California earthquakes

M2.0 earthquake 6 km W of Cobb, California

A magnitude 2.0 earthquake struck 6 km W of Cobb, California on Sat, Nov 7, 1987, 3:16 PM PST (23:16 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M3.2 5 km SW 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.

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The earthquake

Magnitude
2.0 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1987-11-07 23:16:52 UTC
Depth
1.5 km (0.9 mi), shallow
Epicenter
38.830° N, 122.800° 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, 0.6 km in depth
Magnitude uncertainty
±0.37
Depth from
From location
Station coverage gap
112°
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: 168 in the 60 days after this one and 116 in the 30 days before it.

After

  1. 2.26 km W of Cobb, California · 14209 days ago · 1 km deep · 1 km away
  2. 3.25 km W of Cobb, California · 14209 days ago · 0 km deep · 1 km away
  3. 1.77 km WSW of Cobb, California · 14209 days ago · 13 km deep · 5 km away
  4. 2.06 km W of Cobb, California · 14208 days ago · 1 km deep · 1 km away
  5. 1.74 km W of Calistoga, California · 14208 days ago · 3 km deep · 32 km away
  6. 2.427 km SSE of Covelo, California · 14207 days ago · 4 km deep · 87 km away
  7. 1.56 km WSW of Cobb, California · 14207 days ago · 1 km deep · 4 km away
  8. 1.56 km WSW of Cobb, California · 14206 days ago · 0 km deep · 3 km away
  9. 1.611 km ESE of Hidden Valley Lake, California · 14206 days ago · 5 km deep · 32 km away
  10. 2.17 km W of Cobb, California · 14205 days ago · 3 km deep · 2 km away
  11. 2.06 km W of Cobb, California · 14204 days ago · 1 km deep · 0 km away
  12. 3.05 km W of Cobb, California · 14204 days ago · 2 km deep · 1 km away
  13. 1.9Northern California · 14204 days ago · 0 km deep · 0 km away
  14. 1.59 km SSW of Cobb, California · 14204 days ago · 8 km deep · 11 km away
  15. 2.47 km E of Willits, California · 14203 days ago · 1 km deep · 75 km away
  16. 1.812 km SE of Middletown, California · 14203 days ago · 6 km deep · 30 km away
  17. 2.518 km NE of Potter Valley, California · 14203 days ago · 7 km deep · 67 km away
  18. 1.512 km NNW of Angwin, California · 14203 days ago · 5 km deep · 30 km away
  19. 3.16 km WSW of Cobb, California · 14202 days ago · 3 km deep · 3 km away
  20. 1.76 km W of Cobb, California · 14202 days ago · 3 km deep · 1 km away
  21. 1.66 km W of Cobb, California · 14202 days ago · 2 km deep · 2 km away
  22. 2.09 km W of Cobb, California · 14200 days ago · 1 km deep · 3 km away
  23. 1.93 km SW of Cobb, California · 14200 days ago · 1 km deep · 6 km away
  24. 1.62 km SSE of Fulton, California · 14199 days ago · 8 km deep · 39 km away
  25. 2.27 km WSW of Cobb, California · 14199 days ago · 1 km deep · 3 km away
  26. 1.85 km SSW of Cobb, California · 14196 days ago · -1 km deep · 7 km away
  27. 1.97 km W of Cobb, California · 14196 days ago · 3 km deep · 2 km away
  28. 1.97 km W of Cobb, California · 14196 days ago · 3 km deep · 2 km away
  29. 2.58 km W of Cobb, California · 14196 days ago · 1 km deep · 2 km away
  30. 1.89 km W of Cobb, California · 14196 days ago · 1 km deep · 3 km away
  31. 1.87 km W of Cobb, California · 14196 days ago · 1 km deep · 1 km away
  32. 1.66 km W of Cobb, California · 14195 days ago · 3 km deep · 1 km away
  33. 2.98 km W of Cobb, California · 14195 days ago · 1 km deep · 2 km away
  34. 2.78 km W of Cobb, California · 14195 days ago · 1 km deep · 2 km away
  35. 1.99 km W of Cobb, California · 14194 days ago · 0 km deep · 3 km away
  36. 1.94 km WSW of Cobb, California · 14194 days ago · 1 km deep · 3 km away
  37. 2.25 km NW of Montalvin, California · 14194 days ago · 5 km deep · 97 km away
  38. 2.54 km WSW of Cobb, California · 14194 days ago · 1 km deep · 4 km away
  39. 1.916 km NNE of Upper Lake, California · 14194 days ago · 4 km deep · 52 km away
  40. 2.28 km W of Cobb, California · 14194 days ago · 1 km deep · 2 km away
  41. 2.07 km W of Cobb, California · 14193 days ago · 3 km deep · 2 km away
  42. 2.05 km E of Redwood Valley, California · 14193 days ago · 7 km deep · 56 km away
  43. 1.67 km WSW of Cobb, California · 14193 days ago · 4 km deep · 4 km away
  44. 2.48 km ENE of Hidden Valley Lake, California · 14193 days ago · 10 km deep · 29 km away
  45. 1.75 km SW of Cobb, California · 14192 days ago · -1 km deep · 6 km away
  46. 1.6Northern California · 14192 days ago · 0 km deep · 6 km away
  47. 1.55 km SW of Cobb, California · 14192 days ago · -1 km deep · 6 km away
  48. 2.06 km W of Cobb, California · 14192 days ago · 3 km deep · 1 km away
  49. 1.6Northern California · 14192 days ago · 1 km deep · 1 km away
  50. 1.95 km WNW of Cobb, California · 14192 days ago · 2 km deep · 2 km away
  51. 2.110 km SW of Cloverdale, California · 14191 days ago · 5 km deep · 29 km away
  52. 1.74 km W of Cobb, California · 14191 days ago · 0 km deep · 3 km away
  53. 1.67 km WSW of Cobb, California · 14191 days ago · 4 km deep · 3 km away
  54. 2.18 km W of Cobb, California · 14190 days ago · 1 km deep · 2 km away
  55. 1.56 km WSW of Cobb, California · 14190 days ago · 0 km deep · 4 km away
  56. 1.95 km W of Cobb, California · 14190 days ago · 0 km deep · 2 km away
  57. 1.95 km W of Cobb, California · 14190 days ago · 0 km deep · 2 km away
  58. 1.613 km SSE of Laytonville, California · 14189 days ago · 5 km deep · 99 km away
  59. 1.69 km ESE of Hidden Valley Lake, California · 14189 days ago · 6 km deep · 31 km away
  60. 2.64 km WSW of Cobb, California · 14189 days ago · 1 km deep · 3 km away

