California earthquakes

M1.8 earthquake 9 km WSW of Ukiah, California

A magnitude 1.8 earthquake struck 9 km WSW of Ukiah, California on Tue, Jun 11, 1985, 9:25 AM PDT (16:25 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M4.3 12 km WSW of Kelseyville, California. This one was a foreshock.

Ukiah 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
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1985-06-11 16:25:20 UTC
Depth
4.2 km (2.6 mi), shallow
Epicenter
39.129° N, 123.316° 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 4.7 km horizontally, 24.6 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
219°, poorly surrounded by stations
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 158 in the 60 days after this one and 107 in the 30 days before it.

After

  1. 1.65 km W of Cobb, California · 15089 days ago · 1 km deep · 58 km away
  2. 1.66 km W of Cobb, California · 15089 days ago · 2 km deep · 57 km away
  3. 1.67 km NNE of Hopland, California · 15089 days ago · 0 km deep · 23 km away
  4. 3.16 km W of Cobb, California · 15088 days ago · 1 km deep · 57 km away
  5. 1.56 km W of Cobb, California · 15088 days ago · 1 km deep · 57 km away
  6. 1.68 km SW of Clear Lake Riviera, California · 15087 days ago · 2 km deep · 53 km away
  7. 1.99 km W of Redwood Valley, California · 15087 days ago · 7 km deep · 16 km away
  8. 1.87 km W of Cobb, California · 15086 days ago · 1 km deep · 56 km away
  9. 1.67 km W of Cobb, California · 15086 days ago · 1 km deep · 56 km away
  10. 2.46 km W of Cobb, California · 15086 days ago · 3 km deep · 56 km away
  11. 1.66 km W of Cobb, California · 15085 days ago · 3 km deep · 57 km away
  12. 1.612 km ENE of Healdsburg, California · 15085 days ago · 4 km deep · 73 km away
  13. 1.511 km E of Hidden Valley Lake, California · 15085 days ago · 8 km deep · 84 km away
  14. 1.88 km WSW of Cobb, California · 15084 days ago · 3 km deep · 57 km away
  15. 1.89 km WSW of Cobb, California · 15084 days ago · 2 km deep · 57 km away
  16. 2.19 km ENE of Brooktrails, California · 15084 days ago · 10 km deep · 40 km away
  17. 1.77 km W of Cobb, California · 15083 days ago · 0 km deep · 55 km away
  18. 1.57 km W of Cobb, California · 15083 days ago · 1 km deep · 55 km away
  19. 2.76 km W of Cobb, California · 15083 days ago · 3 km deep · 56 km away
  20. 1.67 km W of Cobb, California · 15082 days ago · 1 km deep · 55 km away
  21. 1.63 km SW of Cobb, California · 15081 days ago · 1 km deep · 62 km away
  22. 2.510 km WSW of Cobb, California · 15081 days ago · 2 km deep · 55 km away
  23. 2.87 km W of Cobb, California · 15081 days ago · 4 km deep · 56 km away
  24. 1.66 km W of Cobb, California · 15080 days ago · 0 km deep · 56 km away
  25. 1.76 km SW of Cobb, California · 15080 days ago · 4 km deep · 60 km away
  26. 2.96 km W of Cobb, California · 15080 days ago · 1 km deep · 56 km away
  27. 1.75 km WSW of Cobb, California · 15080 days ago · 2 km deep · 59 km away
  28. 2.613 km ENE of Cloverdale, California · 15079 days ago · 4 km deep · 50 km away
  29. 1.97 km W of Cobb, California · 15079 days ago · 1 km deep · 55 km away
  30. 2.617 km N of Upper Lake, California · 15079 days ago · 11 km deep · 43 km away
  31. 1.97 km W of Cobb, California · 15078 days ago · 3 km deep · 56 km away
  32. 1.64 km W of Cobb, California · 15078 days ago · 1 km deep · 58 km away
  33. 2.67 km W of Cobb, California · 15078 days ago · 3 km deep · 56 km away
  34. 2.47 km W of Cobb, California · 15078 days ago · 3 km deep · 56 km away
  35. 2.06 km SW of Cobb, California · 15077 days ago · 1 km deep · 61 km away
  36. 1.72 km W of Santa Rosa, California · 15077 days ago · 6 km deep · 91 km away
  37. 2.18 km WSW of Cobb, California · 15077 days ago · 4 km deep · 57 km away
  38. 1.94 km SW of Cobb, California · 15077 days ago · 0 km deep · 61 km away
  39. 1.76 km SSW of Calistoga, California · 15076 days ago · 5 km deep · 91 km away
  40. 1.75 km SSW of Cobb, California · 15076 days ago · -1 km deep · 62 km away
  41. 2.210 km NNW of Stonyford, California · 15075 days ago · 7 km deep · 74 km away
  42. 1.87 km W of Cobb, California · 15074 days ago · 3 km deep · 56 km away
  43. 2.310 km NNW of Stonyford, California · 15074 days ago · 4 km deep · 73 km away
  44. 2.25 km E of Calpella, California · 15074 days ago · 7 km deep · 19 km away
  45. 1.66 km E of Calpella, California · 15073 days ago · 4 km deep · 19 km away
  46. 1.96 km WSW of Cobb, California · 15073 days ago · 3 km deep · 58 km away
  47. 2.04 km WSW of Cobb, California · 15072 days ago · 1 km deep · 59 km away
  48. 2.06 km W of Cobb, California · 15071 days ago · 3 km deep · 56 km away
  49. 1.66 km W of Cobb, California · 15070 days ago · 3 km deep · 56 km away
  50. 1.86 km W of Cobb, California · 15070 days ago · 0 km deep · 56 km away
  51. 2.06 km W of Cobb, California · 15069 days ago · 2 km deep · 57 km away
  52. 1.96 km W of Cobb, California · 15069 days ago · 2 km deep · 57 km away
  53. 2.47 km WSW of Cobb, California · 15069 days ago · 1 km deep · 58 km away
  54. 2.34 km WSW of Laytonville, California · 15068 days ago · 0 km deep · 63 km away
  55. 1.612 km E of Cloverdale, California · 15068 days ago · 5 km deep · 51 km away
  56. 1.84 km WSW of Cobb, California · 15068 days ago · 1 km deep · 60 km away
  57. 1.66 km W of Cobb, California · 15068 days ago · 3 km deep · 57 km away
  58. 4.312 km WSW of Kelseyville, California · 15068 days ago · 4 km deep · 37 km away
  59. 1.77 km WSW of Cobb, California · 15067 days ago · 2 km deep · 57 km away
  60. 1.87 km SSE of Laytonville, California · 15066 days ago · 7 km deep · 57 km away

