California earthquakes

M1.7 earthquake 7 km WSW of Cobb, California

A magnitude 1.7 earthquake struck 7 km WSW of Cobb, California on Thu, Jun 11, 1987, 12:01 PM PDT (19:01 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M1.8 4 km WSW 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
1.7 (md), micro
Local time
UTC
1987-06-11 19:01:41 UTC
Depth
1.6 km (1.0 mi), shallow
Epicenter
38.801° N, 122.807° 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, 0.4 km in depth
Magnitude uncertainty
±0.20
Depth from
From location
Station coverage gap
83°
Stations used
9

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. 1.54 km ENE of Calpella, California · 14335 days ago · 5 km deep · 58 km away
  2. 1.54 km WSW of Cobb, California · 14335 days ago · 2 km deep · 3 km away
  3. 1.53 km N of Cloverdale, California · 14335 days ago · 0 km deep · 19 km away
  4. 1.67 km E of Willits, California · 14334 days ago · 8 km deep · 79 km away
  5. 1.55 km SW of Cobb, California · 14334 days ago · 0 km deep · 4 km away
  6. 1.65 km WSW of Cobb, California · 14334 days ago · 1 km deep · 3 km away
  7. 1.84 km WSW of Cobb, California · 14334 days ago · 1 km deep · 3 km away
  8. 1.68 km W of Cobb, California · 14333 days ago · 1 km deep · 2 km away
  9. 1.68 km NW of Redwood Valley, California · 14333 days ago · 3 km deep · 70 km away
  10. 1.66 km WSW of Cobb, California · 14333 days ago · 3 km deep · 1 km away
  11. 2.46 km WNW of Cobb, California · 14333 days ago · 0 km deep · 4 km away
  12. 2.87 km WNW of Cobb, California · 14333 days ago · -1 km deep · 4 km away
  13. 1.66 km W of Cobb, California · 14333 days ago · 3 km deep · 2 km away
  14. 1.55 km W of Cobb, California · 14332 days ago · 1 km deep · 3 km away
  15. 1.86 km W of Cobb, California · 14332 days ago · 3 km deep · 2 km away
  16. 2.24 km WSW of Cobb, California · 14332 days ago · 0 km deep · 3 km away
  17. 1.94 km W of Cobb, California · 14331 days ago · 0 km deep · 4 km away
  18. 2.05 km W of Cobb, California · 14331 days ago · -1 km deep · 3 km away
  19. 1.66 km WSW of Cobb, California · 14331 days ago · 0 km deep · 1 km away
  20. 1.66 km W of Cobb, California · 14331 days ago · 3 km deep · 2 km away
  21. 2.55 km SW of Cobb, California · 14331 days ago · 2 km deep · 3 km away
  22. 2.35 km WSW of Cobb, California · 14330 days ago · 3 km deep · 2 km away
  23. 3.223 km NE of Potter Valley, California · 14329 days ago · 9 km deep · 78 km away
  24. 1.59 km SSE of Boonville, California · 14329 days ago · 3 km deep · 47 km away
  25. 1.87 km W of Cobb, California · 14329 days ago · -1 km deep · 2 km away
  26. 2.711 km N of Cloverdale, California · 14328 days ago · 5 km deep · 20 km away
  27. 2.39 km WSW of Cobb, California · 14328 days ago · 2 km deep · 2 km away
  28. 1.88 km WSW of Cobb, California · 14328 days ago · 1 km deep · 1 km away
  29. 1.76 km WNW of Kenwood, California · 14328 days ago · 11 km deep · 44 km away
  30. 1.98 km WSW of Cobb, California · 14328 days ago · 4 km deep · 1 km away
  31. 1.66 km WSW of Cobb, California · 14327 days ago · 0 km deep · 2 km away
  32. 2.59 km NW of Stonyford, California · 14327 days ago · 6 km deep · 71 km away
  33. 1.810 km N of Cloverdale, California · 14327 days ago · 2 km deep · 20 km away
  34. 1.83 km NNW of Cloverdale, California · 14327 days ago · 0 km deep · 20 km away
  35. 1.95 km SW of Cobb, California · 14327 days ago · 0 km deep · 3 km away
  36. 1.58 km WSW of Cobb, California · 14326 days ago · 0 km deep · 1 km away
  37. 2.06 km WSW of Cobb, California · 14326 days ago · 0 km deep · 1 km away
  38. 1.85 km WNW of Cobb, California · 14326 days ago · 1 km deep · 4 km away
  39. 2.47 km WSW of Cobb, California · 14325 days ago · 1 km deep · 1 km away
  40. 1.95 km SW of Cobb, California · 14325 days ago · 0 km deep · 4 km away
  41. 1.55 km W of Cobb, California · 14325 days ago · 0 km deep · 2 km away
  42. 1.55 km W of Cobb, California · 14325 days ago · 0 km deep · 2 km away
  43. 1.59 km W of Cobb, California · 14325 days ago · 1 km deep · 2 km away
  44. 1.79 km ESE of Willits, California · 14325 days ago · 3 km deep · 74 km away
  45. 1.92 km N of Larkfield-Wikiup, California · 14325 days ago · 5 km deep · 30 km away
  46. 1.84 km W of Cobb, California · 14324 days ago · 2 km deep · 4 km away
  47. 3.05 km SW of Cobb, California · 14324 days ago · 0 km deep · 4 km away
  48. 2.15 km SW of Cobb, California · 14324 days ago · 0 km deep · 3 km away
  49. 2.54 km W of Cobb, California · 14324 days ago · 0 km deep · 4 km away
  50. 1.6Northern California · 14324 days ago · -1 km deep · 4 km away
  51. 1.65 km W of Cobb, California · 14323 days ago · 0 km deep · 3 km away
  52. 2.05 km NE of Penngrove, California · 14322 days ago · 4 km deep · 54 km away
  53. 1.711 km E of Calpella, California · 14322 days ago · 1 km deep · 52 km away
  54. 2.48 km WSW of Cobb, California · 14322 days ago · 2 km deep · 1 km away
  55. 1.68 km W of Cobb, California · 14321 days ago · 1 km deep · 3 km away
  56. 2.03 km SW of Cobb, California · 14321 days ago · 2 km deep · 5 km away
  57. 1.94 km W of Cobb, California · 14321 days ago · 0 km deep · 4 km away
  58. 1.69 km WSW of Cobb, California · 14321 days ago · 1 km deep · 2 km away
  59. 1.85 km SW of Cobb, California · 14321 days ago · 0 km deep · 3 km away
  60. 1.94 km WSW of Cobb, California · 14320 days ago · 1 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 nc101754. Read Tue, Sep 22, 2026, 9:29 PM UTC.