California earthquakes

M2.7 earthquake 5 km E of Ruth, California

A magnitude 2.7 earthquake struck 5 km E of Ruth, California on Wed, Sep 5, 1990, 5:49 PM PDT (00:49 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M4.1 1 km ENE of Humboldt Hill, California. This one was a foreshock.

Hayfork forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
2.7 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1990-09-06 00:49:28 UTC
Depth
18.3 km (11.4 mi), shallow
Epicenter
40.264° N, 123.257° 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 0.3 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
67°
Stations used
21

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 59 in the 60 days after this one and 33 in the 30 days before it.

After

  1. 1.617 km NE of Potter Valley, California · 13174 days ago · 1 km deep · 98 km away
  2. 2.615 km S of Mad River, California · 13174 days ago · 30 km deep · 25 km away
  3. 1.92 km SSW of Ferndale, California · 13174 days ago · 4 km deep · 92 km away
  4. 2.18 km ESE of Hyampom, California · 13174 days ago · 19 km deep · 38 km away
  5. 2.511 km NNE of Redcrest, California · 13174 days ago · 18 km deep · 60 km away
  6. 2.112 km WSW of Hyampom, California · 13173 days ago · -1 km deep · 44 km away
  7. 1.815 km NNE of Cleone, California · 13173 days ago · 0 km deep · 81 km away
  8. 1.620 km NE of Potter Valley, California · 13171 days ago · 5 km deep · 94 km away
  9. 2.05 km ENE of Covelo, California · 13171 days ago · -1 km deep · 52 km away
  10. 1.913 km W of Anderson, California · 13170 days ago · 20 km deep · 71 km away
  11. 1.521 km NW of Covelo, California · 13169 days ago · 4 km deep · 37 km away
  12. 1.98 km NE of Brooktrails, California · 13168 days ago · 7 km deep · 86 km away
  13. 1.85 km NW of Palo Cedro, California · 13166 days ago · 19 km deep · 91 km away
  14. 2.76 km SW of Paskenta, California · 13165 days ago · 13 km deep · 74 km away
  15. 2.2Northern California · 13165 days ago · 27 km deep · 84 km away
  16. 3.024 km SSW of Ferndale, California · 13162 days ago · 17 km deep · 100 km away
  17. 1.57 km NW of Brooktrails, California · 13161 days ago · 5 km deep · 88 km away
  18. 2.040 km E of Ruth, California · 13161 days ago · 14 km deep · 35 km away
  19. 3.66 km WNW of Covelo, California · 13160 days ago · 4 km deep · 51 km away
  20. 2.06 km W of Covelo, California · 13160 days ago · 2 km deep · 52 km away
  21. 1.55 km W of Covelo, California · 13160 days ago · 1 km deep · 52 km away
  22. 1.66 km W of Covelo, California · 13160 days ago · 1 km deep · 52 km away
  23. 1.64 km NNW of Laytonville, California · 13160 days ago · 9 km deep · 63 km away
  24. 2.96 km ESE of Hyampom, California · 13160 days ago · 21 km deep · 38 km away
  25. 4.11 km ENE of Humboldt Hill, California · 13159 days ago · 15 km deep · 93 km away
  26. 1.64 km N of Millville, California · 13158 days ago · 16 km deep · 98 km away
  27. 2.53 km NE of Myers Flat, California · 13157 days ago · 28 km deep · 49 km away
  28. 1.913 km SE of Covelo, California · 13156 days ago · 0 km deep · 62 km away
  29. 1.832 km WSW of Cottonwood, California · 13154 days ago · 8 km deep · 54 km away
  30. 1.81 km SW of Ferndale, California · 13154 days ago · 4 km deep · 93 km away
  31. 2.022 km NE of Potter Valley, California · 13152 days ago · 6 km deep · 91 km away
  32. 2.16 km W of Laytonville, California · 13151 days ago · 3 km deep · 69 km away
  33. 2.03 km ESE of Benbow, California · 13151 days ago · 16 km deep · 47 km away
  34. 1.5Northern California · 13150 days ago · 20 km deep · 92 km away
  35. 2.132 km NW of Rancho Tehama Reserve, California · 13149 days ago · 15 km deep · 50 km away
  36. 1.55 km W of Covelo, California · 13148 days ago · 4 km deep · 51 km away
  37. 2.17 km SSE of Redding, California · 13147 days ago · 33 km deep · 82 km away
  38. 1.812 km N of Brooktrails, California · 13146 days ago · 10 km deep · 79 km away
  39. 2.312 km N of Brooktrails, California · 13145 days ago · 9 km deep · 79 km away
  40. 2.616 km N of Ruth, California · 13144 days ago · 29 km deep · 18 km away
  41. 1.512 km N of Brooktrails, California · 13144 days ago · 8 km deep · 79 km away
  42. 2.75 km SE of Red Bluff, California · 13142 days ago · 25 km deep · 91 km away
  43. 1.812 km NE of Cleone, California · 13139 days ago · 4 km deep · 85 km away
  44. 1.96 km ENE of Redding, California · 13138 days ago · 17 km deep · 87 km away
  45. 1.68 km ENE of Brooktrails, California · 13137 days ago · 4 km deep · 87 km away
  46. 1.66 km NE of Redding, California · 13135 days ago · 4 km deep · 87 km away
  47. 2.42 km NNW of Redding, California · 13135 days ago · 17 km deep · 82 km away
  48. 2.515 km SW of Scotia, California · 13134 days ago · 30 km deep · 81 km away
  49. 2.018 km WNW of Rancho Tehama Reserve, California · 13133 days ago · 17 km deep · 59 km away
  50. 1.510 km NNW of Rancho Tehama Reserve, California · 13132 days ago · 21 km deep · 69 km away
  51. 1.99 km SSW of Junction City, California · 13131 days ago · 13 km deep · 45 km away
  52. 2.810 km SSW of Ferndale, California · 13131 days ago · 22 km deep · 91 km away
  53. 2.119 km NW of Shelter Cove, California · 13128 days ago · 8 km deep · 81 km away
  54. 2.024 km NE of Potter Valley, California · 13123 days ago · 9 km deep · 89 km away
  55. 3.528 km SSW of Ferndale, California · 13123 days ago · 18 km deep · 100 km away
  56. 1.632 km SSW of Ferndale, California · 13121 days ago · 5 km deep · 99 km away
  57. 1.95 km W of Laytonville, California · 13121 days ago · 2 km deep · 68 km away
  58. 1.624 km SSW of Scotia, California · 13120 days ago · 18 km deep · 84 km away
  59. 2.424 km SSW of Ferndale, California · 13120 days ago · 16 km deep · 94 km away