The first 60 of 158.

Before

  1. 1.67 km WSW of Cobb, California · 15090 days ago · 1 km deep · 57 km away
  2. 1.75 km SW of Cobb, California · 15090 days ago · 1 km deep · 60 km away
  3. 1.85 km SW of Cobb, California · 15091 days ago · 0 km deep · 61 km away
  4. 1.56 km W of Cobb, California · 15092 days ago · 3 km deep · 56 km away
  5. 1.98 km W of Cobb, California · 15093 days ago · 0 km deep · 54 km away
  6. 1.66 km W of Cobb, California · 15093 days ago · 0 km deep · 56 km away
  7. 1.66 km W of Cobb, California · 15093 days ago · 2 km deep · 57 km away
  8. 2.26 km W of Cobb, California · 15093 days ago · 2 km deep · 57 km away
  9. 1.79 km NW of Cobb, California · 15094 days ago · 1 km deep · 52 km away
  10. 1.68 km WSW of Cobb, California · 15094 days ago · 3 km deep · 57 km away
  11. 1.75 km WSW of Cobb, California · 15095 days ago · 0 km deep · 59 km away
  12. 1.76 km W of Cobb, California · 15095 days ago · 3 km deep · 56 km away
  13. 2.014 km N of Upper Lake, California · 15095 days ago · -1 km deep · 38 km away
  14. 1.8near the coast of Northern California · 15095 days ago · 4 km deep · 19 km away
  15. 1.66 km WSW of Cobb, California · 15095 days ago · 1 km deep · 57 km away
  16. 2.24 km SW of Cobb, California · 15096 days ago · 1 km deep · 62 km away
  17. 1.89 km S of Hopland, California · 15096 days ago · 5 km deep · 31 km away
  18. 1.65 km SW of Cobb, California · 15096 days ago · 1 km deep · 62 km away
  19. 1.722 km NE of Potter Valley, California · 15096 days ago · 7 km deep · 50 km away
  20. 1.66 km W of Cobb, California · 15097 days ago · 4 km deep · 56 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1128866. Read Sat, Oct 3, 2026, 10:40 PM UTC.