California earthquakes

M1.9 earthquake 17 km NNE of Upper Lake, California

A magnitude 1.9 earthquake struck 17 km NNE of Upper Lake, California on Sat, Dec 5, 1981, 9:51 PM PST (05:51 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.5 16 km E of Lower Lake, California. This one was a foreshock.

Upper Lake forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
1.9 (md), micro
Local time
UTC
1981-12-06 05:51:42 UTC
Depth
5.7 km (3.6 mi), shallow
Epicenter
39.306° N, 122.831° 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 0.2 km horizontally, 1.6 km in depth
Magnitude uncertainty
±0.22
Depth from
From location
Station coverage gap
74°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 153 in the 60 days after this one and 77 in the 30 days before it.

After

  1. 1.6Northern California · 16368 days ago · 1 km deep · 55 km away
  2. 1.86 km WSW of Cobb, California · 16368 days ago · -1 km deep · 57 km away
  3. 2.26 km W of Cobb, California · 16368 days ago · 0 km deep · 55 km away
  4. 2.07 km S of Calistoga, California · 16368 days ago · 7 km deep · 91 km away
  5. 1.67 km W of Cobb, California · 16368 days ago · 1 km deep · 55 km away
  6. 1.83 km NE of Graton, California · 16367 days ago · 4 km deep · 94 km away
  7. 1.6Northern California · 16367 days ago · 1 km deep · 53 km away
  8. 2.33 km NNW of Larkfield-Wikiup, California · 16367 days ago · 5 km deep · 86 km away
  9. 3.27 km ENE of Brooktrails, California · 16367 days ago · 10 km deep · 45 km away
  10. 2.221 km W of Stonyford, California · 16366 days ago · 4 km deep · 10 km away
  11. 2.54 km NNW of Laytonville, California · 16366 days ago · 10 km deep · 74 km away
  12. 1.84 km NNW of Laytonville, California · 16366 days ago · 8 km deep · 74 km away
  13. 1.58 km WSW of Cobb, California · 16366 days ago · 2 km deep · 56 km away
  14. 2.314 km WNW of Paskenta, California · 16366 days ago · 7 km deep · 72 km away
  15. 2.721 km W of Stonyford, California · 16365 days ago · 4 km deep · 10 km away
  16. 2.0Northern California · 16365 days ago · 2 km deep · 10 km away
  17. 2.59 km WSW of Cobb, California · 16364 days ago · 2 km deep · 56 km away
  18. 3.35 km W of Cobb, California · 16364 days ago · 4 km deep · 54 km away
  19. 1.56 km W of Cobb, California · 16364 days ago · 4 km deep · 55 km away
  20. 1.78 km W of Cobb, California · 16364 days ago · 1 km deep · 54 km away
  21. 2.17 km NNE of Hidden Valley Lake, California · 16364 days ago · 7 km deep · 55 km away
  22. 1.79 km WSW of Cobb, California · 16364 days ago · 2 km deep · 56 km away
  23. 1.66 km W of Cobb, California · 16363 days ago · 1 km deep · 55 km away
  24. 1.88 km E of Willits, California · 16363 days ago · 8 km deep · 38 km away
  25. 1.6Northern California · 16362 days ago · 0 km deep · 57 km away
  26. 1.64 km WSW of Cobb, California · 16362 days ago · 1 km deep · 56 km away
  27. 1.57 km WSW of Cobb, California · 16361 days ago · 1 km deep · 57 km away
  28. 1.55 km SW of Laytonville, California · 16360 days ago · -1 km deep · 71 km away
  29. 1.710 km ENE of Hidden Valley Lake, California · 16360 days ago · 4 km deep · 62 km away
  30. 1.76 km W of Cobb, California · 16360 days ago · 1 km deep · 53 km away
  31. 1.63 km NNW of Clearlake, California · 16360 days ago · 73 km deep · 39 km away
  32. 2.512 km NW of Stonyford, California · 16359 days ago · 9 km deep · 21 km away
  33. 2.512 km WNW of Stonyford, California · 16359 days ago · 9 km deep · 20 km away
  34. 1.87 km WSW of Cobb, California · 16358 days ago · 2 km deep · 56 km away
  35. 1.97 km WSW of Cobb, California · 16358 days ago · 1 km deep · 56 km away
  36. 1.89 km WSW of Cobb, California · 16357 days ago · 0 km deep · 57 km away
  37. 2.66 km W of Cobb, California · 16356 days ago · 4 km deep · 55 km away
  38. 1.57 km WSW of Cobb, California · 16356 days ago · 0 km deep · 57 km away
  39. 1.66 km W of Cobb, California · 16355 days ago · 2 km deep · 55 km away
  40. 1.66 km W of Cobb, California · 16355 days ago · 2 km deep · 55 km away
  41. 2.29 km WSW of Cobb, California · 16355 days ago · 2 km deep · 56 km away
  42. 1.57 km W of Cobb, California · 16355 days ago · 1 km deep · 55 km away
  43. 1.69 km NNE of Laytonville, California · 16354 days ago · 4 km deep · 74 km away
  44. 2.210 km W of Laytonville, California · 16354 days ago · 49 km deep · 80 km away
  45. 1.620 km NE of Potter Valley, California · 16354 days ago · 4 km deep · 20 km away
  46. 1.720 km NE of Potter Valley, California · 16354 days ago · 7 km deep · 20 km away
  47. 1.87 km W of Cobb, California · 16354 days ago · 3 km deep · 55 km away
  48. 1.8Northern California · 16353 days ago · 4 km deep · 66 km away
  49. 1.5Northern California · 16353 days ago · 1 km deep · 56 km away
  50. 2.0Northern California · 16353 days ago · 3 km deep · 54 km away
  51. 1.95 km WSW of Cobb, California · 16352 days ago · 1 km deep · 55 km away
  52. 1.631 km ESE of Covelo, California · 16350 days ago · 7 km deep · 45 km away
  53. 1.59 km SW of Calistoga, California · 16350 days ago · 4 km deep · 90 km away
  54. 1.77 km S of Comptche, California · 16350 days ago · 4 km deep · 68 km away
  55. 1.83 km ENE of Clear Lake Riviera, California · 16350 days ago · 2 km deep · 40 km away
  56. 2.97 km WSW of Cobb, California · 16350 days ago · 1 km deep · 56 km away
  57. 2.28 km NW of Redwood Valley, California · 16349 days ago · 3 km deep · 39 km away
  58. 1.96 km W of Cobb, California · 16348 days ago · 3 km deep · 55 km away
  59. 2.84 km NE of Hopland, California · 16348 days ago · 6 km deep · 40 km away
  60. 2.59 km WSW of Cobb, California · 16348 days ago · 2 km deep · 56 km away

