California earthquakes

M1.5 earthquake 5 km SW of Cobb, California

A magnitude 1.5 earthquake struck 5 km SW of Cobb, California on Sun, Apr 29, 1984, 6:44 AM PDT (13:44 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M2.1 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.

Open the live map with earthquakes

The earthquake

Magnitude
1.5 (md), micro
Local time
UTC
1984-04-29 13:44:25 UTC
Depth
0.7 km (0.5 mi), shallow
Epicenter
38.791° N, 122.779° 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, 0.4 km in depth
Magnitude uncertainty
±0.19
Depth from
From location
Station coverage gap
58°
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 168 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 2.17 km W of Cobb, California · 15478 days ago · 2 km deep · 4 km away
  2. 1.67 km W of Cobb, California · 15478 days ago · 1 km deep · 4 km away
  3. 2.25 km SW of Cobb, California · 15477 days ago · 0 km deep · 1 km away
  4. 1.60 km NE of Larkfield-Wikiup, California · 15477 days ago · 3 km deep · 31 km away
  5. 1.77 km W of Cobb, California · 15476 days ago · 4 km deep · 4 km away
  6. 1.76 km SW of Cobb, California · 15476 days ago · 0 km deep · 1 km away
  7. 1.87 km W of Cobb, California · 15476 days ago · 3 km deep · 4 km away
  8. 1.56 km W of Cobb, California · 15475 days ago · 2 km deep · 5 km away
  9. 1.59 km W of Cobb, California · 15475 days ago · 2 km deep · 5 km away
  10. 1.88 km SE of Willits, California · 15475 days ago · 4 km deep · 76 km away
  11. 1.77 km WSW of Cobb, California · 15474 days ago · 3 km deep · 3 km away
  12. 2.25 km ESE of Manchester, California · 15473 days ago · 0 km deep · 76 km away
  13. 1.86 km W of Cobb, California · 15472 days ago · 3 km deep · 4 km away
  14. 1.73 km N of Clearlake, California · 15472 days ago · 0 km deep · 25 km away
  15. 1.620 km NNE of Upper Lake, California · 15472 days ago · 6 km deep · 62 km away
  16. 1.66 km WSW of Cobb, California · 15471 days ago · 3 km deep · 2 km away
  17. 1.75 km WSW of Rutherford, California · 15470 days ago · 0 km deep · 47 km away
  18. 1.77 km WSW of Cobb, California · 15470 days ago · 3 km deep · 2 km away
  19. 1.816 km ENE of Potter Valley, California · 15470 days ago · 6 km deep · 69 km away
  20. 2.34 km SW of Cobb, California · 15469 days ago · 0 km deep · 2 km away
  21. 1.67 km W of Cobb, California · 15469 days ago · 3 km deep · 3 km away
  22. 1.96 km W of Cobb, California · 15469 days ago · 2 km deep · 3 km away
  23. 1.66 km W of Cobb, California · 15469 days ago · 3 km deep · 4 km away
  24. 1.67 km WSW of Cobb, California · 15468 days ago · 2 km deep · 3 km away
  25. 1.96 km W of Cobb, California · 15468 days ago · 3 km deep · 3 km away
  26. 2.37 km WSW of Cobb, California · 15468 days ago · 0 km deep · 2 km away
  27. 1.93 km SE of Calpella, California · 15468 days ago · 5 km deep · 58 km away
  28. 1.67 km E of Hidden Valley Lake, California · 15467 days ago · 7 km deep · 27 km away
  29. 1.77 km WSW of Cobb, California · 15467 days ago · 0 km deep · 2 km away
  30. 1.8Northern California · 15467 days ago · 4 km deep · 22 km away
  31. 3.05 km SW of Cobb, California · 15467 days ago · 0 km deep · 2 km away
  32. 1.96 km W of Cobb, California · 15467 days ago · 3 km deep · 4 km away
  33. 1.525 km SE of Covelo, California · 15466 days ago · 4 km deep · 95 km away
  34. 1.6Northern California · 15465 days ago · 0 km deep · 31 km away
  35. 1.87 km S of Calistoga, California · 15465 days ago · 1 km deep · 36 km away
  36. 2.56 km W of Cobb, California · 15464 days ago · 2 km deep · 3 km away
  37. 2.16 km W of Cobb, California · 15464 days ago · 2 km deep · 3 km away
  38. 1.67 km WSW of Cobb, California · 15464 days ago · 4 km deep · 3 km away
  39. 1.57 km WSW of Cobb, California · 15464 days ago · 3 km deep · 3 km away
  40. 1.75 km ESE of Healdsburg, California · 15464 days ago · 4 km deep · 21 km away
  41. 2.47 km WSW of Cobb, California · 15464 days ago · 1 km deep · 2 km away
  42. 1.712 km S of Comptche, California · 15463 days ago · 3 km deep · 82 km away
  43. 2.112 km S of Comptche, California · 15463 days ago · 0 km deep · 81 km away
  44. 1.55 km N of Windsor, California · 15463 days ago · 7 km deep · 22 km away
  45. 2.47 km WSW of Cobb, California · 15463 days ago · -1 km deep · 3 km away
  46. 2.37 km W of Cobb, California · 15462 days ago · 2 km deep · 4 km away
  47. 2.07 km W of Cobb, California · 15462 days ago · 1 km deep · 5 km away
  48. 1.56 km WSW of Cobb, California · 15461 days ago · 1 km deep · 2 km away
  49. 1.8Northern California · 15461 days ago · 3 km deep · 3 km away
  50. 1.98 km WSW of Cobb, California · 15461 days ago · 3 km deep · 3 km away
  51. 2.38 km WSW of Cobb, California · 15461 days ago · 2 km deep · 4 km away
  52. 1.77 km W of Cobb, California · 15461 days ago · 3 km deep · 3 km away
  53. 1.610 km N of Comptche, California · 15460 days ago · 5 km deep · 94 km away
  54. 1.66 km NE of Lower Lake, California · 15460 days ago · 1 km deep · 26 km away
  55. 1.67 km SSW of Willits, California · 15460 days ago · 1 km deep · 82 km away
  56. 2.621 km NE of Potter Valley, California · 15460 days ago · 5 km deep · 76 km away
  57. 1.88 km E of Lower Lake, California · 15460 days ago · 3 km deep · 27 km away
  58. 1.56 km W of Cobb, California · 15459 days ago · 0 km deep · 4 km away
  59. 2.56 km W of Cobb, California · 15459 days ago · 0 km deep · 4 km away
  60. 1.77 km W of Cobb, California · 15459 days ago · 0 km deep · 5 km away

The first 60 of 168.

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc16950. Read Tue, Sep 22, 2026, 9:43 PM UTC.