California earthquakes

M2.5 earthquake 8 km WSW of Cobb, California

A magnitude 2.5 earthquake struck 8 km WSW of Cobb, California on Fri, Feb 16, 1979, 9:39 AM PST (17:39 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M3.2 13 km WNW of Brooktrails, 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
1979-02-16 17:39:35 UTC
Depth
1.6 km (1.0 mi), shallow
Epicenter
38.808° N, 122.815° 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
±0.16
Depth from
From location
Station coverage gap
42°
Stations used
25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 75 in the 60 days after this one and 36 in the 30 days before it.

After

  1. 2.17 km W of Cobb, California · 17395 days ago · 1 km deep · 1 km away
  2. 1.77 km WSW of Cobb, California · 17393 days ago · 2 km deep · 1 km away
  3. 1.99 km NE of Hopland, California · 17389 days ago · 5 km deep · 33 km away
  4. 2.28 km W of Cobb, California · 17387 days ago · 1 km deep · 0 km away
  5. 2.313 km NNE of Brooktrails, California · 17387 days ago · 7 km deep · 96 km away
  6. 2.86 km W of Cobb, California · 17387 days ago · 3 km deep · 2 km away
  7. 1.78 km WSW of Cobb, California · 17386 days ago · 3 km deep · 1 km away
  8. 2.3Northern California · 17385 days ago · 4 km deep · 2 km away
  9. 2.07 km ENE of Brooktrails, California · 17384 days ago · 5 km deep · 84 km away
  10. 2.46 km W of Cobb, California · 17383 days ago · 4 km deep · 2 km away
  11. 1.86 km E of Woodland, California · 17382 days ago · 12 km deep · 98 km away
  12. 2.37 km W of Cobb, California · 17381 days ago · 3 km deep · 0 km away
  13. 2.06 km ESE of Willits, California · 17380 days ago · 10 km deep · 76 km away
  14. 2.32 km SSW of Monument Hills, California · 17380 days ago · 9 km deep · 82 km away
  15. 1.87 km W of Cobb, California · 17379 days ago · 0 km deep · 0 km away
  16. 2.42 km ESE of Calpella, California · 17377 days ago · 6 km deep · 56 km away
  17. 3.213 km WNW of Brooktrails, California · 17376 days ago · 22 km deep · 99 km away
  18. 2.07 km NNW of Redwood Valley, California · 17376 days ago · 7 km deep · 69 km away
  19. 2.323 km NE of Potter Valley, California · 17376 days ago · 10 km deep · 77 km away
  20. 1.86 km WSW of Cobb, California · 17375 days ago · 1 km deep · 2 km away
  21. 2.68 km WSW of Cobb, California · 17375 days ago · 3 km deep · 1 km away
  22. 2.816 km NNE of Nice, California · 17374 days ago · 7 km deep · 50 km away
  23. 2.617 km NNE of Nice, California · 17373 days ago · 4 km deep · 50 km away
  24. 1.711 km E of Lower Lake, California · 17371 days ago · 15 km deep · 32 km away
  25. 2.14 km WSW of Cobb, California · 17371 days ago · 1 km deep · 4 km away
  26. 2.38 km ENE of Lower Lake, California · 17371 days ago · 9 km deep · 30 km away
  27. 1.55 km SSE of Moskowite Corner, California · 17370 days ago · 5 km deep · 72 km away
  28. 2.315 km E of Angwin, California · 17369 days ago · 2 km deep · 53 km away
  29. 1.916 km E of Potter Valley, California · 17368 days ago · 2 km deep · 60 km away
  30. 2.04 km WSW of Cobb, California · 17368 days ago · 4 km deep · 4 km away
  31. 2.110 km NNE of Brooktrails, California · 17367 days ago · 8 km deep · 91 km away
  32. 2.17 km W of Cobb, California · 17367 days ago · 3 km deep · 1 km away
  33. 2.13 km ESE of Calpella, California · 17367 days ago · 6 km deep · 55 km away
  34. 1.813 km E of Hidden Valley Lake, California · 17365 days ago · 8 km deep · 35 km away
  35. 2.16 km WSW of Cobb, California · 17365 days ago · 1 km deep · 2 km away
  36. 2.86 km W of Cobb, California · 17365 days ago · 3 km deep · 2 km away
  37. 2.015 km NNE of Angwin, California · 17363 days ago · 11 km deep · 40 km away
  38. 1.614 km NNE of Angwin, California · 17363 days ago · 4 km deep · 39 km away
  39. 1.99 km SSE of Hopland, California · 17363 days ago · 5 km deep · 24 km away
  40. 1.74 km WSW of Cobb, California · 17363 days ago · 1 km deep · 4 km away
  41. 1.96 km N of Cloverdale, California · 17362 days ago · 6 km deep · 19 km away
  42. 2.06 km N of Cloverdale, California · 17362 days ago · 5 km deep · 18 km away
  43. 2.2Northern California · 17362 days ago · -1 km deep · 59 km away
  44. 1.916 km WSW of Guinda, California · 17361 days ago · 5 km deep · 39 km away
  45. 1.65 km ESE of Clearlake Oaks, California · 17360 days ago · 2 km deep · 29 km away
  46. 2.16 km W of Cobb, California · 17360 days ago · 4 km deep · 3 km away
  47. 1.85 km SE of Santa Rosa, California · 17359 days ago · 10 km deep · 46 km away
  48. 1.98 km NNE of Hopland, California · 17359 days ago · 2 km deep · 35 km away
  49. 1.88 km NNE of Hopland, California · 17359 days ago · 0 km deep · 36 km away
  50. 2.319 km NE of Upper Lake, California · 17359 days ago · 8 km deep · 56 km away
  51. 1.86 km ENE of Brooktrails, California · 17358 days ago · 4 km deep · 85 km away
  52. 1.70 km NNE of Larkfield-Wikiup, California · 17355 days ago · 4 km deep · 33 km away
  53. 1.58 km WSW of Cobb, California · 17355 days ago · 4 km deep · 1 km away
  54. 1.69 km E of Willits, California · 17355 days ago · 4 km deep · 76 km away
  55. 1.65 km ENE of Lucerne, California · 17354 days ago · 8 km deep · 34 km away
  56. 1.53 km ESE of Calpella, California · 17352 days ago · 5 km deep · 55 km away
  57. 1.75 km NE of Nice, California · 17351 days ago · 9 km deep · 40 km away
  58. 2.13 km ESE of Calpella, California · 17351 days ago · 6 km deep · 55 km away
  59. 2.17 km SSE of Potter Valley, California · 17351 days ago · 41 km deep · 55 km away
  60. 1.53 km ESE of Calpella, California · 17351 days ago · 6 km deep · 55 km away

