California earthquakes

M2.5 earthquake 6 km WSW of Cobb, California

A magnitude 2.5 earthquake struck 6 km WSW of Cobb, California on Sun, Feb 21, 1982, 5:54 PM PST (01:54 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M3.6 8 km W of Cobb, California. This one was a foreshock.

Cobb 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
2.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1982-02-22 01:54:58 UTC
Depth
1.1 km (0.7 mi), shallow
Epicenter
38.809° N, 122.801° 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, 0.3 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
35°
Stations used
28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 143 in the 60 days after this one and 60 in the 30 days before it.

After

  1. 1.65 km WSW of Glen Ellen, California · 16292 days ago · 7 km deep · 56 km away
  2. 1.56 km W of Cobb, California · 16292 days ago · 0 km deep · 1 km away
  3. 1.8Northern California · 16292 days ago · 5 km deep · 34 km away
  4. 2.56 km WNW of Princeton, California · 16290 days ago · 15 km deep · 93 km away
  5. 1.66 km W of Cobb, California · 16290 days ago · 0 km deep · 1 km away
  6. 1.59 km WSW of Cobb, California · 16289 days ago · 1 km deep · 3 km away
  7. 1.67 km WSW of Cobb, California · 16289 days ago · 0 km deep · 1 km away
  8. 2.35 km NW of Princeton, California · 16288 days ago · 15 km deep · 95 km away
  9. 1.517 km NNE of Lucerne, California · 16288 days ago · 7 km deep · 47 km away
  10. 2.06 km W of Cobb, California · 16287 days ago · 3 km deep · 1 km away
  11. 1.66 km W of Cobb, California · 16287 days ago · 3 km deep · 1 km away
  12. 1.54 km SE of Clear Lake Riviera, California · 16287 days ago · 2 km deep · 17 km away
  13. 1.56 km WSW of Cobb, California · 16287 days ago · 3 km deep · 1 km away
  14. 1.68 km W of Middletown, California · 16286 days ago · 0 km deep · 11 km away
  15. 1.76 km W of Cobb, California · 16286 days ago · 3 km deep · 1 km away
  16. 2.214 km N of Brooktrails, California · 16286 days ago · 7 km deep · 98 km away
  17. 2.39 km WSW of Cobb, California · 16286 days ago · 2 km deep · 2 km away
  18. 3.35 km SW of Cobb, California · 16286 days ago · 4 km deep · 4 km away
  19. 1.86 km SW of Cobb, California · 16286 days ago · 4 km deep · 3 km away
  20. 1.85 km SW of Cobb, California · 16286 days ago · 0 km deep · 3 km away
  21. 1.72 km NNE of Lakeport, California · 16286 days ago · 6 km deep · 29 km away
  22. 1.52 km SSE of North Lakeport, California · 16285 days ago · 8 km deep · 30 km away
  23. 2.06 km W of Cobb, California · 16285 days ago · 3 km deep · 0 km away
  24. 1.67 km WSW of Cobb, California · 16285 days ago · 1 km deep · 1 km away
  25. 2.49 km WSW of Cobb, California · 16284 days ago · 1 km deep · 3 km away
  26. 1.64 km WSW of Cobb, California · 16282 days ago · 1 km deep · 3 km away
  27. 1.77 km W of Cobb, California · 16282 days ago · 2 km deep · 1 km away
  28. 3.26 km W of Cobb, California · 16282 days ago · 1 km deep · 0 km away
  29. 2.511 km W of Cobb, California · 16282 days ago · 7 km deep · 4 km away
  30. 1.66 km WNW of Lodoga, California · 16282 days ago · 6 km deep · 60 km away
  31. 2.1Northern California · 16282 days ago · 2 km deep · 2 km away
  32. 1.68 km NE of Clearlake, California · 16281 days ago · 3 km deep · 30 km away
  33. 1.65 km WSW of Cobb, California · 16281 days ago · 0 km deep · 2 km away
  34. 2.54 km ESE of Clear Lake Riviera, California · 16280 days ago · 3 km deep · 18 km away
  35. 1.95 km SW of Cobb, California · 16280 days ago · -1 km deep · 3 km away
  36. 2.34 km WSW of Cobb, California · 16280 days ago · 2 km deep · 3 km away
  37. 1.74 km WSW of Cobb, California · 16280 days ago · 0 km deep · 3 km away
  38. 1.94 km WSW of Cobb, California · 16280 days ago · 1 km deep · 3 km away
  39. 1.6Northern California · 16279 days ago · 0 km deep · 1 km away
  40. 2.28 km WSW of Cobb, California · 16278 days ago · 1 km deep · 2 km away
  41. 2.89 km WSW of Cobb, California · 16278 days ago · 2 km deep · 2 km away
  42. 2.08 km WSW of Cobb, California · 16278 days ago · 1 km deep · 2 km away
  43. 1.68 km W of Cobb, California · 16278 days ago · 2 km deep · 1 km away
  44. 1.86 km WSW of Cobb, California · 16276 days ago · 0 km deep · 1 km away
  45. 1.613 km ENE of Clearlake Oaks, California · 16275 days ago · -1 km deep · 39 km away
  46. 1.716 km NE of Upper Lake, California · 16274 days ago · 0 km deep · 52 km away
  47. 1.822 km SSE of Covelo, California · 16274 days ago · 3 km deep · 95 km away
  48. 1.64 km W of Redwood Valley, California · 16273 days ago · 2 km deep · 64 km away
  49. 2.017 km NNE of Nice, California · 16272 days ago · 1 km deep · 50 km away
  50. 1.96 km WSW of Cobb, California · 16272 days ago · 3 km deep · 0 km away
  51. 1.76 km WSW of Cobb, California · 16271 days ago · -1 km deep · 1 km away
  52. 1.57 km WSW of Cobb, California · 16271 days ago · 2 km deep · 0 km away
  53. 1.84 km E of Calpella, California · 16271 days ago · 4 km deep · 56 km away
  54. 2.16 km WSW of Cobb, California · 16271 days ago · 0 km deep · 1 km away
  55. 2.824 km SE of Covelo, California · 16270 days ago · 12 km deep · 93 km away
  56. 2.36 km ENE of Santa Rosa, California · 16270 days ago · 6 km deep · 40 km away
  57. 3.225 km SE of Covelo, California · 16270 days ago · 13 km deep · 92 km away
  58. 3.124 km SE of Covelo, California · 16270 days ago · 12 km deep · 92 km away
  59. 1.87 km W of Cobb, California · 16270 days ago · 2 km deep · 1 km away
  60. 1.826 km SE of Covelo, California · 16270 days ago · 14 km deep · 91 km away

