC
Depth
12.6 km (7.8 mi), shallow
Epicenter
38.556° N, 122.456° 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 0.3 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
116°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 174 in the 60 days after this one and 75 in the 30 days before it.

After

  1. 1.74 km SSW of Calistoga, California · 14571 days ago · 4 km deep · 13 km away
  2. 1.68 km SW of Hopland, California · 14571 days ago · 4 km deep · 74 km away
  3. 1.96 km WNW of Montalvin, California · 14571 days ago · 31 km deep · 60 km away
  4. 2.17 km W of Cobb, California · 14571 days ago · 3 km deep · 42 km away
  5. 2.310 km N of Cloverdale, California · 14570 days ago · 22 km deep · 61 km away
  6. 2.19 km W of Cobb, California · 14569 days ago · -1 km deep · 43 km away
  7. 1.66 km W of Cobb, California · 14569 days ago · 2 km deep · 42 km away
  8. 1.92 km E of North Gate, California · 14569 days ago · 9 km deep · 84 km away
  9. 1.82 km ESE of Danville, California · 14569 days ago · 8 km deep · 93 km away
  10. 1.79 km WNW of Cazadero, California · 14568 days ago · 4 km deep · 64 km away
  11. 2.67 km W of Cobb, California · 14568 days ago · 3 km deep · 42 km away
  12. 1.94 km W of Cobb, California · 14568 days ago · 0 km deep · 40 km away
  13. 2.811 km S of Kelseyville, California · 14568 days ago · 2 km deep · 50 km away
  14. 2.46 km WSW of Cobb, California · 14568 days ago · 1 km deep · 41 km away
  15. 2.218 km W of Cloverdale, California · 14568 days ago · 5 km deep · 71 km away
  16. 1.75 km SW of Cobb, California · 14567 days ago · 0 km deep · 38 km away
  17. 2.85 km SW of Cobb, California · 14567 days ago · 0 km deep · 38 km away
  18. 3.75 km SW of Cobb, California · 14567 days ago · 0 km deep · 38 km away
  19. 1.85 km WSW of Cobb, California · 14567 days ago · 0 km deep · 39 km away
  20. 1.65 km WSW of Cobb, California · 14567 days ago · 1 km deep · 39 km away
  21. 1.610 km W of Ukiah, California · 14566 days ago · 4 km deep · 99 km away
  22. 1.54 km WNW of Cobb, California · 14566 days ago · 2 km deep · 42 km away
  23. 1.810 km S of Muir Beach, California · 14566 days ago · 11 km deep · 88 km away
  24. 1.75 km WSW of Cobb, California · 14566 days ago · 2 km deep · 40 km away
  25. 1.95 km WSW of Cobb, California · 14566 days ago · 4 km deep · 40 km away
  26. 1.66 km W of Cobb, California · 14566 days ago · 1 km deep · 42 km away
  27. 2.16 km W of Cobb, California · 14566 days ago · 2 km deep · 41 km away
  28. 2.06 km W of Cobb, California · 14565 days ago · 3 km deep · 42 km away
  29. 1.8Northern California · 14564 days ago · 0 km deep · 87 km away
  30. 2.53 km NNE of Guerneville, California · 14563 days ago · 0 km deep · 45 km away
  31. 3.010 km W of Cobb, California · 14563 days ago · 0 km deep · 43 km away
  32. 2.87 km W of Cobb, California · 14563 days ago · 1 km deep · 43 km away
  33. 1.52 km NE of Hidden Valley Lake, California · 14562 days ago · 4 km deep · 30 km away
  34. 2.57 km W of Cobb, California · 14562 days ago · -1 km deep · 42 km away
  35. 2.16 km SSW of Clear Lake Riviera, California · 14561 days ago · 1 km deep · 46 km away
  36. 1.99 km ESE of Hidden Valley Lake, California · 14560 days ago · 6 km deep · 24 km away
  37. 2.22 km NE of Green Valley, California · 14559 days ago · 12 km deep · 42 km away
  38. 3.06 km W of Cobb, California · 14559 days ago · 4 km deep · 41 km away
  39. 2.11 km SSW of Hopland, California · 14558 days ago · 6 km deep · 73 km away
  40. 2.04 km WNW of Cobb, California · 14558 days ago · 2 km deep · 42 km away
  41. 1.79 km WSW of Cobb, California · 14558 days ago · 0 km deep · 43 km away
  42. 1.85 km E of Hidden Valley Lake, California · 14557 days ago · 11 km deep · 28 km away
  43. 2.311 km ESE of Hidden Valley Lake, California · 14557 days ago · 11 km deep · 26 km away
  44. 2.08 km WSW of Cobb, California · 14557 days ago · 3 km deep · 42 km away
  45. 2.312 km WNW of Calistoga, California · 14556 days ago · 6 km deep · 23 km away
  46. 1.99 km WSW of Cobb, California · 14556 days ago · 3 km deep · 42 km away
  47. 2.712 km E of Hidden Valley Lake, California · 14556 days ago · 13 km deep · 26 km away
  48. 1.911 km ESE of Hidden Valley Lake, California · 14556 days ago · 6 km deep · 23 km away
  49. 1.922 km NNE of Upper Lake, California · 14555 days ago · 0 km deep · 95 km away
  50. 2.17 km WSW of Cobb, California · 14554 days ago · 0 km deep · 41 km away
  51. 2.46 km W of Cobb, California · 14554 days ago · 2 km deep · 42 km away
  52. 2.67 km WSW of Cobb, California · 14554 days ago · 0 km deep · 41 km away
  53. 2.38 km W of Cobb, California · 14553 days ago · 4 km deep · 42 km away
  54. 1.811 km E of Hidden Valley Lake, California · 14553 days ago · 11 km deep · 26 km away
  55. 2.39 km W of Cobb, California · 14553 days ago · 0 km deep · 43 km away
  56. 2.05 km W of Cobb, California · 14553 days ago · 1 km deep · 42 km away
  57. 1.510 km ESE of Hidden Valley Lake, California · 14552 days ago · 7 km deep · 23 km away
  58. 1.910 km NW of Broadmoor, California · 14552 days ago · 9 km deep · 90 km away
  59. 1.85 km SW of Cobb, California · 14551 days ago · 2 km deep · 37 km away
  60. 1.97 km WSW of Cobb, California · 14551 days ago · 4 km deep · 40 km away

