California earthquakes

M1.8 earthquake 11 km NNE of Angwin, California

A magnitude 1.8 earthquake struck 11 km NNE of Angwin, California on Mon, Dec 15, 1980, 11:34 PM PST (07:34 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M2.1 3 km ESE of Clear Lake Riviera, 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
1.8 (md), micro
Local time
UTC
1980-12-16 07:34:54 UTC
Depth
1.3 km (0.8 mi), shallow
Epicenter
38.665° N, 122.388° 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 0.4 km horizontally, 8.7 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
152°
Stations used
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 115 in the 60 days after this one and 65 in the 30 days before it.

After

  1. 1.53 km SSE of Geyserville, California · 16716 days ago · 5 km deep · 44 km away
  2. 1.81 km WSW of Emeryville, California · 16716 days ago · 8 km deep · 93 km away
  3. 2.13 km ESE of Clear Lake Riviera, California · 16716 days ago · 2 km deep · 40 km away
  4. 2.19 km NNE of Cloverdale, California · 16716 days ago · 4 km deep · 58 km away
  5. 1.86 km WSW of Cobb, California · 16715 days ago · 4 km deep · 39 km away
  6. 1.87 km WSW of Cobb, California · 16715 days ago · 1 km deep · 38 km away
  7. 2.98 km NE of Napa, California · 16714 days ago · 4 km deep · 37 km away
  8. 2.39 km WSW of Cobb, California · 16714 days ago · 1 km deep · 41 km away
  9. 1.97 km WSW of Cobb, California · 16712 days ago · 0 km deep · 40 km away
  10. 2.6near the coast of Northern California · 16711 days ago · 4 km deep · 66 km away
  11. 2.14 km WSW of Dunnigan, California · 16711 days ago · 0 km deep · 39 km away
  12. 1.62 km W of Clear Lake Riviera, California · 16711 days ago · 3 km deep · 45 km away
  13. 1.617 km WSW of Lodoga, California · 16711 days ago · 15 km deep · 70 km away
  14. 1.6Northern California · 16711 days ago · 3 km deep · 39 km away
  15. 1.63 km W of Redwood Valley, California · 16710 days ago · 6 km deep · 99 km away
  16. 1.918 km ENE of Potter Valley, California · 16710 days ago · 7 km deep · 92 km away
  17. 2.23 km SE of Clear Lake Riviera, California · 16709 days ago · 1 km deep · 39 km away
  18. 1.74 km SE of Clear Lake Riviera, California · 16709 days ago · 1 km deep · 39 km away
  19. 1.63 km SE of Clear Lake Riviera, California · 16709 days ago · 0 km deep · 40 km away
  20. 3.09 km WSW of Cobb, California · 16708 days ago · 2 km deep · 41 km away
  21. 1.99 km WSW of Cobb, California · 16708 days ago · 1 km deep · 41 km away
  22. 1.69 km WSW of Cobb, California · 16708 days ago · 1 km deep · 41 km away
  23. 1.59 km NW of Cobb, California · 16707 days ago · 0 km deep · 44 km away
  24. 1.713 km E of Potter Valley, California · 16707 days ago · 12 km deep · 88 km away
  25. 1.96 km WSW of Cobb, California · 16707 days ago · 1 km deep · 39 km away
  26. 2.24 km ESE of Sheridan, California · 16707 days ago · 31 km deep · 98 km away
  27. 1.69 km NNE of Hopland, California · 16706 days ago · 5 km deep · 72 km away
  28. 2.00 km ESE of Concord, California · 16705 days ago · 14 km deep · 83 km away
  29. 2.12 km NNE of Clear Lake Riviera, California · 16704 days ago · 1 km deep · 44 km away
  30. 2.20 km ESE of Concord, California · 16704 days ago · 15 km deep · 83 km away
  31. 2.37 km WSW of Cobb, California · 16704 days ago · 1 km deep · 39 km away
  32. 1.77 km WSW of Cobb, California · 16701 days ago · 1 km deep · 39 km away
  33. 2.81 km WSW of Geyserville, California · 16700 days ago · 5 km deep · 47 km away
  34. 1.66 km W of Cobb, California · 16699 days ago · 3 km deep · 39 km away
  35. 1.61 km SE of Redwood Valley, California · 16698 days ago · 4 km deep · 96 km away
  36. 1.821 km W of Bolinas, California · 16698 days ago · 4 km deep · 98 km away
  37. 2.16 km WSW of Cobb, California · 16698 days ago · 1 km deep · 38 km away
  38. 2.91 km N of Pleasant Hill, California · 16697 days ago · 10 km deep · 83 km away
  39. 1.93 km NE of Penngrove, California · 16696 days ago · 5 km deep · 44 km away
  40. 1.78 km N of Geyserville, California · 16696 days ago · 5 km deep · 48 km away
  41. 2.13 km NE of Penngrove, California · 16696 days ago · 5 km deep · 44 km away
  42. 2.23 km NE of Penngrove, California · 16696 days ago · 5 km deep · 44 km away
  43. 1.73 km NE of Penngrove, California · 16696 days ago · 4 km deep · 44 km away
  44. 2.14 km SSE of Pittsburg, California · 16695 days ago · 14 km deep · 88 km away
  45. 2.17 km W of Cobb, California · 16694 days ago · 1 km deep · 41 km away
  46. 1.64 km WSW of Cobb, California · 16694 days ago · 1 km deep · 36 km away
  47. 2.67 km WSW of Cobb, California · 16693 days ago · 0 km deep · 39 km away
  48. 1.611 km W of Cobb, California · 16693 days ago · 2 km deep · 45 km away
  49. 1.57 km WSW of Cobb, California · 16692 days ago · 3 km deep · 40 km away
  50. 1.812 km E of Lower Lake, California · 16692 days ago · 4 km deep · 28 km away
  51. 1.86 km W of Cobb, California · 16691 days ago · 0 km deep · 39 km away
  52. 2.36 km W of Cobb, California · 16691 days ago · 4 km deep · 39 km away
  53. 1.83 km SE of Clear Lake Riviera, California · 16691 days ago · 6 km deep · 40 km away
  54. 1.96 km WSW of Cobb, California · 16691 days ago · 1 km deep · 39 km away
  55. 1.94 km SE of Clear Lake Riviera, California · 16690 days ago · 5 km deep · 39 km away
  56. 2.54 km ENE of Penngrove, California · 16690 days ago · 0 km deep · 44 km away
  57. 1.62 km SSW of Moskowite Corner, California · 16689 days ago · 11 km deep · 31 km away
  58. 2.28 km ESE of Hidden Valley Lake, California · 16689 days ago · 8 km deep · 15 km away
  59. 1.56 km WSW of Cobb, California · 16689 days ago · 1 km deep · 38 km away
  60. 2.57 km WSW of Cobb, California · 16688 days ago · 1 km deep · 39 km away

