California earthquakes

M1.9 earthquake 23 km SE of Ruth, California

A magnitude 1.9 earthquake struck 23 km SE of Ruth, California on Fri, Feb 10, 1984, 4:03 PM PST (00:03 UTC), 36 km (22 mi) below the surface.

A larger quake followed: M2.6 6 km E of Willits, 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
1.9 (md), micro
Local time
UTC
1984-02-11 00:03:42 UTC
Depth
36.0 km (22.4 mi), shallow
Epicenter
40.111° N, 123.139° 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 0.7 km horizontally, 2.3 km in depth
Magnitude uncertainty
±0.01
Depth from
From location
Station coverage gap
82°
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 64 in the 60 days after this one and 33 in the 30 days before it.

After

  1. 2.66 km E of Willits, California · 15564 days ago · -1 km deep · 78 km away
  2. 1.54 km WNW of Potter Valley, California · 15564 days ago · 9 km deep · 86 km away
  3. 1.921 km N of Potter Valley, California · 15564 days ago · 0 km deep · 66 km away
  4. 2.36 km WSW of Scotia, California · 15564 days ago · 8 km deep · 96 km away
  5. 2.25 km WSW of Scotia, California · 15564 days ago · 8 km deep · 94 km away
  6. 3.15 km SW of Scotia, California · 15564 days ago · 8 km deep · 94 km away
  7. 2.45 km SW of Scotia, California · 15564 days ago · 8 km deep · 94 km away
  8. 2.46 km N of Millville, California · 15561 days ago · 22 km deep · 99 km away
  9. 1.66 km ESE of Bella Vista, California · 15560 days ago · 22 km deep · 99 km away
  10. 2.013 km ESE of Laytonville, California · 15559 days ago · 3 km deep · 55 km away
  11. 2.69 km WNW of Laytonville, California · 15557 days ago · 2 km deep · 56 km away
  12. 2.937 km NW of Paskenta, California · 15553 days ago · -1 km deep · 27 km away
  13. 2.90 km N of Myers Flat, California · 15553 days ago · 29 km deep · 65 km away
  14. 1.822 km N of Potter Valley, California · 15551 days ago · 0 km deep · 65 km away
  15. 2.19 km SW of Laytonville, California · 15550 days ago · -1 km deep · 64 km away
  16. 2.37 km ESE of Willits, California · 15548 days ago · 3 km deep · 82 km away
  17. 1.83 km E of Calpella, California · 15548 days ago · 2 km deep · 97 km away
  18. 1.515 km NE of Myers Flat, California · 15547 days ago · 0 km deep · 59 km away
  19. 1.917 km ENE of Potter Valley, California · 15547 days ago · 7 km deep · 81 km away
  20. 1.75 km E of Brooktrails, California · 15547 days ago · 5 km deep · 75 km away
  21. 2.210 km W of Covelo, California · 15546 days ago · -1 km deep · 40 km away
  22. 2.19 km NE of Proberta, California · 15543 days ago · 28 km deep · 89 km away
  23. 1.825 km W of Paskenta, California · 15543 days ago · 3 km deep · 40 km away
  24. 1.712 km ESE of Leggett, California · 15539 days ago · 7 km deep · 49 km away
  25. 1.518 km ENE of Potter Valley, California · 15538 days ago · 8 km deep · 84 km away
  26. 2.18 km E of Willits, California · 15537 days ago · 7 km deep · 79 km away
  27. 1.91 km WNW of Redwood Valley, California · 15537 days ago · 5 km deep · 94 km away
  28. 1.925 km SE of Covelo, California · 15535 days ago · 5 km deep · 56 km away
  29. 1.711 km NNE of Hyampom, California · 15534 days ago · 28 km deep · 71 km away
  30. 1.73 km W of Redwood Valley, California · 15534 days ago · 6 km deep · 95 km away
  31. 2.024 km SE of Covelo, California · 15533 days ago · 4 km deep · 55 km away
  32. 1.713 km WSW of Paynes Creek, California · 15529 days ago · 6 km deep · 94 km away
  33. 2.13 km WSW of Hydesville, California · 15529 days ago · 20 km deep · 97 km away
  34. 1.97 km E of Willits, California · 15529 days ago · 8 km deep · 79 km away
  35. 2.1near the coast of Northern California · 15528 days ago · 8 km deep · 71 km away
  36. 1.624 km ENE of Hydesville, California · 15527 days ago · 20 km deep · 82 km away
  37. 1.511 km S of Paskenta, California · 15527 days ago · 4 km deep · 61 km away
  38. 2.313 km N of Comptche, California · 15526 days ago · 21 km deep · 89 km away
  39. 1.97 km E of Willits, California · 15525 days ago · 7 km deep · 80 km away
  40. 1.82 km ENE of Millville, California · 15522 days ago · 17 km deep · 98 km away
  41. 3.029 km NNW of Junction City, California · 15522 days ago · 40 km deep · 98 km away
  42. 3.24 km N of Redwood Valley, California · 15522 days ago · 8 km deep · 90 km away
  43. 1.74 km N of Redwood Valley, California · 15522 days ago · 4 km deep · 90 km away
  44. 1.620 km WSW of Weott, California · 15521 days ago · 12 km deep · 85 km away
  45. 2.018 km WSW of Weott, California · 15521 days ago · 12 km deep · 84 km away
  46. 1.619 km WSW of Weott, California · 15521 days ago · 14 km deep · 84 km away
  47. 1.611 km S of Laytonville, California · 15521 days ago · -1 km deep · 66 km away
  48. 2.213 km ENE of Hydesville, California · 15517 days ago · 25 km deep · 89 km away
  49. 1.94 km ENE of Millville, California · 15517 days ago · 4 km deep · 99 km away
  50. 1.720 km NE of Potter Valley, California · 15515 days ago · 5 km deep · 76 km away
  51. 1.829 km ENE of Covelo, California · 15515 days ago · -1 km deep · 28 km away
  52. 1.611 km SE of Hyampom, California · 15513 days ago · 22 km deep · 52 km away
  53. 1.59 km ENE of Brooktrails, California · 15512 days ago · 10 km deep · 71 km away
  54. 1.718 km NNE of Upper Lake, California · 15510 days ago · 9 km deep · 91 km away
  55. 1.78 km SE of Willits, California · 15510 days ago · -1 km deep · 85 km away
  56. 1.69 km ESE of Willits, California · 15509 days ago · 6 km deep · 84 km away
  57. 2.61 km NW of Myers Flat, California · 15509 days ago · 29 km deep · 66 km away
  58. 1.79 km S of Hyampom, California · 15509 days ago · 4 km deep · 54 km away
  59. 2.18 km SE of Willits, California · 15508 days ago · 2 km deep · 84 km away
  60. 1.616 km ENE of Potter Valley, California · 15506 days ago · 8 km deep · 83 km away

