California earthquakes

M1.8 earthquake 9 km WSW of Cobb, California

A magnitude 1.8 earthquake struck 9 km WSW of Cobb, California on Sat, May 2, 1981, 2:16 PM PDT (21:16 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M1.9 17 km ENE of Willits, 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
1.8 (md), micro
Local time
UTC
1981-05-02 21:16:22 UTC
Depth
2.0 km (1.3 mi), shallow
Epicenter
38.804° N, 122.826° 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
±0.14
Depth from
From location
Station coverage gap
40°
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: 130 in the 60 days after this one and 50 in the 30 days before it.

After

  1. 1.917 km ENE of Willits, California · 16579 days ago · 6 km deep · 83 km away
  2. 2.26 km WSW of Cobb, California · 16577 days ago · -1 km deep · 3 km away
  3. 1.94 km WSW of Cobb, California · 16577 days ago · 1 km deep · 5 km away
  4. 1.69 km NE of Cloverdale, California · 16577 days ago · 3 km deep · 14 km away
  5. 1.88 km W of Cobb, California · 16576 days ago · 1 km deep · 2 km away
  6. 2.18 km W of Cobb, California · 16576 days ago · 0 km deep · 2 km away
  7. 1.611 km W of Cobb, California · 16576 days ago · -1 km deep · 4 km away
  8. 1.78 km WSW of Cobb, California · 16576 days ago · 4 km deep · 2 km away
  9. 1.925 km SE of Covelo, California · 16575 days ago · 5 km deep · 92 km away
  10. 1.63 km ESE of Calpella, California · 16575 days ago · 3 km deep · 55 km away
  11. 1.59 km N of Cloverdale, California · 16574 days ago · 2 km deep · 18 km away
  12. 1.97 km S of Calistoga, California · 16573 days ago · 8 km deep · 39 km away
  13. 3.27 km SW of Artois, California · 16573 days ago · 19 km deep · 98 km away
  14. 2.59 km W of Cobb, California · 16573 days ago · 1 km deep · 1 km away
  15. 1.54 km WSW of Cobb, California · 16573 days ago · 2 km deep · 5 km away
  16. 2.66 km WSW of Cobb, California · 16573 days ago · 1 km deep · 3 km away
  17. 2.57 km SW of Calistoga, California · 16572 days ago · 6 km deep · 35 km away
  18. 1.65 km NNE of Clearlake, California · 16572 days ago · 1 km deep · 30 km away
  19. 1.78 km ESE of Willits, California · 16572 days ago · 1 km deep · 74 km away
  20. 1.817 km NNE of Upper Lake, California · 16571 days ago · 13 km deep · 57 km away
  21. 1.913 km WSW of Maxwell, California · 16571 days ago · -1 km deep · 63 km away
  22. 1.714 km NNE of Clearlake Oaks, California · 16571 days ago · 8 km deep · 42 km away
  23. 3.06 km WSW of Lower Lake, California · 16571 days ago · 5 km deep · 16 km away
  24. 2.018 km NE of Upper Lake, California · 16571 days ago · 7 km deep · 55 km away
  25. 1.61 km SE of Clearlake, California · 16571 days ago · 11 km deep · 24 km away
  26. 1.612 km SE of Hidden Valley Lake, California · 16570 days ago · 8 km deep · 34 km away
  27. 2.36 km W of Cobb, California · 16570 days ago · 3 km deep · 3 km away
  28. 1.62 km NE of Potter Valley, California · 16570 days ago · 4 km deep · 63 km away
  29. 1.77 km N of Hopland, California · 16570 days ago · 6 km deep · 36 km away
  30. 1.75 km WSW of Lower Lake, California · 16569 days ago · 4 km deep · 17 km away
  31. 1.916 km WSW of Williams, California · 16569 days ago · 2 km deep · 55 km away
  32. 2.16 km NE of Hidden Valley Lake, California · 16568 days ago · 57 km deep · 29 km away
  33. 2.011 km E of Geyserville, California · 16568 days ago · 6 km deep · 12 km away
  34. 1.86 km ENE of Brooktrails, California · 16568 days ago · 7 km deep · 85 km away
  35. 2.314 km S of Guinda, California · 16567 days ago · 4 km deep · 54 km away
  36. 2.313 km WSW of Esparto, California · 16567 days ago · 4 km deep · 59 km away
  37. 1.714 km SW of Guinda, California · 16567 days ago · 5 km deep · 45 km away
  38. 2.04 km WSW of Cobb, California · 16565 days ago · 2 km deep · 5 km away
  39. 2.37 km WSW of Cobb, California · 16563 days ago · 4 km deep · 2 km away
  40. 1.63 km ENE of Clear Lake Riviera, California · 16563 days ago · 3 km deep · 21 km away
  41. 1.53 km E of Clear Lake Riviera, California · 16563 days ago · -1 km deep · 21 km away
  42. 1.83 km E of Clear Lake Riviera, California · 16563 days ago · 3 km deep · 21 km away
  43. 1.57 km WSW of Cobb, California · 16563 days ago · 2 km deep · 1 km away
  44. 1.64 km WSW of Cobb, California · 16562 days ago · 2 km deep · 5 km away
  45. 2.216 km SSE of Sea Ranch, California · 16562 days ago · 1 km deep · 55 km away
  46. 1.512 km E of Angwin, California · 16562 days ago · 5 km deep · 51 km away
  47. 1.97 km WSW of Cobb, California · 16561 days ago · 2 km deep · 2 km away
  48. 1.86 km W of Cobb, California · 16561 days ago · 2 km deep · 3 km away
  49. 1.76 km WSW of Cobb, California · 16561 days ago · 1 km deep · 3 km away
  50. 1.74 km WSW of Cobb, California · 16560 days ago · 4 km deep · 5 km away
  51. 2.27 km W of Cobb, California · 16560 days ago · 3 km deep · 2 km away
  52. 1.76 km W of Cobb, California · 16559 days ago · 1 km deep · 3 km away
  53. 2.021 km ENE of Potter Valley, California · 16558 days ago · 6 km deep · 63 km away
  54. 2.22 km NNE of Upper Lake, California · 16558 days ago · 0 km deep · 42 km away
  55. 1.82 km SE of Clear Lake Riviera, California · 16557 days ago · 4 km deep · 19 km away
  56. 1.55 km WSW of Cobb, California · 16557 days ago · 2 km deep · 4 km away
  57. 2.511 km N of Cloverdale, California · 16557 days ago · 3 km deep · 19 km away
  58. 1.710 km NNE of Cloverdale, California · 16557 days ago · 3 km deep · 17 km away
  59. 1.78 km WSW of Cobb, California · 16555 days ago · 1 km deep · 1 km away
  60. 1.86 km WSW of Cobb, California · 16554 days ago · 3 km deep · 3 km away

