California earthquakes

M1.7 earthquake 15 km NE of Angwin, California

A magnitude 1.7 earthquake struck 15 km NE of Angwin, California on Tue, Jan 10, 1984, 9:17 PM PST (05:17 UTC), 20 km (13 mi) below the surface.

A larger quake followed: M3.1 8 km W 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
1.7 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1984-01-11 05:17:46 UTC
Depth
20.2 km (12.6 mi), shallow
Epicenter
38.685° N, 122.340° 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 2.0 km horizontally, 3.1 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
134°
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 167 in the 60 days after this one and 83 in the 30 days before it.

After

  1. 1.86 km ENE of Windsor, California · 15605 days ago · 1 km deep · 38 km away
  2. 2.16 km W of Cobb, California · 15605 days ago · 1 km deep · 42 km away
  3. 1.67 km WSW of Cobb, California · 15605 days ago · 1 km deep · 42 km away
  4. 1.818 km NNE of Upper Lake, California · 15605 days ago · 7 km deep · 82 km away
  5. 1.97 km S of Willows, California · 15605 days ago · 24 km deep · 87 km away
  6. 1.76 km W of Cobb, California · 15604 days ago · 3 km deep · 43 km away
  7. 2.36 km WSW of Cobb, California · 15604 days ago · 0 km deep · 42 km away
  8. 1.86 km WSW of Cobb, California · 15604 days ago · 3 km deep · 41 km away
  9. 1.96 km W of Cobb, California · 15604 days ago · 4 km deep · 42 km away
  10. 1.67 km ENE of Black Point-Green Point, California · 15603 days ago · 16 km deep · 60 km away
  11. 1.97 km WSW of Cobb, California · 15603 days ago · 1 km deep · 43 km away
  12. 2.57 km WSW of Cobb, California · 15603 days ago · 1 km deep · 43 km away
  13. 2.15 km SW of Cobb, California · 15603 days ago · 0 km deep · 38 km away
  14. 1.59 km WSW of Cobb, California · 15603 days ago · 1 km deep · 44 km away
  15. 1.84 km NE of Antioch, California · 15603 days ago · 24 km deep · 87 km away
  16. 1.97 km WSW of Cobb, California · 15602 days ago · 2 km deep · 43 km away
  17. 1.74 km NE of Pittsburg, California · 15602 days ago · 18 km deep · 82 km away
  18. 2.26 km W of Cobb, California · 15602 days ago · 0 km deep · 42 km away
  19. 1.6Northern California · 15602 days ago · 1 km deep · 39 km away
  20. 1.55 km WSW of Cobb, California · 15602 days ago · 0 km deep · 40 km away
  21. 1.77 km WSW of Cobb, California · 15601 days ago · 1 km deep · 43 km away
  22. 2.69 km WSW of Cobb, California · 15601 days ago · 2 km deep · 44 km away
  23. 1.75 km WSW of Cobb, California · 15601 days ago · 3 km deep · 40 km away
  24. 2.69 km WSW of Cobb, California · 15601 days ago · 2 km deep · 44 km away
  25. 1.621 km NE of Potter Valley, California · 15601 days ago · 5 km deep · 98 km away
  26. 2.614 km WNW of Rio Vista, California · 15600 days ago · 16 km deep · 68 km away
  27. 2.213 km WNW of Rio Vista, California · 15600 days ago · 14 km deep · 69 km away
  28. 1.57 km WSW of Cobb, California · 15599 days ago · 3 km deep · 42 km away
  29. 1.57 km WSW of Cobb, California · 15599 days ago · 3 km deep · 43 km away
  30. 2.010 km WNW of Rio Vista, California · 15599 days ago · 16 km deep · 71 km away
  31. 1.812 km ESE of Suisun, California · 15599 days ago · 2 km deep · 66 km away
  32. 1.68 km ENE of Hidden Valley Lake, California · 15598 days ago · 7 km deep · 19 km away
  33. 1.82 km SW of Clyde, California · 15598 days ago · 17 km deep · 79 km away
  34. 1.62 km E of Alamo, California · 15598 days ago · 7 km deep · 97 km away
  35. 1.76 km W of Cobb, California · 15598 days ago · 3 km deep · 43 km away
  36. 2.46 km W of Cobb, California · 15598 days ago · 3 km deep · 42 km away
  37. 1.914 km WNW of Rio Vista, California · 15597 days ago · 12 km deep · 68 km away
  38. 2.66 km W of Cobb, California · 15597 days ago · 2 km deep · 43 km away
  39. 1.77 km W of Cobb, California · 15597 days ago · 3 km deep · 43 km away
  40. 1.714 km S of Lodoga, California · 15597 days ago · 15 km deep · 55 km away
  41. 1.913 km ESE of Suisun, California · 15597 days ago · 4 km deep · 66 km away
  42. 1.64 km SSW of Cobb, California · 15597 days ago · -1 km deep · 36 km away
  43. 2.015 km ESE of Suisun, California · 15597 days ago · 10 km deep · 68 km away
  44. 2.36 km W of Cobb, California · 15597 days ago · 1 km deep · 42 km away
  45. 1.69 km SSE of Sea Ranch, California · 15596 days ago · 2 km deep · 93 km away
  46. 1.914 km NE of Upper Lake, California · 15596 days ago · 7 km deep · 77 km away
  47. 1.97 km WSW of Cobb, California · 15596 days ago · 2 km deep · 43 km away
  48. 2.07 km W of Cobb, California · 15596 days ago · 3 km deep · 43 km away
  49. 1.612 km NNW of Moskowite Corner, California · 15596 days ago · 2 km deep · 18 km away
  50. 1.68 km WSW of Cobb, California · 15595 days ago · 3 km deep · 43 km away
  51. 2.14 km NW of Kelseyville, California · 15595 days ago · 4 km deep · 59 km away
  52. 1.65 km WSW of Cobb, California · 15595 days ago · 1 km deep · 40 km away
  53. 2.26 km W of Cobb, California · 15594 days ago · 3 km deep · 43 km away
  54. 1.68 km WSW of Cobb, California · 15594 days ago · 3 km deep · 43 km away
  55. 2.46 km W of Cobb, California · 15594 days ago · 3 km deep · 42 km away
  56. 1.76 km W of Cobb, California · 15594 days ago · 3 km deep · 42 km away
  57. 1.70 km ESE of Crockett, California · 15593 days ago · 9 km deep · 71 km away
  58. 2.11 km NW of Rollingwood, California · 15593 days ago · 4 km deep · 79 km away
  59. 2.415 km W of Guinda, California · 15592 days ago · 8 km deep · 17 km away
  60. 2.0Northern California · 15592 days ago · 3 km deep · 42 km away

