California earthquakes

M2.0 earthquake 4 km NE of Princeton, California

A magnitude 2.0 earthquake struck 4 km NE of Princeton, California on Tue, Sep 22, 1981, 6:58 PM PDT (01:58 UTC), 24 km (15 mi) below the surface.

A larger quake followed: M3.1 Northern California. This one was a foreshock.

Biggs 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
1981-09-23 01:58:03 UTC
Depth
23.9 km (14.9 mi), shallow
Epicenter
39.430° N, 121.964° 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 1.2 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
234°, poorly surrounded by stations
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 69 in the 60 days after this one and 23 in the 30 days before it.

After

  1. 2.07 km W of Cobb, California · 16444 days ago · 2 km deep · 99 km away
  2. 1.77 km W of Cobb, California · 16443 days ago · 2 km deep · 100 km away
  3. 1.810 km E of Hidden Valley Lake, California · 16443 days ago · 7 km deep · 81 km away
  4. 1.65 km SW of Cobb, California · 16442 days ago · 0 km deep · 100 km away
  5. 2.14 km WSW of Cobb, California · 16441 days ago · 1 km deep · 99 km away
  6. 1.54 km WSW of Cobb, California · 16441 days ago · 1 km deep · 99 km away
  7. 2.121 km ENE of Potter Valley, California · 16441 days ago · 0 km deep · 80 km away
  8. 1.720 km NNE of Upper Lake, California · 16439 days ago · 7 km deep · 75 km away
  9. 1.66 km WSW of Cobb, California · 16439 days ago · 2 km deep · 100 km away
  10. 1.77 km W of Cobb, California · 16437 days ago · 0 km deep · 99 km away
  11. 2.029 km WSW of Paskenta, California · 16436 days ago · 2 km deep · 84 km away
  12. 1.66 km WSW of Cobb, California · 16433 days ago · 0 km deep · 100 km away
  13. 2.35 km WSW of Cobb, California · 16433 days ago · 1 km deep · 99 km away
  14. 2.17 km W of Cobb, California · 16431 days ago · 0 km deep · 98 km away
  15. 2.06 km W of Cobb, California · 16430 days ago · 4 km deep · 99 km away
  16. 1.65 km SW of Cobb, California · 16430 days ago · 0 km deep · 100 km away
  17. 1.66 km W of Cobb, California · 16430 days ago · 2 km deep · 99 km away
  18. 1.65 km WSW of Cobb, California · 16429 days ago · 0 km deep · 100 km away
  19. 1.53 km E of Palermo, California · 16429 days ago · 5 km deep · 40 km away
  20. 1.66 km W of Cobb, California · 16428 days ago · 1 km deep · 99 km away
  21. 1.85 km W of Cobb, California · 16428 days ago · 0 km deep · 98 km away
  22. 3.15 km W of Cobb, California · 16428 days ago · 1 km deep · 98 km away
  23. 2.46 km W of Cobb, California · 16428 days ago · 1 km deep · 98 km away
  24. 3.111 km NE of Hidden Valley Lake, California · 16428 days ago · 11 km deep · 75 km away
  25. 2.09 km ENE of Hidden Valley Lake, California · 16428 days ago · 8 km deep · 78 km away
  26. 1.65 km WSW of Cobb, California · 16427 days ago · 0 km deep · 99 km away
  27. 1.89 km ENE of Hidden Valley Lake, California · 16427 days ago · 7 km deep · 78 km away
  28. 3.1Northern California · 16426 days ago · 1 km deep · 99 km away
  29. 1.618 km NE of Upper Lake, California · 16426 days ago · 5 km deep · 72 km away
  30. 1.717 km N of Moskowite Corner, California · 16425 days ago · 8 km deep · 95 km away
  31. 2.014 km N of Moskowite Corner, California · 16425 days ago · 0 km deep · 97 km away
  32. 2.214 km S of Hamilton City, California · 16425 days ago · 23 km deep · 20 km away
  33. 2.26 km WSW of Paradise, California · 16425 days ago · 16 km deep · 41 km away
  34. 1.94 km WSW of Cobb, California · 16425 days ago · 1 km deep · 99 km away
  35. 1.55 km SSW of Cobb, California · 16422 days ago · -1 km deep · 99 km away
  36. 2.35 km SW of Cobb, California · 16419 days ago · 0 km deep · 100 km away
  37. 3.110 km N of Chico, California · 16412 days ago · 22 km deep · 45 km away
  38. 2.129 km WSW of Paskenta, California · 16411 days ago · 11 km deep · 88 km away
  39. 1.65 km SSW of Cobb, California · 16409 days ago · 0 km deep · 99 km away
  40. 1.66 km W of Cobb, California · 16409 days ago · 4 km deep · 99 km away
  41. 1.818 km N of Moskowite Corner, California · 16409 days ago · 8 km deep · 94 km away
  42. 1.56 km WNW of Cobb, California · 16408 days ago · 1 km deep · 98 km away
  43. 2.417 km N of Moskowite Corner, California · 16408 days ago · 9 km deep · 94 km away
  44. 2.518 km N of Moskowite Corner, California · 16408 days ago · 8 km deep · 94 km away
  45. 2.07 km W of Cobb, California · 16408 days ago · 1 km deep · 99 km away
  46. 3.17 km W of Cobb, California · 16408 days ago · 1 km deep · 99 km away
  47. 2.26 km W of Cobb, California · 16408 days ago · 0 km deep · 98 km away
  48. 2.65 km SW of Cobb, California · 16408 days ago · 0 km deep · 100 km away
  49. 2.66 km N of Robbins, California · 16407 days ago · 21 km deep · 60 km away
  50. 1.64 km SSE of Clear Lake Riviera, California · 16403 days ago · 3 km deep · 85 km away
  51. 2.79 km NE of Gerber, California · 16401 days ago · 24 km deep · 76 km away
  52. 2.523 km W of Elk Creek, California · 16400 days ago · 6 km deep · 76 km away
  53. 2.26 km W of Cobb, California · 16398 days ago · 3 km deep · 99 km away
  54. 1.81 km SSW of Hamilton City, California · 16397 days ago · 6 km deep · 34 km away
  55. 1.715 km WSW of Paskenta, California · 16396 days ago · 4 km deep · 80 km away
  56. 1.5Northern California · 16396 days ago · 19 km deep · 28 km away
  57. 1.78 km S of Hamilton City, California · 16396 days ago · 17 km deep · 27 km away
  58. 1.85 km SW of Cobb, California · 16396 days ago · 0 km deep · 100 km away
  59. 1.8Northern California · 16392 days ago · 0 km deep · 100 km away
  60. 2.85 km SW of Cobb, California · 16391 days ago · 0 km deep · 100 km away