The first 60 of 130.

Before

  1. 1.5near the coast of Northern California · 16580 days ago · 7 km deep · 78 km away
  2. 1.612 km S of Guinda, California · 16580 days ago · 4 km deep · 56 km away
  3. 1.66 km WSW of Cobb, California · 16580 days ago · 0 km deep · 3 km away
  4. 1.910 km ESE of Willits, California · 16581 days ago · 6 km deep · 73 km away
  5. 1.56 km W of Cobb, California · 16581 days ago · 4 km deep · 3 km away
  6. 1.85 km SW of Cobb, California · 16582 days ago · 0 km deep · 5 km away
  7. 2.95 km SW of Cobb, California · 16582 days ago · 0 km deep · 5 km away
  8. 1.66 km WSW of Cobb, California · 16583 days ago · 0 km deep · 3 km away
  9. 2.18 km E of Hidden Valley Lake, California · 16585 days ago · 7 km deep · 31 km away
  10. 1.86 km WSW of Cobb, California · 16585 days ago · 1 km deep · 3 km away
  11. 2.16 km WSW of Cobb, California · 16585 days ago · 1 km deep · 3 km away
  12. 1.79 km WSW of Cobb, California · 16585 days ago · 2 km deep · 1 km away
  13. 1.76 km W of Cobb, California · 16587 days ago · 4 km deep · 3 km away
  14. 1.64 km WSW of Cobb, California · 16588 days ago · 2 km deep · 5 km away
  15. 2.34 km WSW of Cobb, California · 16588 days ago · 2 km deep · 5 km away
  16. 1.86 km W of Cobb, California · 16588 days ago · 2 km deep · 3 km away
  17. 1.611 km NE of Healdsburg, California · 16589 days ago · 5 km deep · 16 km away
  18. 1.87 km W of Cobb, California · 16590 days ago · 1 km deep · 3 km away
  19. 1.84 km E of Clear Lake Riviera, California · 16592 days ago · 0 km deep · 21 km away
  20. 2.96 km W of Cobb, California · 16592 days ago · 3 km deep · 2 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1063237. Read Tue, Sep 22, 2026, 11:28 PM UTC.