The first 60 of 75.

Before

  1. 1.910 km NE of Willits, California · 17397 days ago · 3 km deep · 83 km away
  2. 2.46 km W of Cobb, California · 17397 days ago · 0 km deep · 1 km away
  3. 1.77 km ENE of Healdsburg, California · 17399 days ago · 6 km deep · 19 km away
  4. 2.923 km NE of Willits, California · 17400 days ago · 5 km deep · 85 km away
  5. 1.610 km E of Willits, California · 17401 days ago · 2 km deep · 76 km away
  6. 1.74 km WSW of Cobb, California · 17403 days ago · 1 km deep · 4 km away
  7. 1.74 km WSW of Cobb, California · 17403 days ago · 2 km deep · 4 km away
  8. 1.61 km WSW of Guinda, California · 17404 days ago · 5 km deep · 53 km away
  9. 1.97 km ENE of Hopland, California · 17404 days ago · 5 km deep · 28 km away
  10. 2.012 km NE of Brooktrails, California · 17404 days ago · 7 km deep · 91 km away
  11. 2.78 km WNW of Princeton, California · 17406 days ago · 16 km deep · 92 km away
  12. 2.410 km SE of Dunnigan, California · 17408 days ago · 9 km deep · 80 km away
  13. 2.57 km W of Cobb, California · 17409 days ago · 4 km deep · 2 km away
  14. 2.09 km S of Moskowite Corner, California · 17410 days ago · 7 km deep · 73 km away
  15. 2.07 km NE of Inverness, California · 17410 days ago · 0 km deep · 74 km away
  16. 1.52 km ENE of Clear Lake Riviera, California · 17412 days ago · 3 km deep · 20 km away
  17. 2.54 km WSW of Cobb, California · 17412 days ago · 2 km deep · 4 km away
  18. 1.67 km W of Cobb, California · 17413 days ago · -1 km deep · 1 km away
  19. 1.95 km ESE of Healdsburg, California · 17413 days ago · 6 km deep · 23 km away
  20. 2.06 km W of Cobb, California · 17414 days ago · 4 km deep · 2 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1044692. Read Sat, Oct 3, 2026, 4:41 PM UTC.