The first 60 of 115.

Before

  1. 2.19 km WSW of Cobb, California · 16717 days ago · 1 km deep · 42 km away
  2. 3.13 km W of Maxwell, California · 16717 days ago · 19 km deep · 69 km away
  3. 1.95 km WSW of Cobb, California · 16718 days ago · 0 km deep · 37 km away
  4. 3.15 km WSW of Cobb, California · 16718 days ago · 1 km deep · 37 km away
  5. 1.69 km W of Cobb, California · 16718 days ago · 1 km deep · 42 km away
  6. 1.69 km W of Cobb, California · 16718 days ago · 1 km deep · 42 km away
  7. 3.54 km WSW of Maxwell, California · 16718 days ago · 20 km deep · 67 km away
  8. 1.62 km ESE of Clear Lake Riviera, California · 16719 days ago · -1 km deep · 41 km away
  9. 1.64 km ESE of Clear Lake Riviera, California · 16719 days ago · 3 km deep · 39 km away
  10. 1.73 km ESE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 40 km away
  11. 2.02 km NW of Concord, California · 16720 days ago · 16 km deep · 81 km away
  12. 2.52 km ENE of Clear Lake Riviera, California · 16720 days ago · 1 km deep · 42 km away
  13. 1.92 km NE of Clear Lake Riviera, California · 16720 days ago · 1 km deep · 43 km away
  14. 1.72 km SE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 40 km away
  15. 2.58 km SSW of Moskowite Corner, California · 16720 days ago · 0 km deep · 35 km away
  16. 1.98 km NE of Napa, California · 16720 days ago · 7 km deep · 39 km away
  17. 1.71 km ENE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 43 km away
  18. 1.93 km SE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 40 km away
  19. 1.82 km ENE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 43 km away
  20. 3.22 km E of Clear Lake Riviera, California · 16720 days ago · 1 km deep · 41 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1058156. Read Tue, Sep 22, 2026, 10:27 PM UTC.