The first 60 of 168.

Before

  1. 3.06 km W of Cobb, California · 14209 days ago · 0 km deep · 1 km away
  2. 1.66 km WNW of Cobb, California · 14210 days ago · 0 km deep · 2 km away
  3. 1.84 km NW of Cobb, California · 14210 days ago · -1 km deep · 4 km away
  4. 1.711 km WSW of Middletown, California · 14210 days ago · 9 km deep · 14 km away
  5. 1.86 km SSW of Cobb, California · 14210 days ago · 0 km deep · 7 km away
  6. 2.06 km W of Cobb, California · 14210 days ago · 2 km deep · 1 km away
  7. 1.74 km W of Glen Ellen, California · 14210 days ago · 2 km deep · 56 km away
  8. 1.94 km WSW of Cobb, California · 14211 days ago · 2 km deep · 3 km away
  9. 1.614 km NE of Potter Valley, California · 14211 days ago · 4 km deep · 69 km away
  10. 1.63 km W of Cobb, California · 14211 days ago · 0 km deep · 3 km away
  11. 1.74 km WSW of Cobb, California · 14211 days ago · 0 km deep · 4 km away
  12. 1.65 km WNW of Cobb, California · 14211 days ago · 1 km deep · 1 km away
  13. 1.87 km WSW of Cobb, California · 14211 days ago · 1 km deep · 3 km away
  14. 1.67 km W of Cobb, California · 14212 days ago · 3 km deep · 1 km away
  15. 1.7Northern California · 14212 days ago · 0 km deep · 2 km away
  16. 2.26 km W of Cobb, California · 14212 days ago · 3 km deep · 2 km away
  17. 1.69 km W of Cobb, California · 14213 days ago · 2 km deep · 4 km away
  18. 1.81 km SSE of Calpella, California · 14214 days ago · 3 km deep · 56 km away
  19. 1.76 km SW of Cobb, California · 14214 days ago · 0 km deep · 6 km away
  20. 1.56 km SW of Cobb, California · 14214 days ago · -1 km deep · 6 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc10085490. Read Fri, Oct 2, 2026, 7:00 PM UTC.