California earthquakes

M2.3 earthquake 26 km S of Ruth, California

A magnitude 2.3 earthquake struck 26 km S of Ruth, California on Mon, Feb 18, 1985, 12:25 PM PST (20:25 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M3.5 29 km SW of Scotia, 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
2.3 (md), micro
Local time
UTC
1985-02-18 20:25:18 UTC
Depth
-1.3 km (-0.8 mi), shallow
Epicenter
40.028° N, 123.348° 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 0.4 km horizontally, 2.5 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
69°
Stations used
22

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 24 in the 30 days before it.

After

  1. 2.213 km SSW of Laytonville, California · 15189 days ago · -1 km deep · 53 km away
  2. 1.65 km W of Laytonville, California · 15189 days ago · 5 km deep · 42 km away
  3. 1.64 km WSW of Laytonville, California · 15189 days ago · 2 km deep · 43 km away
  4. 2.113 km N of Upper Lake, California · 15189 days ago · 12 km deep · 90 km away
  5. 3.529 km SW of Scotia, California · 15187 days ago · 9 km deep · 90 km away
  6. 2.228 km SW of Scotia, California · 15185 days ago · 10 km deep · 91 km away
  7. 1.726 km SW of Scotia, California · 15185 days ago · 3 km deep · 89 km away
  8. 2.126 km SW of Scotia, California · 15185 days ago · 5 km deep · 88 km away
  9. 1.529 km SW of Scotia, California · 15185 days ago · 2 km deep · 90 km away
  10. 2.028 km SE of Blue Lake, California · 15184 days ago · 22 km deep · 81 km away
  11. 1.79 km NE of Covelo, California · 15183 days ago · 7 km deep · 23 km away
  12. 2.63 km ESE of Scotia, California · 15177 days ago · 18 km deep · 78 km away
  13. 1.617 km WNW of Brooktrails, California · 15174 days ago · 1 km deep · 65 km away
  14. 1.79 km W of Cottonwood, California · 15173 days ago · 5 km deep · 90 km away
  15. 1.911 km NNE of Comptche, California · 15171 days ago · 2 km deep · 76 km away
  16. 2.010 km SSE of Leggett, California · 15168 days ago · 6 km deep · 39 km away
  17. 2.411 km NW of Ruth, California · 15167 days ago · 29 km deep · 35 km away
  18. 1.832 km SSW of Ferndale, California · 15165 days ago · 4 km deep · 100 km away
  19. 3.020 km NNE of Upper Lake, California · 15165 days ago · 10 km deep · 90 km away
  20. 1.827 km WSW of Leggett, California · 15162 days ago · 2 km deep · 63 km away
  21. 1.54 km N of Laytonville, California · 15160 days ago · 11 km deep · 36 km away
  22. 1.819 km NNE of Upper Lake, California · 15159 days ago · 0 km deep · 90 km away
  23. 1.924 km W of Paskenta, California · 15159 days ago · -1 km deep · 46 km away
  24. 3.15 km WSW of Laytonville, California · 15159 days ago · 2 km deep · 43 km away
  25. 2.49 km S of Ferndale, California · 15159 days ago · 26 km deep · 94 km away
  26. 1.930 km SSW of Ferndale, California · 15158 days ago · 7 km deep · 97 km away
  27. 1.912 km NW of Upper Lake, California · 15158 days ago · 5 km deep · 92 km away
  28. 2.831 km SW of Scotia, California · 15156 days ago · 21 km deep · 92 km away
  29. 2.521 km WSW of Scotia, California · 15156 days ago · 22 km deep · 90 km away
  30. 1.621 km S of Ruth, California · 15154 days ago · 6 km deep · 8 km away
  31. 2.322 km S of Ruth, California · 15154 days ago · 8 km deep · 5 km away
  32. 2.48 km ESE of Hydesville, California · 15153 days ago · 20 km deep · 78 km away
  33. 1.815 km N of Shelter Cove, California · 15152 days ago · 23 km deep · 65 km away
  34. 2.031 km SSW of Ferndale, California · 15151 days ago · 4 km deep · 97 km away
  35. 1.72 km ESE of Garberville, California · 15149 days ago · 20 km deep · 36 km away
  36. 1.96 km WNW of Covelo, California · 15149 days ago · 6 km deep · 25 km away
  37. 1.98 km SSW of Ferndale, California · 15148 days ago · 19 km deep · 96 km away
  38. 3.59 km S of Ferndale, California · 15148 days ago · 18 km deep · 95 km away
  39. 2.89 km S of Ferndale, California · 15147 days ago · 18 km deep · 94 km away
  40. 2.09 km S of Ferndale, California · 15147 days ago · 18 km deep · 94 km away
  41. 3.323 km SW of Scotia, California · 15147 days ago · 20 km deep · 89 km away
  42. 2.27 km NNE of Elk Creek, California · 15145 days ago · 12 km deep · 83 km away
  43. 2.09 km N of Upper Lake, California · 15144 days ago · 4 km deep · 95 km away
  44. 2.715 km S of Scotia, California · 15144 days ago · 21 km deep · 76 km away
  45. 3.114 km N of Brooktrails, California · 15143 days ago · -1 km deep · 50 km away
  46. 1.827 km SW of Scotia, California · 15143 days ago · 9 km deep · 88 km away
  47. 1.65 km SSW of Redcrest, California · 15142 days ago · 21 km deep · 65 km away
  48. 2.314 km SSW of Scotia, California · 15142 days ago · 29 km deep · 79 km away
  49. 2.516 km NNE of Elk Creek, California · 15140 days ago · 0 km deep · 83 km away
  50. 1.83 km WSW of Myers Flat, California · 15140 days ago · 5 km deep · 54 km away
  51. 1.74 km WSW of Laytonville, California · 15140 days ago · 4 km deep · 43 km away
  52. 2.18 km NE of Hydesville, California · 15140 days ago · 18 km deep · 85 km away
  53. 2.311 km SSE of Laytonville, California · 15138 days ago · 7 km deep · 48 km away
  54. 2.04 km SE of Ferndale, California · 15138 days ago · 23 km deep · 94 km away
  55. 2.73 km SE of Ferndale, California · 15138 days ago · 23 km deep · 95 km away
  56. 1.615 km WSW of Laytonville, California · 15137 days ago · 3 km deep · 50 km away
  57. 1.712 km ENE of Redcrest, California · 15136 days ago · 24 km deep · 63 km away
  58. 2.07 km NE of Covelo, California · 15135 days ago · 5 km deep · 25 km away
  59. 1.918 km NE of Upper Lake, California · 15135 days ago · 7 km deep · 95 km away
  60. 1.710 km SSE of Laytonville, California · 15134 days ago · 7 km deep · 48 km away

