California earthquakes

M2.2 earthquake 18 km SE of Ruth, California

A magnitude 2.2 earthquake struck 18 km SE of Ruth, California on Wed, Dec 26, 1984, 3:55 PM PST (23:55 UTC), 36 km (22 mi) below the surface.

A larger quake followed: M2.8 25 km NNE of Redcrest, California. This one was a foreshock.

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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
1984-12-26 23:55:55 UTC
Depth
35.9 km (22.3 mi), shallow
Epicenter
40.152° N, 123.165° 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 0.8 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
69°
Stations used
19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 61 in the 60 days after this one and 28 in the 30 days before it.

After

  1. 2.825 km NNE of Redcrest, California · 15244 days ago · 1 km deep · 73 km away
  2. 3.13 km ESE of Willow Creek, California · 15242 days ago · 23 km deep · 94 km away
  3. 1.67 km NNE of Cleone, California · 15242 days ago · 1 km deep · 83 km away
  4. 1.89 km NNW of Redwood Valley, California · 15242 days ago · 7 km deep · 89 km away
  5. 2.03 km ESE of Willow Creek, California · 15242 days ago · 21 km deep · 94 km away
  6. 1.916 km ENE of Potter Valley, California · 15241 days ago · 6 km deep · 87 km away
  7. 1.912 km E of Cottonwood, California · 15241 days ago · 18 km deep · 90 km away
  8. 1.610 km WNW of Potter Valley, California · 15241 days ago · 7 km deep · 88 km away
  9. 2.425 km NNE of Redcrest, California · 15240 days ago · 2 km deep · 73 km away
  10. 2.324 km ENE of Hydesville, California · 15239 days ago · -1 km deep · 74 km away
  11. 1.510 km SSE of Leggett, California · 15238 days ago · 1 km deep · 59 km away
  12. 2.312 km NE of Proberta, California · 15237 days ago · 12 km deep · 94 km away
  13. 2.016 km WNW of Paynes Creek, California · 15237 days ago · 18 km deep · 96 km away
  14. 1.615 km E of Cottonwood, California · 15236 days ago · 7 km deep · 93 km away
  15. 2.220 km NNE of Upper Lake, California · 15236 days ago · 7 km deep · 93 km away
  16. 1.619 km ENE of Potter Valley, California · 15235 days ago · 10 km deep · 88 km away
  17. 1.629 km NE of Covelo, California · 15234 days ago · -1 km deep · 23 km away
  18. 1.84 km NNW of Laytonville, California · 15234 days ago · 9 km deep · 55 km away
  19. 1.97 km SSW of Trinity Village, California · 15233 days ago · 27 km deep · 82 km away
  20. 3.012 km W of Paynes Creek, California · 15233 days ago · 17 km deep · 96 km away
  21. 1.810 km WNW of Paynes Creek, California · 15233 days ago · 4 km deep · 100 km away
  22. 2.625 km NNE of Redcrest, California · 15232 days ago · -1 km deep · 73 km away
  23. 1.916 km ENE of Potter Valley, California · 15232 days ago · 7 km deep · 86 km away
  24. 2.29 km ESE of Hyampom, California · 15229 days ago · 4 km deep · 52 km away
  25. 1.81 km SSE of Laytonville, California · 15228 days ago · 3 km deep · 59 km away
  26. 1.95 km W of Covelo, California · 15228 days ago · 8 km deep · 41 km away
  27. 2.26 km WNW of Potter Valley, California · 15228 days ago · 5 km deep · 90 km away
  28. 1.520 km NNE of Upper Lake, California · 15227 days ago · 5 km deep · 94 km away
  29. 1.64 km ENE of Willits, California · 15225 days ago · 2 km deep · 82 km away
  30. 1.614 km WSW of Laytonville, California · 15225 days ago · 4 km deep · 70 km away
  31. 2.616 km W of Paskenta, California · 15224 days ago · 1 km deep · 48 km away
  32. 1.928 km ENE of Covelo, California · 15220 days ago · -1 km deep · 37 km away
  33. 2.012 km NE of Trinity Village, California · 15218 days ago · 20 km deep · 92 km away
  34. 3.012 km S of Laytonville, California · 15218 days ago · 0 km deep · 70 km away
  35. 1.920 km NNE of Potter Valley, California · 15217 days ago · 7 km deep · 75 km away
  36. 2.423 km WSW of Weott, California · 15214 days ago · 10 km deep · 86 km away
  37. 1.53 km ENE of Willits, California · 15213 days ago · 7 km deep · 82 km away
  38. 1.68 km WSW of Scotia, California · 15212 days ago · 5 km deep · 93 km away
  39. 1.818 km ENE of Potter Valley, California · 15210 days ago · 9 km deep · 86 km away
  40. 2.325 km NNE of Redcrest, California · 15210 days ago · 7 km deep · 73 km away
  41. 1.66 km E of Willits, California · 15207 days ago · 5 km deep · 83 km away
  42. 2.45 km E of Redwood Valley, California · 15206 days ago · 7 km deep · 99 km away
  43. 1.715 km WSW of Hyampom, California · 15206 days ago · 15 km deep · 60 km away
  44. 1.68 km ENE of Willits, California · 15204 days ago · 9 km deep · 80 km away
  45. 1.69 km E of Willits, California · 15203 days ago · 8 km deep · 84 km away
  46. 2.612 km SSW of Scotia, California · 15203 days ago · 29 km deep · 86 km away
  47. 2.015 km S of Laytonville, California · 15201 days ago · 4 km deep · 73 km away
  48. 1.813 km N of Brooktrails, California · 15198 days ago · 4 km deep · 68 km away
  49. 2.18 km ENE of Trinity Village, California · 15198 days ago · 18 km deep · 88 km away
  50. 2.122 km NNE of Potter Valley, California · 15195 days ago · 7 km deep · 74 km away
  51. 2.922 km NNE of Potter Valley, California · 15194 days ago · 7 km deep · 74 km away
  52. 2.022 km NNE of Potter Valley, California · 15194 days ago · 7 km deep · 74 km away
  53. 1.63 km ENE of Redwood Valley, California · 15191 days ago · 4 km deep · 97 km away
  54. 2.326 km S of Ruth, California · 15191 days ago · -1 km deep · 21 km away
  55. 2.213 km SSW of Laytonville, California · 15189 days ago · -1 km deep · 71 km away
  56. 1.65 km W of Laytonville, California · 15189 days ago · 5 km deep · 62 km away
  57. 1.64 km WSW of Laytonville, California · 15189 days ago · 2 km deep · 62 km away
  58. 2.113 km N of Upper Lake, California · 15189 days ago · 12 km deep · 99 km away
  59. 1.85 km WSW of Bella Vista, California · 15187 days ago · 4 km deep · 90 km away
  60. 1.726 km SW of Scotia, California · 15185 days ago · 3 km deep · 100 km away

