California earthquakes

M1.6 earthquake 9 km NNE of Nice, California

A magnitude 1.6 earthquake struck 9 km NNE of Nice, California on Wed, Mar 28, 1990, 3:55 PM PST (23:55 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M3.6 6 km W 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
1.6 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1990-03-28 23:55:08 UTC
Depth
8.9 km (5.5 mi), shallow
Epicenter
39.203° N, 122.813° 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 3.1 km horizontally, 2.9 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
255°, poorly surrounded by stations
Stations used
4

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 178 in the 60 days after this one and 109 in the 30 days before it.

After

  1. 3.06 km W of Cobb, California · 13339 days ago · 2 km deep · 43 km away
  2. 2.0Northern California · 13339 days ago · 3 km deep · 42 km away
  3. 1.619 km ENE of Potter Valley, California · 13338 days ago · 5 km deep · 20 km away
  4. 2.06 km W of Cobb, California · 13338 days ago · 4 km deep · 42 km away
  5. 1.77 km W of Cobb, California · 13338 days ago · 4 km deep · 43 km away
  6. 3.018 km ENE of Angwin, California · 13337 days ago · 0 km deep · 78 km away
  7. 2.04 km WSW of Cobb, California · 13336 days ago · 1 km deep · 43 km away
  8. 2.08 km W of Cobb, California · 13336 days ago · -1 km deep · 42 km away
  9. 1.67 km WSW of Cobb, California · 13336 days ago · 1 km deep · 44 km away
  10. 2.23 km SSW of Cobb, California · 13336 days ago · 1 km deep · 46 km away
  11. 2.06 km W of Cobb, California · 13335 days ago · 0 km deep · 41 km away
  12. 1.88 km S of Leggett, California · 13335 days ago · 3 km deep · 100 km away
  13. 2.315 km NNE of Princeton, California · 13334 days ago · 16 km deep · 83 km away
  14. 2.618 km ENE of Potter Valley, California · 13334 days ago · 7 km deep · 20 km away
  15. 1.86 km WSW of Cobb, California · 13333 days ago · 1 km deep · 44 km away
  16. 2.56 km W of Cobb, California · 13333 days ago · 1 km deep · 42 km away
  17. 3.66 km W of Cobb, California · 13333 days ago · 1 km deep · 42 km away
  18. 2.75 km W of Cobb, California · 13333 days ago · -1 km deep · 43 km away
  19. 2.19 km W of Cobb, California · 13333 days ago · 1 km deep · 42 km away
  20. 2.15 km SW of Cobb, California · 13333 days ago · 2 km deep · 46 km away
  21. 1.75 km SSW of Cobb, California · 13333 days ago · 1 km deep · 48 km away
  22. 1.65 km SSW of Cobb, California · 13333 days ago · -1 km deep · 48 km away
  23. 2.18 km ESE of Willits, California · 13332 days ago · 2 km deep · 43 km away
  24. 3.07 km WSW of Cobb, California · 13332 days ago · 1 km deep · 45 km away
  25. 1.57 km W of Cobb, California · 13332 days ago · 3 km deep · 43 km away
  26. 1.69 km NW of Cobb, California · 13331 days ago · 1 km deep · 36 km away
  27. 1.85 km WSW of Cobb, California · 13331 days ago · 2 km deep · 43 km away
  28. 2.15 km SE of Hopland, California · 13331 days ago · 4 km deep · 37 km away
  29. 2.08 km W of Cobb, California · 13330 days ago · 3 km deep · 41 km away
  30. 2.24 km WSW of Cobb, California · 13329 days ago · 3 km deep · 44 km away
  31. 1.65 km SW of Cobb, California · 13329 days ago · 0 km deep · 47 km away
  32. 2.316 km N of Princeton, California · 13328 days ago · 23 km deep · 80 km away
  33. 1.93 km S of Cobb, California · 13328 days ago · 2 km deep · 47 km away
  34. 1.710 km NE of Clearlake, California · 13328 days ago · -1 km deep · 30 km away
  35. 1.66 km SW of Cobb, California · 13328 days ago · 0 km deep · 46 km away
  36. 1.710 km W of Cobb, California · 13327 days ago · 0 km deep · 43 km away
  37. 2.24 km SW of Cobb, California · 13327 days ago · 1 km deep · 46 km away
  38. 1.59 km W of Cobb, California · 13327 days ago · 1 km deep · 42 km away
  39. 1.62 km NE of Santa Rosa, California · 13327 days ago · 8 km deep · 83 km away
  40. 2.23 km NNE of Talmage, California · 13327 days ago · 6 km deep · 29 km away
  41. 1.65 km WSW of Cobb, California · 13327 days ago · 1 km deep · 44 km away
  42. 1.67 km W of Cobb, California · 13327 days ago · 3 km deep · 43 km away
  43. 2.3near the coast of Northern California · 13326 days ago · 2 km deep · 47 km away
  44. 1.86 km SW of Cobb, California · 13325 days ago · 3 km deep · 46 km away
  45. 1.66 km W of Cobb, California · 13324 days ago · 3 km deep · 42 km away
  46. 1.64 km ESE of Roseland, California · 13324 days ago · 7 km deep · 90 km away
  47. 1.79 km W of Cobb, California · 13324 days ago · 0 km deep · 43 km away
  48. 1.86 km WSW of Cobb, California · 13323 days ago · -1 km deep · 45 km away
  49. 2.0Northern California · 13322 days ago · 1 km deep · 44 km away
  50. 2.311 km E of Artois, California · 13322 days ago · 13 km deep · 79 km away
  51. 1.66 km W of Cobb, California · 13322 days ago · 1 km deep · 43 km away
  52. 2.210 km NNE of Larkfield-Wikiup, California · 13322 days ago · 3 km deep · 68 km away
  53. 3.14 km WSW of Cobb, California · 13321 days ago · 1 km deep · 45 km away
  54. 1.65 km WSW of Cobb, California · 13321 days ago · 1 km deep · 44 km away
  55. 1.95 km WSW of Cobb, California · 13319 days ago · 1 km deep · 44 km away
  56. 1.85 km WSW of Cobb, California · 13319 days ago · 1 km deep · 44 km away
  57. 2.25 km SSW of Cobb, California · 13319 days ago · 1 km deep · 48 km away
  58. 1.95 km SW of Cobb, California · 13319 days ago · 1 km deep · 46 km away
  59. 1.69 km WNW of Cobb, California · 13319 days ago · 2 km deep · 40 km away
  60. 1.69 km W of Cobb, California · 13318 days ago · 2 km deep · 41 km away

