California earthquakes

M2.5 earthquake 8 km WSW of Cobb, California

A magnitude 2.5 earthquake struck 8 km WSW of Cobb, California on Wed, Mar 14, 1984, 8:53 PM PST (04:53 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.2 7 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
1984-03-15 04:53:57 UTC
Depth
2.5 km (1.6 mi), shallow
Epicenter
38.804° 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 0.3 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
82°
Stations used
20

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 169 in the 60 days after this one and 100 in the 30 days before it.

After

  1. 1.67 km WSW of Cobb, California · 15540 days ago · 1 km deep · 1 km away
  2. 1.76 km W of Cobb, California · 15539 days ago · 3 km deep · 2 km away
  3. 1.57 km W of Cobb, California · 15539 days ago · 3 km deep · 1 km away
  4. 1.77 km WSW of Cobb, California · 15539 days ago · 3 km deep · 1 km away
  5. 1.68 km ESE of Talmage, California · 15538 days ago · 8 km deep · 41 km away
  6. 1.97 km E of Willits, California · 15537 days ago · 8 km deep · 77 km away
  7. 1.80 km WNW of Green Valley, California · 15537 days ago · 10 km deep · 83 km away
  8. 1.76 km W of Cobb, California · 15537 days ago · 3 km deep · 3 km away
  9. 2.1near the coast of Northern California · 15537 days ago · 8 km deep · 86 km away
  10. 2.5Northern California · 15537 days ago · 1 km deep · 3 km away
  11. 1.67 km WSW of Cobb, California · 15536 days ago · 1 km deep · 2 km away
  12. 1.73 km SW of Rutherford, California · 15536 days ago · 6 km deep · 52 km away
  13. 1.86 km NW of Hopland, California · 15536 days ago · 25 km deep · 38 km away
  14. 2.56 km W of Cobb, California · 15536 days ago · 1 km deep · 3 km away
  15. 1.86 km WSW of Geyserville, California · 15536 days ago · 11 km deep · 19 km away
  16. 1.54 km WSW of Cobb, California · 15535 days ago · 1 km deep · 4 km away
  17. 2.47 km WSW of Cobb, California · 15535 days ago · 2 km deep · 1 km away
  18. 2.411 km E of Cloverdale, California · 15534 days ago · 22 km deep · 6 km away
  19. 2.313 km N of Comptche, California · 15534 days ago · 21 km deep · 91 km away
  20. 1.64 km WSW of Cobb, California · 15534 days ago · 1 km deep · 4 km away
  21. 1.65 km SW of Cobb, California · 15534 days ago · 1 km deep · 4 km away
  22. 2.08 km WSW of Cobb, California · 15534 days ago · 3 km deep · 2 km away
  23. 1.97 km WSW of Cobb, California · 15534 days ago · 0 km deep · 1 km away
  24. 2.18 km W of Cobb, California · 15534 days ago · 0 km deep · 2 km away
  25. 1.97 km E of Willits, California · 15534 days ago · 7 km deep · 77 km away
  26. 1.713 km WNW of Cloverdale, California · 15533 days ago · 23 km deep · 31 km away
  27. 1.511 km SSW of Kelseyville, California · 15533 days ago · 19 km deep · 10 km away
  28. 1.77 km WSW of Cobb, California · 15533 days ago · 1 km deep · 1 km away
  29. 2.57 km W of Cobb, California · 15533 days ago · 4 km deep · 2 km away
  30. 1.76 km WSW of Inverness, California · 15532 days ago · 5 km deep · 82 km away
  31. 2.16 km W of Cobb, California · 15532 days ago · 2 km deep · 2 km away
  32. 1.76 km NNE of Black Point-Green Point, California · 15531 days ago · 1 km deep · 76 km away
  33. 1.53 km NNE of Geyserville, California · 15531 days ago · 14 km deep · 10 km away
  34. 1.57 km WSW of Cobb, California · 15531 days ago · 1 km deep · 1 km away
  35. 2.43 km SSW of Green Valley, California · 15531 days ago · 5 km deep · 85 km away
  36. 2.21 km SSE of Green Valley, California · 15531 days ago · 5 km deep · 85 km away
  37. 1.67 km W of Cobb, California · 15531 days ago · 3 km deep · 2 km away
  38. 1.85 km SW of Cobb, California · 15531 days ago · 1 km deep · 6 km away
  39. 2.00 km WSW of Green Valley, California · 15530 days ago · 9 km deep · 83 km away
  40. 1.76 km WNW of American Canyon, California · 15530 days ago · 5 km deep · 80 km away
  41. 1.65 km SW of Cobb, California · 15530 days ago · 1 km deep · 6 km away
  42. 3.24 km N of Redwood Valley, California · 15530 days ago · 8 km deep · 66 km away
  43. 1.74 km N of Redwood Valley, California · 15530 days ago · 4 km deep · 65 km away
  44. 1.67 km WSW of Cobb, California · 15529 days ago · 1 km deep · 1 km away
  45. 1.810 km ESE of Hopland, California · 15528 days ago · 10 km deep · 22 km away
  46. 1.67 km WSW of Cobb, California · 15528 days ago · 1 km deep · 1 km away
  47. 2.37 km WSW of Cobb, California · 15528 days ago · 1 km deep · 1 km away
  48. 1.62 km NE of Ukiah, California · 15527 days ago · 8 km deep · 52 km away
  49. 1.98 km WSW of Cobb, California · 15527 days ago · 3 km deep · 1 km away
  50. 1.57 km WSW of Calistoga, California · 15526 days ago · 0 km deep · 32 km away
  51. 2.17 km W of Cobb, California · 15526 days ago · -1 km deep · 1 km away
  52. 2.05 km WSW of Cobb, California · 15526 days ago · 0 km deep · 3 km away
  53. 3.05 km WSW of Cobb, California · 15526 days ago · 0 km deep · 3 km away
  54. 2.26 km WSW of Cobb, California · 15526 days ago · 0 km deep · 2 km away
  55. 2.09 km W of Cobb, California · 15525 days ago · 2 km deep · 1 km away
  56. 1.66 km NNE of Benicia, California · 15525 days ago · 5 km deep · 98 km away
  57. 2.16 km NNE of Clearlake Oaks, California · 15525 days ago · 6 km deep · 35 km away
  58. 1.55 km W of Cobb, California · 15524 days ago · 0 km deep · 4 km away
  59. 1.76 km W of Cobb, California · 15524 days ago · 0 km deep · 4 km away
  60. 2.39 km WSW of Cobb, California · 15524 days ago · 1 km deep · 1 km away