Before

  1. 1.910 km WSW of Hyampom, California · 13179 days ago · -1 km deep · 46 km away
  2. 2.19 km ESE of Willits, California · 13179 days ago · 1 km deep · 100 km away
  3. 1.63 km SW of Ferndale, California · 13179 days ago · 12 km deep · 93 km away
  4. 1.60 km NNE of Fortuna, California · 13180 days ago · -1 km deep · 85 km away
  5. 3.019 km SW of Scotia, California · 13180 days ago · 29 km deep · 88 km away
  6. 1.93 km ENE of Ferndale, California · 13181 days ago · 4 km deep · 90 km away
  7. 2.16 km SE of Pine Hills, California · 13181 days ago · 14 km deep · 85 km away
  8. 1.8near the coast of Northern California · 13183 days ago · -1 km deep · 69 km away
  9. 1.915 km SE of Laytonville, California · 13185 days ago · 7 km deep · 77 km away
  10. 2.017 km N of Laytonville, California · 13185 days ago · 5 km deep · 51 km away
  11. 1.74 km NW of Redway, California · 13187 days ago · 17 km deep · 52 km away
  12. 1.96 km WNW of Loleta, California · 13187 days ago · 4 km deep · 98 km away
  13. 1.913 km SE of Laytonville, California · 13187 days ago · 1 km deep · 76 km away
  14. 1.611 km SSE of Millville, California · 13190 days ago · 19 km deep · 99 km away
  15. 2.424 km NE of Potter Valley, California · 13191 days ago · 9 km deep · 89 km away
  16. 2.623 km NE of Potter Valley, California · 13191 days ago · 9 km deep · 89 km away
  17. 1.819 km SSW of Ferndale, California · 13193 days ago · 15 km deep · 97 km away
  18. 2.32 km N of Bend, California · 13193 days ago · 34 km deep · 89 km away
  19. 2.410 km W of Rio Dell, California · 13194 days ago · 19 km deep · 86 km away
  20. 1.54 km W of Laytonville, California · 13195 days ago · 5 km deep · 68 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc163760. Read Sun, Oct 4, 2026, 3:27 PM UTC.