California earthquakes

M2.0 earthquake 4 km W of Cobb, California

A magnitude 2.0 earthquake struck 4 km W of Cobb, California on Tue, May 19, 1987, 11:28 AM PDT (18:28 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M2.5 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
2.0 (md), micro
Local time
UTC
1987-05-19 18:28:30 UTC
Depth
0.0 km (0.0 mi), shallow
Epicenter
38.822° N, 122.775° 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, 0.5 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
76°
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: 175 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 2.54 km WSW of Cobb, California · 14355 days ago · 1 km deep · 2 km away
  2. 1.86 km W of Cobb, California · 14355 days ago · 1 km deep · 2 km away
  3. 2.27 km WSW of Cobb, California · 14354 days ago · 1 km deep · 4 km away
  4. 1.77 km WSW of Cobb, California · 14354 days ago · 1 km deep · 4 km away
  5. 2.13 km SSE of Calpella, California · 14353 days ago · 1 km deep · 55 km away
  6. 2.06 km WNW of Cobb, California · 14352 days ago · 1 km deep · 2 km away
  7. 2.8Northern California · 14352 days ago · 1 km deep · 4 km away
  8. 2.87 km W of Cobb, California · 14352 days ago · -1 km deep · 3 km away
  9. 1.84 km WSW of Cobb, California · 14352 days ago · 2 km deep · 3 km away
  10. 3.09 km W of Cobb, California · 14352 days ago · 1 km deep · 5 km away
  11. 1.59 km W of Cobb, California · 14352 days ago · 0 km deep · 5 km away
  12. 2.49 km W of Cobb, California · 14352 days ago · 0 km deep · 5 km away
  13. 1.89 km W of Cobb, California · 14352 days ago · 0 km deep · 5 km away
  14. 1.79 km SSE of Sea Ranch, California · 14351 days ago · 1 km deep · 58 km away
  15. 1.95 km WNW of Cobb, California · 14351 days ago · 2 km deep · 2 km away
  16. 1.68 km SSE of Sea Ranch, California · 14351 days ago · 5 km deep · 59 km away
  17. 1.68 km W of Cobb, California · 14351 days ago · 0 km deep · 4 km away
  18. 1.69 km W of Cobb, California · 14351 days ago · 0 km deep · 5 km away
  19. 1.64 km W of Cobb, California · 14351 days ago · 1 km deep · 0 km away
  20. 1.9Northern California · 14350 days ago · 3 km deep · 4 km away
  21. 1.69 km E of Hidden Valley Lake, California · 14349 days ago · 6 km deep · 29 km away
  22. 2.06 km W of Cobb, California · 14349 days ago · 3 km deep · 2 km away
  23. 1.74 km SSW of Cobb, California · 14349 days ago · 4 km deep · 5 km away
  24. 1.59 km W of Cobb, California · 14349 days ago · -1 km deep · 5 km away
  25. 1.77 km WSW of Cobb, California · 14348 days ago · 2 km deep · 4 km away
  26. 1.57 km S of Cobb, California · 14348 days ago · 0 km deep · 9 km away
  27. 3.15 km SW of Cobb, California · 14348 days ago · 1 km deep · 4 km away
  28. 1.95 km SW of Cobb, California · 14348 days ago · 1 km deep · 4 km away
  29. 1.65 km SW of Cobb, California · 14348 days ago · 0 km deep · 5 km away
  30. 2.38 km W of Cobb, California · 14347 days ago · 1 km deep · 4 km away
  31. 2.38 km W of Cobb, California · 14347 days ago · 2 km deep · 4 km away
  32. 1.98 km W of Cobb, California · 14347 days ago · 1 km deep · 4 km away
  33. 2.0Northern California · 14347 days ago · 1 km deep · 3 km away
  34. 1.73 km NNW of Cobb, California · 14347 days ago · 2 km deep · 5 km away
  35. 2.35 km SW of Cobb, California · 14346 days ago · -1 km deep · 4 km away
  36. 1.64 km W of Cobb, California · 14346 days ago · 1 km deep · 1 km away
  37. 1.93 km NNE of Windsor, California · 14346 days ago · 2 km deep · 27 km away
  38. 2.57 km WSW of Cobb, California · 14346 days ago · 2 km deep · 3 km away
  39. 1.75 km SSW of Cobb, California · 14345 days ago · -1 km deep · 6 km away
  40. 3.26 km W of Cobb, California · 14345 days ago · 3 km deep · 2 km away
  41. 1.87 km W of Cobb, California · 14345 days ago · 1 km deep · 3 km away
  42. 2.07 km WSW of Cobb, California · 14344 days ago · 1 km deep · 4 km away
  43. 1.714 km SE of Hidden Valley Lake, California · 14344 days ago · -1 km deep · 33 km away
  44. 1.95 km W of Cobb, California · 14344 days ago · 0 km deep · 2 km away
  45. 2.26 km W of Cobb, California · 14344 days ago · 0 km deep · 2 km away
  46. 1.64 km SW of Cobb, California · 14344 days ago · 4 km deep · 4 km away
  47. 2.45 km N of Port Costa, California · 14344 days ago · 10 km deep · 96 km away
  48. 2.06 km W of Cobb, California · 14343 days ago · 2 km deep · 2 km away
  49. 1.94 km NW of Potter Valley, California · 14341 days ago · 4 km deep · 67 km away
  50. 2.38 km W of Cobb, California · 14341 days ago · -1 km deep · 4 km away
  51. 1.84 km WSW of Cobb, California · 14341 days ago · 1 km deep · 2 km away
  52. 2.57 km W of Cobb, California · 14340 days ago · 4 km deep · 3 km away
  53. 2.27 km WSW of Cobb, California · 14340 days ago · 3 km deep · 3 km away
  54. 2.04 km W of Cobb, California · 14340 days ago · -1 km deep · 0 km away
  55. 1.6Northern California · 14340 days ago · 1 km deep · 0 km away
  56. 2.017 km NNE of Angwin, California · 14340 days ago · 9 km deep · 36 km away
  57. 1.77 km W of Cobb, California · 14340 days ago · 3 km deep · 3 km away
  58. 1.87 km W of Cobb, California · 14340 days ago · 2 km deep · 3 km away
  59. 1.65 km WNW of Cobb, California · 14339 days ago · 1 km deep · 2 km away
  60. 1.95 km W of Cobb, California · 14339 days ago · 0 km deep · 1 km away

The first 60 of 175.

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc100667. Read Tue, Sep 22, 2026, 9:33 PM UTC.