The first 60 of 178.

Before

  1. 2.018 km ENE of Sea Ranch, California · 13339 days ago · 4 km deep · 59 km away
  2. 2.55 km WSW of Cobb, California · 13340 days ago · 0 km deep · 44 km away
  3. 1.85 km W of Cobb, California · 13340 days ago · 1 km deep · 42 km away
  4. 1.57 km WSW of Cobb, California · 13340 days ago · 3 km deep · 44 km away
  5. 1.717 km W of Laytonville, California · 13341 days ago · 1 km deep · 92 km away
  6. 2.25 km SW of Cobb, California · 13341 days ago · 2 km deep · 46 km away
  7. 2.08 km WNW of Cobb, California · 13341 days ago · 0 km deep · 41 km away
  8. 1.65 km SW of Cobb, California · 13341 days ago · 2 km deep · 46 km away
  9. 1.56 km E of Calpella, California · 13342 days ago · 2 km deep · 28 km away
  10. 3.27 km WSW of Cobb, California · 13342 days ago · 0 km deep · 45 km away
  11. 1.614 km E of Angwin, California · 13343 days ago · -1 km deep · 84 km away
  12. 2.117 km NE of Nice, California · 13343 days ago · 9 km deep · 10 km away
  13. 2.717 km NE of Nice, California · 13343 days ago · 10 km deep · 10 km away
  14. 1.93 km WSW of Forestville, California · 13344 days ago · 0 km deep · 82 km away
  15. 2.27 km W of Cobb, California · 13344 days ago · 1 km deep · 43 km away
  16. 1.58 km ENE of Healdsburg, California · 13344 days ago · 6 km deep · 63 km away
  17. 1.76 km SW of Cobb, California · 13344 days ago · 0 km deep · 47 km away
  18. 1.65 km N of Windsor, California · 13345 days ago · -1 km deep · 67 km away
  19. 1.75 km SW of Cobb, California · 13345 days ago · 2 km deep · 46 km away
  20. 2.07 km WSW of Cobb, California · 13345 days ago · 0 km deep · 45 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1174454. Read Sun, Oct 4, 2026, 3:20 PM UTC.