California earthquakes

M2.0 earthquake 17 km NE of Angwin, California

A magnitude 2.0 earthquake struck 17 km NE of Angwin, California on Fri, Oct 31, 1980, 1:02 PM PST (21:02 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.9 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
2.0 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1980-10-31 21:02:47 UTC
Depth
7.5 km (4.7 mi), shallow
Epicenter
38.698° N, 122.330° 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, 1.1 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
172°
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: 158 in the 60 days after this one and 45 in the 30 days before it.

After

  1. 1.67 km WSW of Cobb, California · 16770 days ago · 1 km deep · 43 km away
  2. 1.77 km WSW of Cobb, California · 16769 days ago · 1 km deep · 43 km away
  3. 3.47 km WSW of Cobb, California · 16769 days ago · 0 km deep · 43 km away
  4. 1.67 km WSW of Cobb, California · 16769 days ago · 0 km deep · 43 km away
  5. 1.87 km WSW of Cobb, California · 16769 days ago · 0 km deep · 43 km away
  6. 3.03 km N of Piedmont, California · 16769 days ago · 6 km deep · 95 km away
  7. 1.58 km ENE of Larkfield-Wikiup, California · 16769 days ago · 3 km deep · 34 km away
  8. 1.78 km WSW of Cobb, California · 16768 days ago · 1 km deep · 44 km away
  9. 1.77 km W of Cobb, California · 16767 days ago · 1 km deep · 44 km away
  10. 1.59 km WSW of Cobb, California · 16766 days ago · 2 km deep · 45 km away
  11. 1.55 km W of Cobb, California · 16765 days ago · 0 km deep · 42 km away
  12. 2.04 km NE of Upper Lake, California · 16765 days ago · 5 km deep · 72 km away
  13. 2.319 km ENE of Potter Valley, California · 16764 days ago · 13 km deep · 93 km away
  14. 3.37 km WSW of Cobb, California · 16764 days ago · 2 km deep · 43 km away
  15. 1.77 km WSW of Calistoga, California · 16763 days ago · 4 km deep · 33 km away
  16. 2.013 km E of Angwin, California · 16763 days ago · 1 km deep · 12 km away
  17. 1.84 km WSW of Cobb, California · 16762 days ago · 4 km deep · 41 km away
  18. 1.72 km SSW of Clearlake, California · 16762 days ago · 2 km deep · 38 km away
  19. 1.93 km S of Point Reyes Station, California · 16761 days ago · 12 km deep · 84 km away
  20. 1.72 km NNE of Clear Lake Riviera, California · 16761 days ago · 0 km deep · 45 km away
  21. 2.117 km NNE of Upper Lake, California · 16761 days ago · 2 km deep · 80 km away
  22. 1.62 km ESE of Clear Lake Riviera, California · 16760 days ago · -1 km deep · 42 km away
  23. 2.4Northern California · 16759 days ago · 15 km deep · 78 km away
  24. 1.67 km WSW of Cobb, California · 16759 days ago · 2 km deep · 43 km away
  25. 2.5Northern California · 16759 days ago · 1 km deep · 44 km away
  26. 1.72 km ENE of Bay Point, California · 16757 days ago · 16 km deep · 81 km away
  27. 1.67 km WSW of Cobb, California · 16757 days ago · 1 km deep · 43 km away
  28. 1.52 km ENE of Bay Point, California · 16757 days ago · 17 km deep · 81 km away
  29. 1.65 km W of Kenwood, California · 16754 days ago · 8 km deep · 40 km away
  30. 2.316 km NNW of Moskowite Corner, California · 16754 days ago · 5 km deep · 14 km away
  31. 2.16 km W of Cobb, California · 16754 days ago · 2 km deep · 43 km away
  32. 2.76 km W of Cobb, California · 16753 days ago · 3 km deep · 43 km away
  33. 1.53 km SSW of Clearlake Oaks, California · 16753 days ago · 4 km deep · 45 km away
  34. 1.68 km WSW of Cobb, California · 16752 days ago · 1 km deep · 44 km away
  35. 1.920 km NE of Potter Valley, California · 16752 days ago · 13 km deep · 100 km away
  36. 1.67 km SSE of Cloverdale, California · 16752 days ago · -1 km deep · 57 km away
  37. 1.77 km WSW of Cobb, California · 16751 days ago · 1 km deep · 43 km away
  38. 1.99 km W of Cobb, California · 16751 days ago · 0 km deep · 46 km away
  39. 2.19 km W of Cobb, California · 16751 days ago · 0 km deep · 46 km away
  40. 2.21 km WNW of Concord, California · 16749 days ago · 14 km deep · 83 km away
  41. 1.525 km ENE of Potter Valley, California · 16748 days ago · 14 km deep · 93 km away
  42. 1.91 km WNW of Concord, California · 16748 days ago · 14 km deep · 83 km away
  43. 3.52 km NNW of Kelseyville, California · 16747 days ago · 0 km deep · 56 km away
  44. 3.64 km WSW of Maxwell, California · 16747 days ago · 18 km deep · 63 km away
  45. 1.69 km WSW of Cobb, California · 16747 days ago · 2 km deep · 45 km away
  46. 3.34 km SW of Maxwell, California · 16746 days ago · 20 km deep · 61 km away
  47. 1.56 km W of Lower Lake, California · 16745 days ago · 5 km deep · 38 km away
  48. 1.67 km E of Larkfield-Wikiup, California · 16745 days ago · 4 km deep · 35 km away
  49. 3.04 km WSW of Maxwell, California · 16744 days ago · 19 km deep · 63 km away
  50. 1.73 km NE of Santa Rosa, California · 16744 days ago · 8 km deep · 41 km away
  51. 1.618 km WSW of Stonyford, California · 16744 days ago · 12 km deep · 76 km away
  52. 1.723 km ENE of Potter Valley, California · 16744 days ago · 15 km deep · 93 km away
  53. 2.29 km W of Cobb, California · 16744 days ago · 1 km deep · 45 km away
  54. 3.03 km W of Maxwell, California · 16743 days ago · 19 km deep · 65 km away
  55. 1.66 km WSW of Cobb, California · 16743 days ago · 1 km deep · 42 km away
  56. 1.824 km ENE of Potter Valley, California · 16743 days ago · 16 km deep · 93 km away
  57. 2.34 km WSW of Healdsburg, California · 16743 days ago · 4 km deep · 53 km away
  58. 1.69 km S of Antioch, California · 16743 days ago · 8 km deep · 98 km away
  59. 1.65 km WSW of Healdsburg, California · 16743 days ago · 3 km deep · 53 km away
  60. 1.65 km S of Cobb, California · 16742 days ago · 2 km deep · 36 km away

