California earthquakes

M1.6 earthquake 6 km W of Cobb, California

A magnitude 1.6 earthquake struck 6 km W of Cobb, California on Thu, Feb 5, 1987, 12:19 AM PST (08:19 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.1 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
1987-02-05 08:19:39 UTC
Depth
3.1 km (1.9 mi), shallow
Epicenter
38.822° N, 122.792° 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
±0.15
Depth from
From location
Station coverage gap
77°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 176 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 3.16 km W of Cobb, California · 14467 days ago · 1 km deep · 1 km away
  2. 1.85 km SW of Cobb, California · 14467 days ago · 2 km deep · 5 km away
  3. 2.014 km ENE of Angwin, California · 14466 days ago · 9 km deep · 47 km away
  4. 2.04 km W of Cobb, California · 14465 days ago · 0 km deep · 1 km away
  5. 2.510 km NW of Cobb, California · 14465 days ago · 0 km deep · 7 km away
  6. 1.68 km WSW of Cobb, California · 14464 days ago · 4 km deep · 3 km away
  7. 2.36 km W of Cobb, California · 14464 days ago · 3 km deep · 1 km away
  8. 1.82 km E of Forestville, California · 14464 days ago · 2 km deep · 39 km away
  9. 1.56 km W of Cobb, California · 14463 days ago · 3 km deep · 1 km away
  10. 1.823 km NE of Potter Valley, California · 14462 days ago · 5 km deep · 71 km away
  11. 1.90 km S of Fulton, California · 14462 days ago · 6 km deep · 37 km away
  12. 1.65 km WNW of Cobb, California · 14462 days ago · 1 km deep · 2 km away
  13. 1.75 km WNW of Cobb, California · 14462 days ago · 1 km deep · 2 km away
  14. 1.86 km W of Cobb, California · 14462 days ago · 3 km deep · 0 km away
  15. 1.97 km W of Cobb, California · 14462 days ago · 1 km deep · 2 km away
  16. 2.06 km SW of Cobb, California · 14461 days ago · 2 km deep · 4 km away
  17. 2.06 km W of Cobb, California · 14461 days ago · 4 km deep · 0 km away
  18. 3.111 km NNE of Comptche, California · 14461 days ago · 2 km deep · 87 km away
  19. 1.69 km ESE of Hidden Valley Lake, California · 14460 days ago · 7 km deep · 29 km away
  20. 1.86 km SW of Cobb, California · 14460 days ago · 3 km deep · 4 km away
  21. 2.19 km W of Cobb, California · 14460 days ago · 1 km deep · 3 km away
  22. 1.74 km W of Cobb, California · 14459 days ago · -1 km deep · 2 km away
  23. 1.77 km W of Cobb, California · 14459 days ago · 3 km deep · 2 km away
  24. 2.56 km W of Cobb, California · 14459 days ago · 2 km deep · 0 km away
  25. 2.36 km W of Cobb, California · 14459 days ago · 2 km deep · 0 km away
  26. 1.79 km WSW of Cobb, California · 14459 days ago · 2 km deep · 4 km away
  27. 1.76 km WSW of Cobb, California · 14458 days ago · 3 km deep · 2 km away
  28. 1.52 km SSE of Cobb, California · 14458 days ago · 4 km deep · 7 km away
  29. 1.710 km NW of Cobb, California · 14458 days ago · 1 km deep · 7 km away
  30. 1.81 km W of Cobb, California · 14457 days ago · 4 km deep · 5 km away
  31. 1.59 km W of Cobb, California · 14457 days ago · 0 km deep · 3 km away
  32. 2.16 km W of Cobb, California · 14457 days ago · 3 km deep · 1 km away
  33. 2.13 km SW of Cobb, California · 14456 days ago · 1 km deep · 5 km away
  34. 2.47 km WSW of Cobb, California · 14456 days ago · 1 km deep · 2 km away
  35. 2.04 km SW of Cobb, California · 14456 days ago · 1 km deep · 4 km away
  36. 1.96 km W of Cobb, California · 14456 days ago · 3 km deep · 0 km away
  37. 1.76 km WSW of Cobb, California · 14455 days ago · 4 km deep · 2 km away
  38. 1.84 km WSW of Cobb, California · 14455 days ago · 1 km deep · 2 km away
  39. 1.89 km W of Cobb, California · 14455 days ago · -1 km deep · 4 km away
  40. 2.117 km SW of Cloverdale, California · 14454 days ago · 14 km deep · 35 km away
  41. 1.95 km WNW of Cobb, California · 14454 days ago · 0 km deep · 2 km away
  42. 1.67 km WSW of Cobb, California · 14454 days ago · 1 km deep · 2 km away
  43. 1.65 km SW of Cobb, California · 14454 days ago · -1 km deep · 5 km away
  44. 1.64 km ESE of Philo, California · 14454 days ago · 6 km deep · 58 km away
  45. 2.021 km NE of Potter Valley, California · 14453 days ago · 11 km deep · 72 km away
  46. 2.19 km NW of Bayview, California · 14453 days ago · 6 km deep · 92 km away
  47. 1.8Northern California · 14453 days ago · 4 km deep · 63 km away
  48. 1.84 km WNW of Cobb, California · 14453 days ago · 2 km deep · 2 km away
  49. 1.520 km ENE of Potter Valley, California · 14453 days ago · 4 km deep · 63 km away
  50. 3.26 km W of Cobb, California · 14452 days ago · 3 km deep · 0 km away
  51. 2.55 km SW of Cobb, California · 14450 days ago · 1 km deep · 4 km away
  52. 2.05 km SW of Cobb, California · 14450 days ago · 1 km deep · 5 km away
  53. 2.34 km W of Cobb, California · 14450 days ago · 1 km deep · 1 km away
  54. 1.918 km ENE of Potter Valley, California · 14449 days ago · 7 km deep · 60 km away
  55. 1.95 km WSW of Cobb, California · 14449 days ago · 1 km deep · 2 km away
  56. 1.68 km WSW of Cobb, California · 14449 days ago · 0 km deep · 3 km away
  57. 1.66 km WSW of Cobb, California · 14449 days ago · 3 km deep · 2 km away
  58. 2.09 km W of Cobb, California · 14449 days ago · -1 km deep · 3 km away
  59. 2.518 km ENE of Potter Valley, California · 14448 days ago · 6 km deep · 62 km away
  60. 2.14 km SW of Cobb, California · 14447 days ago · 1 km deep · 5 km away

The first 60 of 176.

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1147150. Read Tue, Sep 22, 2026, 11:19 AM UTC.