California earthquakes

M1.9 earthquake 16 km N of Upper Lake, California

A magnitude 1.9 earthquake struck 16 km N of Upper Lake, California on Wed, Nov 21, 1990, 3:28 PM PST (23:28 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.8 5 km SW 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
1.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1990-11-21 23:28:54 UTC
Depth
6.4 km (4.0 mi), shallow
Epicenter
39.317° N, 122.897° 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 0.2 km horizontally, 1.5 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
99°
Stations used
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 177 in the 60 days after this one and 82 in the 30 days before it.

After

  1. 1.7near the coast of Northern California · 13100 days ago · 0 km deep · 99 km away
  2. 1.57 km W of Cobb, California · 13099 days ago · 3 km deep · 57 km away
  3. 2.04 km WSW of Cobb, California · 13099 days ago · 1 km deep · 58 km away
  4. 1.74 km NNE of Brooktrails, California · 13099 days ago · 4 km deep · 44 km away
  5. 2.06 km W of Cobb, California · 13098 days ago · 2 km deep · 57 km away
  6. 1.85 km SSW of Cobb, California · 13098 days ago · 1 km deep · 62 km away
  7. 2.26 km WSW of Cobb, California · 13098 days ago · 1 km deep · 57 km away
  8. 1.712 km SE of Leggett, California · 13098 days ago · 6 km deep · 80 km away
  9. 2.05 km WSW of Cobb, California · 13098 days ago · 0 km deep · 58 km away
  10. 1.85 km SSW of Cobb, California · 13098 days ago · 0 km deep · 61 km away
  11. 2.19 km W of Cobb, California · 13098 days ago · 1 km deep · 55 km away
  12. 1.96 km S of Cobb, California · 13097 days ago · 1 km deep · 63 km away
  13. 1.57 km ESE of Willits, California · 13097 days ago · 7 km deep · 33 km away
  14. 2.513 km W of Cobb, California · 13097 days ago · 2 km deep · 53 km away
  15. 2.05 km WSW of Cobb, California · 13096 days ago · -1 km deep · 59 km away
  16. 1.67 km W of Cobb, California · 13096 days ago · 3 km deep · 56 km away
  17. 3.1Northern California · 13096 days ago · 1 km deep · 60 km away
  18. 1.510 km W of Cobb, California · 13095 days ago · 1 km deep · 56 km away
  19. 1.612 km SSE of Laytonville, California · 13095 days ago · 4 km deep · 55 km away
  20. 1.74 km WSW of Cobb, California · 13095 days ago · 1 km deep · 58 km away
  21. 1.66 km WSW of Cobb, California · 13094 days ago · 3 km deep · 57 km away
  22. 1.64 km SW of Cobb, California · 13094 days ago · -1 km deep · 60 km away
  23. 1.53 km SSW of Cobb, California · 13093 days ago · 0 km deep · 59 km away
  24. 1.87 km ENE of Hopland, California · 13093 days ago · 6 km deep · 38 km away
  25. 1.616 km N of Upper Lake, California · 13093 days ago · 7 km deep · 0 km away
  26. 1.88 km W of Cobb, California · 13093 days ago · -1 km deep · 55 km away
  27. 1.68 km W of Cobb, California · 13093 days ago · 0 km deep · 55 km away
  28. 2.18 km W of Cobb, California · 13093 days ago · 1 km deep · 55 km away
  29. 2.28 km W of Cobb, California · 13093 days ago · 0 km deep · 55 km away
  30. 1.68 km NNE of Potter Valley, California · 13092 days ago · 1 km deep · 17 km away
  31. 1.610 km W of Redwood Valley, California · 13092 days ago · 3 km deep · 37 km away
  32. 1.55 km WSW of Cobb, California · 13092 days ago · 0 km deep · 59 km away
  33. 2.05 km W of Cobb, California · 13091 days ago · 0 km deep · 56 km away
  34. 1.73 km SSW of Cobb, California · 13090 days ago · 1 km deep · 60 km away
  35. 2.36 km WSW of Durham, California · 13089 days ago · 29 km deep · 95 km away
  36. 1.55 km WSW of Cobb, California · 13089 days ago · 4 km deep · 58 km away
  37. 1.75 km WSW of Cobb, California · 13089 days ago · 2 km deep · 59 km away
  38. 1.69 km W of Cobb, California · 13089 days ago · 1 km deep · 54 km away
  39. 1.98 km W of Cobb, California · 13088 days ago · 0 km deep · 56 km away
  40. 1.54 km SW of Cobb, California · 13088 days ago · 1 km deep · 60 km away
  41. 2.28 km W of Cobb, California · 13086 days ago · 1 km deep · 56 km away
  42. 1.65 km SW of Cobb, California · 13086 days ago · -1 km deep · 60 km away
  43. 1.67 km WSW of Cobb, California · 13085 days ago · 1 km deep · 58 km away
  44. 1.86 km WNW of Cobb, California · 13085 days ago · 1 km deep · 54 km away
  45. 1.84 km W of Cobb, California · 13085 days ago · 2 km deep · 57 km away
  46. 1.99 km W of Cobb, California · 13084 days ago · 0 km deep · 55 km away
  47. 1.89 km W of Cobb, California · 13084 days ago · 1 km deep · 54 km away
  48. 2.38 km W of Cobb, California · 13083 days ago · 1 km deep · 54 km away
  49. 2.58 km W of Cobb, California · 13083 days ago · 0 km deep · 54 km away
  50. 2.18 km W of Cobb, California · 13083 days ago · 0 km deep · 54 km away
  51. 1.64 km W of Cobb, California · 13083 days ago · 2 km deep · 56 km away
  52. 1.95 km WSW of Cobb, California · 13082 days ago · -1 km deep · 58 km away
  53. 1.612 km ESE of Leggett, California · 13082 days ago · 8 km deep · 80 km away
  54. 2.37 km NNW of Princeton, California · 13081 days ago · 24 km deep · 74 km away
  55. 1.9Northern California · 13081 days ago · 0 km deep · 57 km away
  56. 1.65 km WSW of Cobb, California · 13080 days ago · 1 km deep · 58 km away
  57. 1.78 km NNE of Princeton, California · 13080 days ago · 5 km deep · 80 km away
  58. 1.59 km SE of Hopland, California · 13080 days ago · 1 km deep · 46 km away
  59. 2.09 km W of Cobb, California · 13080 days ago · 2 km deep · 54 km away
  60. 2.029 km SE of Covelo, California · 13080 days ago · 15 km deep · 34 km away