The first 60 of 167.

Before

  1. 1.65 km SSW of Calistoga, California · 15606 days ago · 6 km deep · 28 km away
  2. 2.6Northern California · 15607 days ago · -1 km deep · 44 km away
  3. 1.77 km W of Cobb, California · 15607 days ago · 3 km deep · 43 km away
  4. 1.78 km W of Cobb, California · 15607 days ago · 8 km deep · 44 km away
  5. 1.65 km NW of Napa, California · 15607 days ago · 11 km deep · 39 km away
  6. 2.26 km W of Cobb, California · 15608 days ago · 3 km deep · 42 km away
  7. 1.77 km WSW of Cobb, California · 15608 days ago · 1 km deep · 43 km away
  8. 1.63 km ESE of Larkfield-Wikiup, California · 15608 days ago · 8 km deep · 38 km away
  9. 2.017 km ENE of Potter Valley, California · 15608 days ago · 7 km deep · 92 km away
  10. 2.014 km NNW of Moskowite Corner, California · 15609 days ago · 2 km deep · 15 km away
  11. 1.86 km W of Cobb, California · 15610 days ago · 3 km deep · 42 km away
  12. 1.77 km WSW of Cobb, California · 15610 days ago · 0 km deep · 43 km away
  13. 2.17 km W of Cobb, California · 15611 days ago · 3 km deep · 43 km away
  14. 1.77 km W of Cobb, California · 15611 days ago · 3 km deep · 43 km away
  15. 3.07 km W of Cobb, California · 15611 days ago · 3 km deep · 43 km away
  16. 2.66 km SW of Cobb, CA · 15611 days ago · 1 km deep · 39 km away
  17. 1.71 km NNE of North Gate, California · 15611 days ago · 9 km deep · 90 km away
  18. 1.67 km W of Cobb, California · 15612 days ago · 3 km deep · 43 km away
  19. 2.56 km SW of Glen Ellen, California · 15612 days ago · 7 km deep · 45 km away
  20. 1.67 km WSW of Cobb, California · 15612 days ago · 2 km deep · 43 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1109776. Read Fri, Oct 2, 2026, 9:18 PM UTC.