The first 60 of 158.

Before

  1. 2.017 km NE of Angwin, California · 16771 days ago · 15 km deep · 3 km away
  2. 1.80 km NNE of Bolinas, California · 16772 days ago · 13 km deep · 92 km away
  3. 1.65 km SW of Cobb, California · 16772 days ago · 0 km deep · 39 km away
  4. 1.59 km ESE of Hidden Valley Lake, California · 16772 days ago · 4 km deep · 14 km away
  5. 1.99 km WSW of Cobb, California · 16772 days ago · 2 km deep · 45 km away
  6. 2.69 km WSW of Cobb, California · 16772 days ago · 2 km deep · 44 km away
  7. 2.07 km WSW of Cobb, California · 16774 days ago · 1 km deep · 43 km away
  8. 1.83 km ESE of Berkeley, California · 16774 days ago · 10 km deep · 93 km away
  9. 1.88 km WSW of Cobb, California · 16774 days ago · -1 km deep · 43 km away
  10. 2.65 km SW of Cobb, California · 16777 days ago · 0 km deep · 40 km away
  11. 1.67 km SSW of Calistoga, California · 16778 days ago · 6 km deep · 31 km away
  12. 1.67 km WSW of Cobb, California · 16779 days ago · 2 km deep · 43 km away
  13. 1.74 km ENE of Santa Rosa, California · 16779 days ago · 0 km deep · 40 km away
  14. 2.55 km NNE of Clearlake, California · 16780 days ago · 0 km deep · 41 km away
  15. 1.66 km W of Cobb, California · 16780 days ago · 1 km deep · 43 km away
  16. 2.014 km NNE of Angwin, California · 16781 days ago · 12 km deep · 5 km away
  17. 1.61 km ESE of Clear Lake Riviera, California · 16782 days ago · 0 km deep · 42 km away
  18. 1.69 km WSW of Cobb, California · 16784 days ago · 2 km deep · 45 km away
  19. 1.52 km ESE of Santa Rosa, California · 16787 days ago · 6 km deep · 43 km away
  20. 3.28 km N of Princeton, California · 16788 days ago · 23 km deep · 92 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1056659. Read Thu, Oct 1, 2026, 11:45 PM UTC.