The first 60 of 174.

Before

  1. 2.610 km NW of Cazadero, California · 14572 days ago · 18 km deep · 63 km away
  2. 2.110 km E of Hidden Valley Lake, California · 14572 days ago · 2 km deep · 27 km away
  3. 2.06 km NW of Green Valley, California · 14572 days ago · 8 km deep · 36 km away
  4. 1.79 km W of Cobb, California · 14572 days ago · 1 km deep · 44 km away
  5. 1.75 km WSW of Cobb, California · 14572 days ago · 0 km deep · 39 km away
  6. 1.97 km WSW of Cobb, California · 14573 days ago · 1 km deep · 41 km away
  7. 2.16 km WSW of Cobb, California · 14573 days ago · 4 km deep · 40 km away
  8. 2.04 km SE of Rodeo, California · 14573 days ago · 8 km deep · 64 km away
  9. 1.68 km W of Cobb, California · 14573 days ago · 1 km deep · 44 km away
  10. 1.64 km WSW of Clear Lake Riviera, California · 14573 days ago · 0 km deep · 50 km away
  11. 2.06 km NW of Cobb, California · 14575 days ago · -1 km deep · 44 km away
  12. 1.74 km WSW of Cobb, California · 14575 days ago · 0 km deep · 39 km away
  13. 2.44 km SE of Rodeo, California · 14576 days ago · 8 km deep · 64 km away
  14. 1.64 km WSW of Cobb, California · 14576 days ago · 2 km deep · 40 km away
  15. 3.02 km SW of Cobb, California · 14576 days ago · 2 km deep · 37 km away
  16. 1.71 km SSW of Alamo, California · 14576 days ago · 9 km deep · 88 km away
  17. 1.54 km WNW of Cobb, California · 14577 days ago · -1 km deep · 42 km away
  18. 1.67 km W of Cobb, California · 14577 days ago · 6 km deep · 42 km away
  19. 1.62 km WNW of Sea Ranch, California · 14578 days ago · 3 km deep · 91 km away
  20. 2.27 km WSW of Cobb, California · 14579 days ago · 0 km deep · 41 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc10087010. Read Mon, Sep 28, 2026, 2:52 PM UTC.