California earthquakes

M1.7 earthquake 8 km S of Hamilton City, California

A magnitude 1.7 earthquake struck 8 km S of Hamilton City, California on Tue, Nov 10, 1981, 6:07 AM PST (14:07 UTC), 17 km (11 mi) below the surface.

A larger quake followed: M2.7 21 km W of Stonyford, California. This one was a foreshock.

Hamilton City 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), micro
Local time
UTC
1981-11-10 14:07:43 UTC
Depth
17.0 km (10.5 mi), shallow
Epicenter
39.672° N, 122.032° 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 0.5 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
139°
Stations used
9

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 39 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 1.86 km NNW of Bucks Lake, California · 16390 days ago · 11 km deep · 76 km away
  2. 1.619 km ENE of Potter Valley, California · 16381 days ago · 1 km deep · 81 km away
  3. 1.511 km NNE of Potter Valley, California · 16380 days ago · 3 km deep · 94 km away
  4. 2.320 km NE of Potter Valley, California · 16380 days ago · 7 km deep · 81 km away
  5. 1.610 km ESE of Covelo, California · 16374 days ago · -1 km deep · 95 km away
  6. 2.238 km WNW of Paskenta, California · 16373 days ago · 2 km deep · 89 km away
  7. 1.93 km S of South Oroville, California · 16373 days ago · 11 km deep · 47 km away
  8. 1.815 km WSW of Chester, California · 16372 days ago · 3 km deep · 84 km away
  9. 1.62 km E of Shingletown, California · 16371 days ago · 3 km deep · 92 km away
  10. 1.829 km WSW of Paskenta, California · 16371 days ago · 10 km deep · 70 km away
  11. 1.621 km W of Stonyford, California · 16371 days ago · 1 km deep · 72 km away
  12. 1.94 km NW of Lake Almanor West, California · 16370 days ago · 26 km deep · 94 km away
  13. 1.917 km NNE of Upper Lake, California · 16369 days ago · 6 km deep · 80 km away
  14. 2.221 km W of Stonyford, California · 16367 days ago · 4 km deep · 72 km away
  15. 1.85 km WNW of Manton, California · 16367 days ago · 3 km deep · 87 km away
  16. 2.314 km WNW of Paskenta, California · 16367 days ago · 7 km deep · 65 km away
  17. 2.721 km W of Stonyford, California · 16366 days ago · 4 km deep · 72 km away
  18. 2.0Northern California · 16366 days ago · 2 km deep · 72 km away
  19. 2.17 km NNE of Hidden Valley Lake, California · 16365 days ago · 7 km deep · 99 km away
  20. 2.77 km WNW of Paradise, California · 16365 days ago · 5 km deep · 30 km away
  21. 2.12 km SE of South Oroville, California · 16363 days ago · 9 km deep · 48 km away
  22. 1.710 km ENE of Hidden Valley Lake, California · 16361 days ago · 4 km deep · 100 km away
  23. 1.63 km NNW of Clearlake, California · 16361 days ago · 73 km deep · 93 km away
  24. 2.512 km NW of Stonyford, California · 16360 days ago · 9 km deep · 60 km away
  25. 2.512 km WNW of Stonyford, California · 16360 days ago · 9 km deep · 60 km away
  26. 2.48 km WNW of Belden, California · 16356 days ago · 4 km deep · 71 km away
  27. 1.620 km NE of Potter Valley, California · 16355 days ago · 4 km deep · 82 km away
  28. 1.720 km NE of Potter Valley, California · 16355 days ago · 7 km deep · 82 km away
  29. 1.64 km N of Shingletown, California · 16354 days ago · 3 km deep · 97 km away
  30. 1.86 km W of Dobbins, California · 16353 days ago · 14 km deep · 72 km away
  31. 2.110 km SW of Lake Almanor West, California · 16352 days ago · 4 km deep · 84 km away
  32. 1.631 km ESE of Covelo, California · 16351 days ago · 7 km deep · 74 km away
  33. 1.83 km ENE of Clear Lake Riviera, California · 16351 days ago · 2 km deep · 97 km away
  34. 2.20 km WNW of Millville, California · 16349 days ago · 19 km deep · 99 km away
  35. 1.814 km NNE of Mineral, California · 16348 days ago · 2 km deep · 98 km away
  36. 1.95 km NNE of Clearlake, California · 16347 days ago · -1 km deep · 88 km away
  37. 1.914 km NNE of Mineral, California · 16343 days ago · 3 km deep · 98 km away
  38. 1.912 km NE of Lucerne, California · 16341 days ago · 0 km deep · 80 km away
  39. 1.71 km NNE of Loma Rica, California · 16336 days ago · 5 km deep · 66 km away

Before

  1. 1.5Northern California · 16395 days ago · 19 km deep · 0 km away
  2. 1.715 km WSW of Paskenta, California · 16395 days ago · 4 km deep · 62 km away
  3. 1.81 km SSW of Hamilton City, California · 16395 days ago · 6 km deep · 7 km away
  4. 2.615 km ENE of Shingletown, California · 16398 days ago · 9 km deep · 100 km away
  5. 2.523 km W of Elk Creek, California · 16399 days ago · 6 km deep · 67 km away
  6. 1.73 km NW of Chester, California · 16399 days ago · 2 km deep · 98 km away
  7. 1.55 km NW of Chester, California · 16399 days ago · 2 km deep · 97 km away
  8. 2.79 km NE of Gerber, California · 16400 days ago · 24 km deep · 48 km away
  9. 2.66 km N of Robbins, California · 16406 days ago · 21 km deep · 88 km away
  10. 2.129 km WSW of Paskenta, California · 16410 days ago · 11 km deep · 73 km away
  11. 3.110 km N of Chico, California · 16411 days ago · 22 km deep · 24 km away
  12. 1.510 km NE of Mineral, California · 16423 days ago · -2 km deep · 94 km away
  13. 2.26 km WSW of Paradise, California · 16424 days ago · 16 km deep · 31 km away
  14. 2.214 km S of Hamilton City, California · 16424 days ago · 23 km deep · 7 km away
  15. 1.618 km NE of Upper Lake, California · 16425 days ago · 5 km deep · 77 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1069338. Read Wed, Sep 30, 2026, 12:12 PM UTC.