The first 60 of 69.

Before

  1. 2.16 km W of Cobb, California · 16445 days ago · 4 km deep · 99 km away
  2. 2.10 km E of Kelseyville, California · 16446 days ago · 0 km deep · 90 km away
  3. 2.03 km WNW of Lower Lake, California · 16449 days ago · 1 km deep · 82 km away
  4. 1.64 km WSW of Cobb, California · 16451 days ago · 1 km deep · 99 km away
  5. 1.64 km WSW of Cobb, California · 16452 days ago · 2 km deep · 99 km away
  6. 1.611 km S of Kelseyville, California · 16452 days ago · -1 km deep · 97 km away
  7. 2.66 km NW of Paskenta, California · 16452 days ago · -1 km deep · 77 km away
  8. 1.84 km S of Cobb, California · 16453 days ago · 2 km deep · 98 km away
  9. 1.75 km W of Cobb, California · 16455 days ago · 4 km deep · 97 km away
  10. 2.16 km W of Cobb, California · 16456 days ago · 4 km deep · 99 km away
  11. 1.66 km WSW of Cobb, California · 16458 days ago · 0 km deep · 100 km away
  12. 2.06 km WSW of Cobb, California · 16460 days ago · 1 km deep · 100 km away
  13. 2.14 km SE of Palermo, California · 16460 days ago · 6 km deep · 40 km away
  14. 1.65 km SSW of Clear Lake Riviera, California · 16461 days ago · 1 km deep · 89 km away
  15. 1.76 km SSW of Hamilton City, California · 16461 days ago · 19 km deep · 30 km away
  16. 1.75 km SW of Cobb, California · 16463 days ago · 1 km deep · 100 km away
  17. 1.726 km NNE of Potter Valley, California · 16466 days ago · 10 km deep · 87 km away
  18. 1.825 km NNE of Potter Valley, California · 16466 days ago · 9 km deep · 87 km away
  19. 1.57 km SW of Clear Lake Riviera, California · 16467 days ago · 2 km deep · 91 km away
  20. 1.719 km ENE of Potter Valley, California · 16468 days ago · 11 km deep · 82 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1067849. Read Thu, Oct 1, 2026, 3:24 PM UTC.