California earthquakes

M2.2 earthquake 12 km WSW of Chester, California

A magnitude 2.2 earthquake struck 12 km WSW of Chester, California on Wed, Jun 24, 1981, 11:29 AM PDT (18:29 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.4 5 km SE of Palermo, California. This one was a foreshock.

Chester 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
2.2 (md), micro
Local time
UTC
1981-06-24 18:29:28 UTC
Depth
3.1 km (1.9 mi), shallow
Epicenter
40.247° N, 121.353° 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 4.8 km horizontally, 8.4 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
280°, poorly surrounded by stations
Stations used
4

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 47 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 1.818 km ENE of Shingletown, California · 16532 days ago · 8 km deep · 44 km away
  2. 1.87 km E of Manton, California · 16532 days ago · 3 km deep · 41 km away
  3. 2.2Northern California · 16531 days ago · 4 km deep · 96 km away
  4. 3.45 km SE of Palermo, California · 16528 days ago · 7 km deep · 95 km away
  5. 1.84 km SE of Palermo, California · 16528 days ago · 5 km deep · 95 km away
  6. 1.94 km SE of Palermo, California · 16527 days ago · 7 km deep · 95 km away
  7. 2.13 km NW of Lake Almanor Country Club, California · 16526 days ago · 3 km deep · 15 km away
  8. 2.012 km WNW of Burney, California · 16526 days ago · 3 km deep · 84 km away
  9. 1.916 km S of Round Mountain, California · 16522 days ago · 4 km deep · 66 km away
  10. 2.514 km NNE of Mineral, California · 16520 days ago · 2 km deep · 28 km away
  11. 2.915 km NNE of Mineral, California · 16520 days ago · 0 km deep · 28 km away
  12. 1.612 km WSW of Chester, California · 16519 days ago · 3 km deep · 4 km away
  13. 1.716 km NE of Mineral, California · 16517 days ago · 1 km deep · 27 km away
  14. 2.03 km ESE of Palermo, California · 16515 days ago · 4 km deep · 93 km away
  15. 2.54 km SE of Palermo, California · 16514 days ago · 7 km deep · 95 km away
  16. 1.50 km NW of Lake Almanor Country Club, California · 16513 days ago · 2 km deep · 17 km away
  17. 2.54 km SE of Palermo, California · 16513 days ago · 7 km deep · 95 km away
  18. 2.611 km NE of Nord, California · 16512 days ago · 21 km deep · 62 km away
  19. 2.3Northern California · 16510 days ago · 2 km deep · 78 km away
  20. 2.86 km NNW of Thermalito, California · 16510 days ago · 2 km deep · 78 km away
  21. 2.913 km E of Bend, California · 16508 days ago · 24 km deep · 59 km away
  22. 1.52 km ESE of Nord, California · 16508 days ago · 14 km deep · 72 km away
  23. 1.8Northern California · 16508 days ago · 9 km deep · 65 km away
  24. 1.82 km NE of Canyondam, California · 16508 days ago · 2 km deep · 26 km away
  25. 2.0Northern California · 16508 days ago · 13 km deep · 86 km away
  26. 1.66 km NW of Plumas Eureka (historical), California · 16507 days ago · 1 km deep · 71 km away
  27. 1.93 km SW of East Shore, California · 16506 days ago · 1 km deep · 22 km away
  28. 2.75 km ESE of Chico, California · 16505 days ago · 19 km deep · 69 km away
  29. 2.010 km W of Lake Almanor West, California · 16503 days ago · 3 km deep · 2 km away
  30. 1.94 km SE of Palermo, California · 16502 days ago · 6 km deep · 94 km away
  31. 2.14 km SSW of Whitehawk, California · 16502 days ago · 14 km deep · 91 km away
  32. 2.27 km NE of Montgomery Creek, California · 16502 days ago · 7 km deep · 83 km away
  33. 1.86 km WSW of Durham, California · 16496 days ago · 29 km deep · 83 km away
  34. 2.91 km ENE of Clipper Mills, California · 16496 days ago · 8 km deep · 81 km away
  35. 2.01 km ENE of Chester, California · 16494 days ago · 7 km deep · 14 km away
  36. 2.02 km ESE of Chester, California · 16493 days ago · 5 km deep · 14 km away
  37. 1.6Northern California · 16493 days ago · 3 km deep · 4 km away
  38. 1.9Northern California · 16491 days ago · 13 km deep · 65 km away
  39. 1.97 km ESE of Los Molinos, California · 16490 days ago · 3 km deep · 63 km away
  40. 1.615 km NNE of Butte Meadows, California · 16488 days ago · 3 km deep · 12 km away
  41. 2.30 km NW of Chester, California · 16484 days ago · 2 km deep · 12 km away
  42. 1.710 km SE of Mineral, California · 16481 days ago · 2 km deep · 13 km away
  43. 1.712 km ENE of Shingletown, California · 16481 days ago · 7 km deep · 48 km away
  44. 1.619 km N of Chester, California · 16480 days ago · 0 km deep · 29 km away
  45. 1.76 km SSE of Palermo, California · 16480 days ago · 1 km deep · 97 km away
  46. 1.51 km E of Oroville, California · 16478 days ago · 10 km deep · 83 km away
  47. 1.9Northern California · 16475 days ago · 3 km deep · 16 km away

Before

  1. 3.12 km NNW of Belden, California · 16536 days ago · 5 km deep · 26 km away
  2. 2.84 km ESE of Palermo, California · 16536 days ago · 5 km deep · 92 km away
  3. 1.81 km NNE of Clipper Mills, California · 16537 days ago · 7 km deep · 80 km away
  4. 2.07 km NNW of McArthur, California · 16539 days ago · 3 km deep · 96 km away
  5. 1.917 km NNW of Chester, California · 16540 days ago · 3 km deep · 24 km away
  6. 2.213 km WNW of Cohasset, California · 16549 days ago · 15 km deep · 54 km away
  7. 2.14 km NNW of Dobbins, California · 16552 days ago · 22 km deep · 94 km away
  8. 2.510 km SW of Spring Garden, California · 16552 days ago · -1 km deep · 63 km away
  9. 1.63 km ESE of Palermo, California · 16554 days ago · 3 km deep · 92 km away
  10. 2.311 km N of Chester, California · 16560 days ago · 2 km deep · 20 km away
  11. 1.84 km ESE of Manton, California · 16563 days ago · 22 km deep · 44 km away
  12. 2.91 km SW of Clipper Mills, California · 16563 days ago · 14 km deep · 82 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1064849. Read Wed, Sep 30, 2026, 4:00 PM UTC.