The first 60 of 143.

Before

  1. 2.47 km WSW of Cobb, California · 16293 days ago · 0 km deep · 1 km away
  2. 1.81 km SE of Occidental, California · 16294 days ago · 6 km deep · 47 km away
  3. 2.05 km N of Windsor, California · 16295 days ago · 7 km deep · 24 km away
  4. 1.95 km S of Calistoga, California · 16295 days ago · 2 km deep · 36 km away
  5. 1.74 km WSW of Cobb, California · 16296 days ago · 1 km deep · 3 km away
  6. 1.65 km SE of Santa Rosa, California · 16296 days ago · 8 km deep · 46 km away
  7. 1.56 km W of Cobb, California · 16297 days ago · 3 km deep · 1 km away
  8. 2.519 km NNE of Upper Lake, California · 16298 days ago · 3 km deep · 58 km away
  9. 2.08 km ENE of Potter Valley, California · 16298 days ago · 10 km deep · 63 km away
  10. 2.28 km WSW of Cobb, California · 16299 days ago · 3 km deep · 2 km away
  11. 3.17 km WSW of Cobb, California · 16299 days ago · 3 km deep · 1 km away
  12. 2.118 km E of Potter Valley, California · 16299 days ago · 5 km deep · 59 km away
  13. 2.48 km W of Cobb, California · 16299 days ago · 1 km deep · 3 km away
  14. 2.58 km WSW of Cobb, California · 16300 days ago · 2 km deep · 2 km away
  15. 1.79 km W of Redwood Valley, California · 16300 days ago · 2 km deep · 67 km away
  16. 2.49 km WSW of Cobb, California · 16300 days ago · 2 km deep · 2 km away
  17. 1.87 km WSW of Cobb, California · 16301 days ago · 1 km deep · 1 km away
  18. 1.67 km WSW of Cobb, California · 16301 days ago · 1 km deep · 1 km away
  19. 1.68 km WSW of Cobb, California · 16302 days ago · 1 km deep · 2 km away
  20. 1.79 km WSW of Cobb, California · 16302 days ago · 2 km deep · 2 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1072354. Read Thu, Oct 1, 2026, 9:43 AM UTC.