The first 60 of 169.

Before

  1. 2.16 km WSW of Cobb, California · 15541 days ago · 0 km deep · 2 km away
  2. 1.94 km WSW of Cobb, California · 15541 days ago · 1 km deep · 4 km away
  3. 2.48 km WNW of Cobb, CA · 15541 days ago · 8 km deep · 4 km away
  4. 2.024 km SE of Covelo, California · 15542 days ago · 4 km deep · 93 km away
  5. 2.05 km SE of Calpella, California · 15542 days ago · 2 km deep · 53 km away
  6. 1.57 km W of Cobb, California · 15542 days ago · 3 km deep · 1 km away
  7. 1.88 km SE of Sea Ranch, California · 15542 days ago · 6 km deep · 53 km away
  8. 1.73 km W of Redwood Valley, California · 15542 days ago · 6 km deep · 63 km away
  9. 2.24 km NE of Ukiah, California · 15543 days ago · 4 km deep · 52 km away
  10. 1.712 km SE of Hidden Valley Lake, California · 15543 days ago · 3 km deep · 33 km away
  11. 1.67 km W of Cobb, California · 15543 days ago · 3 km deep · 2 km away
  12. 1.84 km W of Cobb, California · 15543 days ago · 0 km deep · 4 km away
  13. 1.58 km W of Cobb, California · 15543 days ago · 0 km deep · 1 km away
  14. 1.925 km SE of Covelo, California · 15544 days ago · 5 km deep · 93 km away
  15. 2.95 km E of Angwin, California · 15544 days ago · -1 km deep · 45 km away
  16. 1.73 km ESE of Kenwood, California · 15545 days ago · 17 km deep · 52 km away
  17. 1.96 km W of Cobb, California · 15545 days ago · 3 km deep · 2 km away
  18. 1.91 km WNW of Redwood Valley, California · 15546 days ago · 5 km deep · 63 km away
  19. 2.18 km E of Willits, California · 15546 days ago · 7 km deep · 77 km away
  20. 1.66 km W of Cobb, California · 15546 days ago · 0 km deep · 3 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc10608. Read Thu, Oct 1, 2026, 3:51 AM UTC.