California earthquakes

M2.0 earthquake 8 km W of Cobb, California

A magnitude 2.0 earthquake struck 8 km W of Cobb, California on Mon, May 11, 1987, 8:44 PM PDT (03:44 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M3.3 4 km WNW 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, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1987-05-12 03:44:03 UTC
Depth
1.0 km (0.6 mi), shallow
Epicenter
38.818° N, 122.821° 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, 0.5 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
48°
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 177 in the 60 days after this one and 110 in the 30 days before it.

After

  1. 2.54 km SW of Glen Ellen, California · 14389 days ago · 6 km deep · 58 km away
  2. 1.78 km WNW of Cobb, California · 14388 days ago · 3 km deep · 3 km away
  3. 1.88 km W of Cobb, California · 14388 days ago · 1 km deep · 0 km away
  4. 1.714 km ESE of Hidden Valley Lake, California · 14388 days ago · 1 km deep · 36 km away
  5. 2.220 km NE of Potter Valley, California · 14388 days ago · 7 km deep · 69 km away
  6. 2.14 km SW of Glen Ellen, California · 14388 days ago · 6 km deep · 58 km away
  7. 2.14 km SW of Glen Ellen, California · 14387 days ago · 6 km deep · 58 km away
  8. 2.25 km W of Cobb, California · 14387 days ago · 1 km deep · 4 km away
  9. 1.66 km W of Cobb, California · 14387 days ago · 3 km deep · 2 km away
  10. 2.02 km SE of Larkfield-Wikiup, California · 14387 days ago · 4 km deep · 36 km away
  11. 1.84 km WSW of Cobb, California · 14386 days ago · 1 km deep · 5 km away
  12. 2.05 km WNW of Cobb, California · 14386 days ago · 3 km deep · 4 km away
  13. 1.56 km WSW of Cobb, California · 14386 days ago · 3 km deep · 3 km away
  14. 1.67 km WSW of Cobb, California · 14386 days ago · 4 km deep · 3 km away
  15. 1.62 km SSW of Sutter, California · 14385 days ago · 5 km deep · 98 km away
  16. 1.75 km SW of Cobb, California · 14385 days ago · 2 km deep · 6 km away
  17. 2.65 km WSW of Cobb, California · 14385 days ago · 1 km deep · 3 km away
  18. 1.57 km W of Cobb, California · 14385 days ago · 0 km deep · 1 km away
  19. 1.88 km WSW of Cobb, California · 14384 days ago · 3 km deep · 3 km away
  20. 1.84 km W of Cobb, California · 14384 days ago · -1 km deep · 4 km away
  21. 1.66 km W of Cobb, California · 14384 days ago · 3 km deep · 3 km away
  22. 2.35 km W of Cobb, California · 14384 days ago · 0 km deep · 3 km away
  23. 2.07 km W of Cobb, California · 14384 days ago · 1 km deep · 1 km away
  24. 1.77 km W of Cobb, California · 14384 days ago · 3 km deep · 1 km away
  25. 1.58 km W of Cobb, California · 14383 days ago · -1 km deep · 0 km away
  26. 1.52 km SSE of Calistoga, California · 14383 days ago · 2 km deep · 37 km away
  27. 1.710 km NW of Cobb, California · 14383 days ago · 0 km deep · 6 km away
  28. 2.58 km W of Cobb, California · 14383 days ago · 1 km deep · 1 km away
  29. 1.78 km W of Cobb, California · 14382 days ago · 4 km deep · 1 km away
  30. 2.04 km W of Cobb, California · 14382 days ago · 0 km deep · 4 km away
  31. 2.86 km W of Cobb, California · 14382 days ago · 3 km deep · 2 km away
  32. 1.69 km W of Cobb, California · 14381 days ago · 0 km deep · 1 km away
  33. 1.95 km WSW of Cobb, California · 14381 days ago · 1 km deep · 4 km away
  34. 1.68 km W of Cobb, California · 14381 days ago · -1 km deep · 0 km away
  35. 1.56 km W of Cobb, California · 14381 days ago · 3 km deep · 2 km away
  36. 1.65 km W of Cobb, California · 14381 days ago · -1 km deep · 3 km away
  37. 1.5Northern California · 14380 days ago · 8 km deep · 31 km away
  38. 1.86 km SSE of Cottonwood, California · 14380 days ago · 0 km deep · 80 km away
  39. 1.56 km W of Cobb, California · 14380 days ago · 4 km deep · 3 km away
  40. 1.67 km WSW of Cobb, California · 14379 days ago · 1 km deep · 3 km away
  41. 1.65 km N of Winters, California · 14379 days ago · 1 km deep · 79 km away
  42. 2.11 km NNW of Winters, California · 14379 days ago · 2 km deep · 79 km away
  43. 2.14 km W of Cobb, California · 14378 days ago · 0 km deep · 4 km away
  44. 1.86 km W of Cobb, California · 14378 days ago · 3 km deep · 2 km away
  45. 2.39 km W of Cobb, California · 14377 days ago · 0 km deep · 1 km away
  46. 1.78 km W of Cobb, California · 14377 days ago · -1 km deep · 1 km away
  47. 1.86 km W of Cobb, California · 14376 days ago · 3 km deep · 2 km away
  48. 2.09 km W of Cobb, California · 14376 days ago · 0 km deep · 1 km away
  49. 1.6Northern California · 14376 days ago · 4 km deep · 7 km away
  50. 1.85 km WSW of Cobb, California · 14376 days ago · 1 km deep · 4 km away
  51. 2.19 km SE of Sea Ranch, California · 14376 days ago · -1 km deep · 52 km away
  52. 1.8Northern California · 14376 days ago · 9 km deep · 8 km away
  53. 1.75 km SW of Cobb, California · 14376 days ago · 5 km deep · 6 km away
  54. 1.85 km SW of Cobb, California · 14376 days ago · 4 km deep · 7 km away
  55. 1.56 km WSW of Cobb, California · 14376 days ago · 3 km deep · 2 km away
  56. 2.07 km W of Cobb, California · 14375 days ago · 1 km deep · 1 km away
  57. 2.28 km WSW of Cobb, California · 14375 days ago · 2 km deep · 2 km away
  58. 1.77 km WSW of Cobb, California · 14375 days ago · 3 km deep · 3 km away
  59. 1.511 km N of Brooktrails, California · 14374 days ago · 7 km deep · 95 km away
  60. 2.07 km W of Cobb, California · 14374 days ago · 1 km deep · 2 km away