The first 60 of 64.

Before

  1. 2.218 km NE of Upper Lake, California · 15565 days ago · 7 km deep · 97 km away
  2. 2.116 km SW of Paskenta, California · 15565 days ago · 9 km deep · 57 km away
  3. 1.68 km W of Rio Dell, California · 15570 days ago · 19 km deep · 100 km away
  4. 1.89 km WSW of Paynes Creek, California · 15570 days ago · 3 km deep · 97 km away
  5. 1.728 km ESE of Covelo, California · 15572 days ago · 8 km deep · 47 km away
  6. 2.36 km E of Garberville, California · 15573 days ago · 19 km deep · 50 km away
  7. 1.85 km E of Calpella, California · 15573 days ago · 2 km deep · 98 km away
  8. 1.61 km ENE of Redwood Valley, California · 15575 days ago · -1 km deep · 94 km away
  9. 1.623 km WNW of Stonyford, California · 15576 days ago · 4 km deep · 81 km away
  10. 1.614 km WSW of Leggett, California · 15576 days ago · 4 km deep · 71 km away
  11. 1.94 km NNE of Mad River, California · 15579 days ago · 4 km deep · 52 km away
  12. 3.025 km SW of Scotia, California · 15581 days ago · 10 km deep · 99 km away
  13. 2.727 km SW of Scotia, California · 15581 days ago · 7 km deep · 100 km away
  14. 1.9near the coast of Northern California · 15581 days ago · 8 km deep · 79 km away
  15. 1.66 km WNW of Mad River, California · 15582 days ago · 9 km deep · 54 km away
  16. 1.66 km NNE of Millville, California · 15583 days ago · 4 km deep · 100 km away
  17. 1.97 km WNW of Central Valley (historical), California · 15583 days ago · 26 km deep · 87 km away
  18. 1.622 km NE of Potter Valley, California · 15585 days ago · 7 km deep · 73 km away
  19. 1.914 km NE of Upper Lake, California · 15586 days ago · 7 km deep · 97 km away
  20. 2.25 km SE of Hayfork, California · 15587 days ago · 21 km deep · 46 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1111133. Read Tue, Sep 22, 2026, 11:22 AM UTC.