The first 60 of 61.

Before

  1. 1.63 km ENE of Redwood Valley, California · 15191 days ago · 4 km deep · 85 km away
  2. 2.022 km NNE of Potter Valley, California · 15194 days ago · 7 km deep · 67 km away
  3. 2.922 km NNE of Potter Valley, California · 15194 days ago · 7 km deep · 67 km away
  4. 2.122 km NNE of Potter Valley, California · 15195 days ago · 7 km deep · 67 km away
  5. 2.18 km ENE of Trinity Village, California · 15198 days ago · 18 km deep · 99 km away
  6. 1.813 km N of Brooktrails, California · 15198 days ago · 4 km deep · 52 km away
  7. 2.015 km S of Laytonville, California · 15201 days ago · 4 km deep · 55 km away
  8. 2.612 km SSW of Scotia, California · 15203 days ago · 29 km deep · 77 km away
  9. 1.69 km E of Willits, California · 15203 days ago · 8 km deep · 70 km away
  10. 1.68 km ENE of Willits, California · 15203 days ago · 9 km deep · 66 km away
  11. 1.715 km WSW of Hyampom, California · 15205 days ago · 15 km deep · 64 km away
  12. 2.45 km E of Redwood Valley, California · 15206 days ago · 7 km deep · 87 km away
  13. 1.66 km E of Willits, California · 15207 days ago · 5 km deep · 69 km away
  14. 1.61 km SW of Redwood Valley, California · 15208 days ago · 3 km deep · 87 km away
  15. 2.325 km NNE of Redcrest, California · 15210 days ago · 7 km deep · 74 km away
  16. 1.818 km ENE of Potter Valley, California · 15210 days ago · 9 km deep · 79 km away
  17. 1.68 km WSW of Scotia, California · 15211 days ago · 5 km deep · 85 km away
  18. 1.75 km W of Calpella, California · 15212 days ago · 2 km deep · 89 km away
  19. 1.53 km ENE of Willits, California · 15213 days ago · 7 km deep · 67 km away
  20. 2.423 km WSW of Weott, California · 15214 days ago · 10 km deep · 74 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc41480. Read Tue, Sep 22, 2026, 4:16 PM UTC.