The first 60 of 177.

Before

  1. 1.74 km SW of Cobb, California · 14391 days ago · -1 km deep · 5 km away
  2. 1.918 km NE of Upper Lake, California · 14391 days ago · 8 km deep · 52 km away
  3. 1.67 km WSW of Cobb, California · 14391 days ago · 3 km deep · 4 km away
  4. 1.6Northern California · 14392 days ago · 0 km deep · 4 km away
  5. 1.85 km W of Cobb, California · 14392 days ago · 1 km deep · 3 km away
  6. 1.56 km W of Cobb, California · 14392 days ago · 0 km deep · 2 km away
  7. 1.619 km N of Upper Lake, California · 14392 days ago · 4 km deep · 58 km away
  8. 1.65 km SSW of Cobb, California · 14393 days ago · 0 km deep · 7 km away
  9. 2.04 km WNW of Potter Valley, California · 14393 days ago · 0 km deep · 65 km away
  10. 2.29 km WSW of Cobb, California · 14393 days ago · 1 km deep · 2 km away
  11. 1.74 km WSW of Cobb, California · 14393 days ago · 0 km deep · 4 km away
  12. 1.77 km WSW of Calistoga, California · 14393 days ago · 0 km deep · 33 km away
  13. 3.04 km WNW of Cobb, California · 14393 days ago · 2 km deep · 5 km away
  14. 2.012 km N of Comptche, California · 14394 days ago · 2 km deep · 92 km away
  15. 3.55 km W of Cobb, California · 14394 days ago · 4 km deep · 3 km away
  16. 1.97 km WSW of Cobb, California · 14394 days ago · -1 km deep · 2 km away
  17. 1.75 km WSW of Hopland, California · 14395 days ago · 5 km deep · 34 km away
  18. 1.55 km W of Cobb, California · 14395 days ago · 0 km deep · 3 km away
  19. 2.66 km W of Cobb, California · 14395 days ago · 3 km deep · 3 km away
  20. 2.55 km SW of Cobb, California · 14396 days ago · -1 km deep · 5 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc100250. Read Sat, Oct 3, 2026, 4:36 PM UTC.