The first 60 of 153.

Before

  1. 2.213 km NW of Moskowite Corner, California · 16368 days ago · 9 km deep · 97 km away
  2. 1.82 km NNE of Laytonville, California · 16369 days ago · 4 km deep · 71 km away
  3. 2.54 km NNW of Laytonville, California · 16369 days ago · 10 km deep · 74 km away
  4. 1.66 km WSW of Cobb, California · 16369 days ago · 4 km deep · 56 km away
  5. 1.621 km W of Stonyford, California · 16370 days ago · 1 km deep · 10 km away
  6. 1.829 km WSW of Paskenta, California · 16370 days ago · 10 km deep · 50 km away
  7. 1.88 km N of Geyserville, California · 16370 days ago · 3 km deep · 59 km away
  8. 1.98 km N of Geyserville, California · 16370 days ago · 4 km deep · 59 km away
  9. 1.78 km N of Geyserville, California · 16370 days ago · 4 km deep · 59 km away
  10. 2.58 km N of Geyserville, California · 16370 days ago · 4 km deep · 59 km away
  11. 1.98 km N of Geyserville, California · 16370 days ago · 4 km deep · 59 km away
  12. 2.98 km N of Geyserville, California · 16370 days ago · 5 km deep · 59 km away
  13. 1.78 km ESE of Cloverdale, California · 16371 days ago · 5 km deep · 58 km away
  14. 2.38 km ESE of Cloverdale, California · 16372 days ago · 5 km deep · 58 km away
  15. 1.88 km ESE of Cloverdale, California · 16372 days ago · 5 km deep · 58 km away
  16. 2.98 km N of Geyserville, California · 16372 days ago · 5 km deep · 58 km away
  17. 2.08 km N of Geyserville, California · 16372 days ago · 5 km deep · 59 km away
  18. 1.57 km NE of Healdsburg, California · 16372 days ago · 4 km deep · 72 km away
  19. 2.011 km S of Laytonville, California · 16372 days ago · -1 km deep · 63 km away
  20. 2.238 km WNW of Paskenta, California · 16372 days ago · 2 km deep · 86 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1070045. Read Tue, Sep 29, 2026, 11:53 AM UTC.