California earthquakes

M1.6 earthquake 7 km W of Cobb, California

A magnitude 1.6 earthquake struck 7 km W of Cobb, California on Tue, May 8, 1984, 12:05 AM PDT (07:05 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M1.9 6 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
1.6 (md), micro
Local time
UTC
1984-05-08 07:05:05 UTC
Depth
0.6 km (0.4 mi), shallow
Epicenter
38.813° N, 122.814° 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
±0.17
Depth from
From location
Station coverage gap
79°
Stations used
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 172 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 1.96 km W of Cobb, California · 15468 days ago · 3 km deep · 1 km away
  2. 2.37 km WSW of Cobb, California · 15468 days ago · 0 km deep · 2 km away
  3. 1.93 km SE of Calpella, California · 15468 days ago · 5 km deep · 54 km away
  4. 1.67 km E of Hidden Valley Lake, California · 15467 days ago · 7 km deep · 30 km away
  5. 1.77 km WSW of Cobb, California · 15467 days ago · 0 km deep · 1 km away
  6. 1.8Northern California · 15467 days ago · 4 km deep · 24 km away
  7. 3.05 km SW of Cobb, California · 15467 days ago · 0 km deep · 5 km away
  8. 1.96 km W of Cobb, California · 15467 days ago · 3 km deep · 2 km away
  9. 1.525 km SE of Covelo, California · 15466 days ago · 4 km deep · 92 km away
  10. 1.6Northern California · 15465 days ago · 0 km deep · 35 km away
  11. 1.87 km S of Calistoga, California · 15465 days ago · 1 km deep · 39 km away
  12. 2.56 km W of Cobb, California · 15464 days ago · 2 km deep · 1 km away
  13. 2.16 km W of Cobb, California · 15464 days ago · 2 km deep · 1 km away
  14. 1.67 km WSW of Cobb, California · 15464 days ago · 4 km deep · 1 km away
  15. 1.57 km WSW of Cobb, California · 15464 days ago · 3 km deep · 2 km away
  16. 1.75 km ESE of Healdsburg, California · 15464 days ago · 4 km deep · 24 km away
  17. 2.47 km WSW of Cobb, California · 15464 days ago · 1 km deep · 2 km away
  18. 1.712 km S of Comptche, California · 15463 days ago · 3 km deep · 78 km away
  19. 2.112 km S of Comptche, California · 15463 days ago · 0 km deep · 77 km away
  20. 1.55 km N of Windsor, California · 15463 days ago · 7 km deep · 24 km away
  21. 2.47 km WSW of Cobb, California · 15463 days ago · -1 km deep · 1 km away
  22. 2.37 km W of Cobb, California · 15462 days ago · 2 km deep · 0 km away
  23. 2.07 km W of Cobb, California · 15462 days ago · 1 km deep · 2 km away
  24. 1.56 km WSW of Cobb, California · 15461 days ago · 1 km deep · 2 km away
  25. 1.8Northern California · 15461 days ago · 3 km deep · 2 km away
  26. 1.98 km WSW of Cobb, California · 15461 days ago · 3 km deep · 2 km away
  27. 2.38 km WSW of Cobb, California · 15461 days ago · 2 km deep · 2 km away
  28. 1.77 km W of Cobb, California · 15461 days ago · 3 km deep · 1 km away
  29. 1.610 km N of Comptche, California · 15460 days ago · 5 km deep · 90 km away
  30. 1.66 km NE of Lower Lake, California · 15460 days ago · 1 km deep · 27 km away
  31. 1.67 km SSW of Willits, California · 15460 days ago · 1 km deep · 78 km away
  32. 2.621 km NE of Potter Valley, California · 15460 days ago · 5 km deep · 73 km away
  33. 1.88 km E of Lower Lake, California · 15460 days ago · 3 km deep · 28 km away
  34. 1.56 km W of Cobb, California · 15459 days ago · 0 km deep · 2 km away
  35. 2.56 km W of Cobb, California · 15459 days ago · 0 km deep · 2 km away
  36. 1.77 km W of Cobb, California · 15459 days ago · 0 km deep · 2 km away
  37. 1.65 km WSW of Cobb, California · 15459 days ago · 1 km deep · 3 km away
  38. 1.616 km ENE of Potter Valley, California · 15459 days ago · 7 km deep · 66 km away
  39. 1.92 km WSW of Cobb, California · 15459 days ago · -1 km deep · 5 km away
  40. 1.73 km SW of Cobb, California · 15459 days ago · 1 km deep · 6 km away
  41. 1.57 km W of Potter Valley, California · 15459 days ago · 8 km deep · 67 km away
  42. 1.76 km W of Cobb, California · 15458 days ago · 3 km deep · 1 km away
  43. 1.68 km W of Cobb, California · 15458 days ago · -1 km deep · 1 km away
  44. 2.28 km SW of Cobb, California · 15458 days ago · -1 km deep · 5 km away
  45. 3.08 km W of Cobb, California · 15458 days ago · -1 km deep · 2 km away
  46. 2.67 km WSW of Cobb, California · 15457 days ago · 3 km deep · 1 km away
  47. 3.17 km WSW of Cobb, California · 15457 days ago · 1 km deep · 1 km away
  48. 1.77 km WSW of Cobb, California · 15457 days ago · 4 km deep · 2 km away
  49. 2.14 km NE of Willits, California · 15457 days ago · 1 km deep · 82 km away
  50. 2.15 km SW of Cobb, California · 15456 days ago · 1 km deep · 4 km away
  51. 1.521 km NE of Potter Valley, California · 15455 days ago · 4 km deep · 75 km away
  52. 1.517 km NE of Potter Valley, California · 15455 days ago · 3 km deep · 71 km away
  53. 1.83 km W of Cobb, California · 15455 days ago · -1 km deep · 4 km away
  54. 1.65 km SW of Moskowite Corner, California · 15455 days ago · 11 km deep · 67 km away
  55. 1.517 km N of Potter Valley, California · 15455 days ago · 8 km deep · 78 km away
  56. 1.86 km W of Cobb, California · 15455 days ago · 2 km deep · 2 km away
  57. 1.85 km W of Cobb, California · 15454 days ago · 1 km deep · 3 km away
  58. 1.66 km W of Cobb, California · 15454 days ago · 3 km deep · 2 km away
  59. 1.65 km W of Cobb, California · 15454 days ago · 0 km deep · 3 km away
  60. 1.55 km W of Cobb, California · 15454 days ago · 0 km deep · 3 km away

The first 60 of 172.

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc17835. Read Tue, Sep 22, 2026, 9:40 PM UTC.