California earthquakes

M1.8 earthquake 4 km SW of Albion, California

A magnitude 1.8 earthquake struck 4 km SW of Albion, California on Mon, May 20, 1985, 8:50 AM PDT (15:50 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M2.3 7 km WSW of Cobb, 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
1.8 (md), micro
Local time
UTC
1985-05-20 15:50:51 UTC
Depth
0.7 km (0.4 mi), shallow
Epicenter
39.193° N, 123.810° 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 3.6 km horizontally, 6.2 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
309°, 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: 140 in the 60 days after this one and 59 in the 30 days before it.

After

  1. 1.57 km W of Cobb, California · 15100 days ago · 4 km deep · 96 km away
  2. 1.66 km W of Cobb, California · 15100 days ago · 2 km deep · 97 km away
  3. 2.37 km WSW of Cobb, California · 15100 days ago · 4 km deep · 97 km away
  4. 1.69 km NE of Hopland, California · 15100 days ago · 6 km deep · 68 km away
  5. 1.84 km W of Cobb, California · 15099 days ago · 0 km deep · 98 km away
  6. 1.95 km W of Cobb, California · 15099 days ago · 1 km deep · 97 km away
  7. 2.37 km W of Cobb, California · 15099 days ago · 0 km deep · 95 km away
  8. 1.99 km W of Cobb, California · 15099 days ago · 0 km deep · 93 km away
  9. 1.67 km W of Cobb, California · 15098 days ago · 3 km deep · 96 km away
  10. 3.07 km WSW of Cobb, California · 15097 days ago · 4 km deep · 97 km away
  11. 2.06 km W of Cobb, California · 15097 days ago · 3 km deep · 97 km away
  12. 2.16 km W of Cobb, California · 15097 days ago · 4 km deep · 97 km away
  13. 2.16 km SW of Laytonville, California · 15096 days ago · 6 km deep · 56 km away
  14. 2.46 km SW of Laytonville, California · 15096 days ago · 6 km deep · 56 km away
  15. 1.66 km W of Cobb, California · 15096 days ago · 3 km deep · 97 km away
  16. 1.88 km WSW of Cobb, California · 15096 days ago · 1 km deep · 96 km away
  17. 2.614 km N of Upper Lake, California · 15096 days ago · 9 km deep · 77 km away
  18. 1.913 km N of Upper Lake, California · 15096 days ago · 8 km deep · 78 km away
  19. 2.26 km W of Cobb, California · 15094 days ago · 3 km deep · 97 km away
  20. 2.16 km W of Cobb, California · 15094 days ago · 3 km deep · 97 km away
  21. 2.46 km W of Cobb, California · 15094 days ago · 3 km deep · 97 km away
  22. 1.57 km WSW of Cobb, California · 15094 days ago · 2 km deep · 97 km away
  23. 1.57 km W of Cobb, California · 15094 days ago · 3 km deep · 96 km away
  24. 2.08 km N of Cloverdale, California · 15092 days ago · 3 km deep · 77 km away
  25. 2.67 km WSW of Cobb, California · 15092 days ago · 0 km deep · 97 km away
  26. 2.08 km WSW of Cobb, California · 15092 days ago · 0 km deep · 96 km away
  27. 1.612 km ENE of Upper Lake, California · 15091 days ago · 9 km deep · 88 km away
  28. 1.71 km NNE of Talmage, California · 15091 days ago · 4 km deep · 56 km away
  29. 1.85 km W of Cobb, California · 15091 days ago · 1 km deep · 98 km away
  30. 2.17 km W of Cobb, California · 15090 days ago · 3 km deep · 96 km away
  31. 2.6Northern California · 15090 days ago · 1 km deep · 97 km away
  32. 1.88 km W of Cobb, California · 15088 days ago · 1 km deep · 95 km away
  33. 2.48 km W of Cobb, California · 15088 days ago · 1 km deep · 95 km away
  34. 2.610 km WSW of Cobb, California · 15088 days ago · 2 km deep · 95 km away
  35. 1.87 km W of Cobb, California · 15087 days ago · 0 km deep · 96 km away
  36. 1.65km WNW of Lakeport, CA · 15087 days ago · 24 km deep · 74 km away
  37. 1.78 km W of Cobb, California · 15087 days ago · 0 km deep · 95 km away
  38. 2.210 km NNE of Hopland, California · 15086 days ago · 5 km deep · 66 km away
  39. 2.010 km NNE of Hopland, California · 15086 days ago · 5 km deep · 66 km away
  40. 2.27 km W of Cobb, California · 15086 days ago · 0 km deep · 96 km away
  41. 1.66 km W of Cobb, California · 15085 days ago · 4 km deep · 97 km away
  42. 1.722 km NE of Potter Valley, California · 15085 days ago · 7 km deep · 82 km away
  43. 1.89 km S of Hopland, California · 15085 days ago · 5 km deep · 67 km away
  44. 1.66 km WSW of Cobb, California · 15084 days ago · 1 km deep · 97 km away
  45. 1.8near the coast of Northern California · 15084 days ago · 4 km deep · 50 km away
  46. 2.014 km N of Upper Lake, California · 15084 days ago · -1 km deep · 77 km away
  47. 1.76 km W of Cobb, California · 15084 days ago · 3 km deep · 96 km away
  48. 1.75 km WSW of Cobb, California · 15083 days ago · 0 km deep · 99 km away
  49. 1.68 km WSW of Cobb, California · 15083 days ago · 3 km deep · 97 km away
  50. 1.79 km NW of Cobb, California · 15083 days ago · 1 km deep · 93 km away
  51. 2.26 km W of Cobb, California · 15082 days ago · 2 km deep · 97 km away
  52. 1.66 km W of Cobb, California · 15082 days ago · 2 km deep · 97 km away
  53. 1.66 km W of Cobb, California · 15082 days ago · 0 km deep · 96 km away
  54. 1.98 km W of Cobb, California · 15082 days ago · 0 km deep · 95 km away
  55. 1.56 km W of Cobb, California · 15081 days ago · 3 km deep · 96 km away
  56. 1.67 km WSW of Cobb, California · 15079 days ago · 1 km deep · 97 km away
  57. 1.89 km WSW of Ukiah, California · 15078 days ago · 4 km deep · 43 km away
  58. 1.65 km W of Cobb, California · 15078 days ago · 1 km deep · 98 km away
  59. 1.66 km W of Cobb, California · 15078 days ago · 2 km deep · 97 km away
  60. 1.67 km NNE of Hopland, California · 15078 days ago · 0 km deep · 65 km away