The first 60 of 177.

Before

  1. 2.47 km W of Cobb, California · 13101 days ago · 0 km deep · 57 km away
  2. 1.74 km SW of Cobb, California · 13101 days ago · -1 km deep · 60 km away
  3. 2.111 km SSE of Boonville, California · 13101 days ago · 4 km deep · 59 km away
  4. 1.64 km WSW of Cobb, California · 13102 days ago · 1 km deep · 57 km away
  5. 1.88 km NNE of Comptche, California · 13102 days ago · 6 km deep · 58 km away
  6. 1.56 km WSW of Cobb, California · 13102 days ago · 0 km deep · 59 km away
  7. 1.98 km WSW of Cobb, California · 13103 days ago · 4 km deep · 58 km away
  8. 2.33 km WNW of Cobb, California · 13103 days ago · 1 km deep · 56 km away
  9. 2.23 km W of Cobb, California · 13103 days ago · 0 km deep · 56 km away
  10. 2.04 km SW of Cobb, California · 13104 days ago · 1 km deep · 60 km away
  11. 2.08 km WSW of Cobb, California · 13104 days ago · 1 km deep · 58 km away
  12. 1.95 km WNW of Cobb, California · 13104 days ago · 1 km deep · 55 km away
  13. 2.05 km WSW of Cobb, California · 13104 days ago · 0 km deep · 59 km away
  14. 1.68 km E of Hidden Valley Lake, California · 13105 days ago · 6 km deep · 68 km away
  15. 1.824 km NE of Potter Valley, California · 13105 days ago · 10 km deep · 21 km away
  16. 1.67 km WSW of Cobb, California · 13106 days ago · 3 km deep · 58 km away
  17. 2.83 km W of Roseland, California · 13106 days ago · 6 km deep · 99 km away
  18. 2.27 km NW of Cobb, California · 13107 days ago · 1 km deep · 52 km away
  19. 1.79 km W of Cobb, California · 13107 days ago · 1 km deep · 55 km away
  20. 1.67 km W of Cobb, California · 13108 days ago · 3 km deep · 56 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc200639. Read Sun, Oct 4, 2026, 10:55 AM UTC.