The first 60 of 61.

Before

  1. 1.816 km SSW of Scotia, California · 15246 days ago · 11 km deep · 85 km away
  2. 1.97 km NNE of Trinity Village, California · 15246 days ago · 16 km deep · 92 km away
  3. 1.913 km E of Cottonwood, California · 15250 days ago · 13 km deep · 92 km away
  4. 1.817 km ENE of Potter Valley, California · 15250 days ago · 7 km deep · 86 km away
  5. 1.67 km ENE of Brooktrails, California · 15252 days ago · 9 km deep · 77 km away
  6. 2.39 km ESE of Blue Lake, California · 15253 days ago · -1 km deep · 98 km away
  7. 2.227 km W of Paskenta, California · 15254 days ago · 9 km deep · 36 km away
  8. 1.812 km SW of Scotia, California · 15254 days ago · 19 km deep · 93 km away
  9. 2.316 km NE of Redcrest, California · 15254 days ago · 5 km deep · 68 km away
  10. 1.615 km SE of Laytonville, California · 15258 days ago · 9 km deep · 65 km away
  11. 2.315 km SW of Scotia, California · 15259 days ago · 28 km deep · 94 km away
  12. 1.86 km ENE of Benbow, California · 15260 days ago · 27 km deep · 47 km away
  13. 1.816 km SSW of Laytonville, California · 15261 days ago · -1 km deep · 74 km away
  14. 1.64 km ENE of Laytonville, California · 15262 days ago · -1 km deep · 55 km away
  15. 1.65 km W of Laytonville, California · 15264 days ago · 2 km deep · 61 km away
  16. 1.620 km ENE of Potter Valley, California · 15265 days ago · 5 km deep · 89 km away
  17. 1.816 km NNE of Upper Lake, California · 15267 days ago · 10 km deep · 100 km away
  18. 2.325 km SW of Scotia, California · 15269 days ago · 10 km deep · 98 km away
  19. 1.64 km NNE of Hydesville, California · 15270 days ago · 22 km deep · 91 km away
  20. 2.534 km NW of Paskenta, California · 15270 days ago · 5 km deep · 33 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1124743. Read Tue, Sep 22, 2026, 10:33 PM UTC.