The first 60 of 140.

Before

  1. 1.95 km W of Cobb, California · 15101 days ago · 0 km deep · 98 km away
  2. 1.95 km W of Cobb, California · 15101 days ago · 0 km deep · 98 km away
  3. 2.35 km W of Cobb, California · 15101 days ago · 0 km deep · 97 km away
  4. 1.710 km WSW of Cobb, California · 15102 days ago · 1 km deep · 95 km away
  5. 2.08 km WSW of Cobb, California · 15104 days ago · 3 km deep · 97 km away
  6. 2.14 km ENE of Hopland, California · 15104 days ago · 3 km deep · 68 km away
  7. 1.67 km WSW of Cobb, California · 15104 days ago · 1 km deep · 98 km away
  8. 2.37 km WSW of Cobb, California · 15104 days ago · 4 km deep · 96 km away
  9. 1.87 km WSW of Cobb, California · 15104 days ago · 3 km deep · 97 km away
  10. 2.48 km WSW of Cobb, California · 15104 days ago · 3 km deep · 96 km away
  11. 1.59 km W of Cobb, California · 15105 days ago · 1 km deep · 94 km away
  12. 1.76 km W of Cobb, California · 15105 days ago · 3 km deep · 97 km away
  13. 2.46 km W of Cobb, California · 15105 days ago · 3 km deep · 97 km away
  14. 1.56 km NW of Cobb, California · 15105 days ago · 1 km deep · 96 km away
  15. 2.07 km WSW of Cobb, California · 15105 days ago · 2 km deep · 96 km away
  16. 1.67 km W of Cobb, California · 15106 days ago · 0 km deep · 96 km away
  17. 1.617 km NE of Upper Lake, California · 15106 days ago · 4 km deep · 90 km away
  18. 1.68 km WSW of Cobb, California · 15106 days ago · 3 km deep · 96 km away
  19. 2.67 km W of Cobb, California · 15106 days ago · 3 km deep · 96 km away
  20. 1.84 km WSW of Laytonville, California · 15107 days ago · 1 km deep · 59 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc48678. Read Tue, Sep 22, 2026, 9:39 PM UTC.