California earthquakes

M3.1 earthquake 1 km ENE of Pittsburg, California

A magnitude 3.1 earthquake struck 1 km ENE of Pittsburg, California on Mon, Nov 2, 1981, 7:03 AM PST (15:03 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M3.7 2 km WNW of Portola Valley, California. This one was a foreshock.

Pittsburg 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
3.1 (md), minor
Local time
UTC
1981-11-02 15:03:04 UTC
Depth
15.3 km (9.5 mi), shallow
Epicenter
38.031° N, 121.873° 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
±0.20
Depth from
From location
Station coverage gap
97°
Stations used
46

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 59 in the 60 days after this one and 34 in the 30 days before it.

After

  1. 2.33 km S of Fairview, California · 16395 days ago · 4 km deep · 45 km away
  2. 1.73 km S of Green Valley, California · 16395 days ago · 9 km deep · 33 km away
  3. 2.28 km ENE of Milpitas, California · 16393 days ago · 7 km deep · 63 km away
  4. 2.27 km E of East Foothills, California · 16391 days ago · 7 km deep · 73 km away
  5. 2.33 km SW of Antioch, California · 16386 days ago · 18 km deep · 6 km away
  6. 1.93 km SW of Antioch, California · 16386 days ago · 19 km deep · 6 km away
  7. 1.516 km SE of Livermore, California · 16384 days ago · 9 km deep · 56 km away
  8. 1.83 km SE of Pacifica, California · 16380 days ago · 9 km deep · 71 km away
  9. 2.14 km NW of Mountain House, California · 16380 days ago · 13 km deep · 35 km away
  10. 2.07 km N of Pittsburg, California · 16379 days ago · 18 km deep · 7 km away
  11. 1.63 km SW of Loyola, California · 16377 days ago · 6 km deep · 81 km away
  12. 1.95 km WSW of Kenwood, California · 16377 days ago · 9 km deep · 75 km away
  13. 1.9Northern California · 16377 days ago · 16 km deep · 22 km away
  14. 1.511 km SW of Brentwood, California · 16375 days ago · 13 km deep · 21 km away
  15. 1.85 km N of San Leandro, California · 16375 days ago · 11 km deep · 39 km away
  16. 1.67 km NE of East Foothills, California · 16373 days ago · 10 km deep · 67 km away
  17. 1.77 km E of East Foothills, California · 16369 days ago · 9 km deep · 73 km away
  18. 2.39 km ESE of East Foothills, California · 16368 days ago · 7 km deep · 76 km away
  19. 1.89 km ESE of East Foothills, California · 16368 days ago · 7 km deep · 76 km away
  20. 1.65 km NW of Moskowite Corner, California · 16367 days ago · 11 km deep · 59 km away
  21. 1.59 km NE of Morgan Hill, California · 16366 days ago · 5 km deep · 97 km away
  22. 1.93 km WNW of American Canyon, California · 16366 days ago · 6 km deep · 41 km away
  23. 2.213 km NW of Moskowite Corner, California · 16361 days ago · 9 km deep · 67 km away
  24. 2.07 km S of Calistoga, California · 16361 days ago · 7 km deep · 81 km away
  25. 1.83 km NE of Graton, California · 16361 days ago · 4 km deep · 97 km away
  26. 2.33 km NNW of Larkfield-Wikiup, California · 16360 days ago · 5 km deep · 97 km away
  27. 1.716 km E of East Foothills, California · 16359 days ago · 6 km deep · 75 km away
  28. 1.88 km ESE of Tracy, California · 16359 days ago · 78 km deep · 59 km away
  29. 1.71 km SSE of North Gate, California · 16358 days ago · 10 km deep · 19 km away
  30. 1.7Northern California · 16357 days ago · 10 km deep · 19 km away
  31. 3.72 km WNW of Portola Valley, California · 16355 days ago · 8 km deep · 79 km away
  32. 2.82 km WNW of Portola Valley, California · 16355 days ago · 7 km deep · 79 km away
  33. 2.02 km WNW of Portola Valley, California · 16355 days ago · 7 km deep · 79 km away
  34. 2.45 km E of Penngrove, California · 16354 days ago · 8 km deep · 71 km away
  35. 2.22 km ENE of Knightsen, California · 16352 days ago · 14 km deep · 21 km away
  36. 2.516 km E of East Foothills, California · 16350 days ago · 6 km deep · 76 km away
  37. 3.14 km E of Penngrove, California · 16349 days ago · 8 km deep · 71 km away
  38. 2.15 km E of Penngrove, California · 16349 days ago · 6 km deep · 71 km away
  39. 1.55 km ESE of Roseland, California · 16348 days ago · 10 km deep · 81 km away
  40. 1.72 km WNW of Portola Valley, California · 16348 days ago · 7 km deep · 79 km away
  41. 2.64 km E of Penngrove, California · 16347 days ago · 4 km deep · 72 km away
  42. 3.04 km E of Penngrove, California · 16347 days ago · 9 km deep · 72 km away
  43. 2.44 km E of Penngrove, California · 16347 days ago · 5 km deep · 72 km away
  44. 3.14 km E of Penngrove, California · 16347 days ago · 8 km deep · 72 km away
  45. 3.25 km E of Penngrove, California · 16347 days ago · 7 km deep · 71 km away
  46. 1.65 km E of Penngrove, California · 16347 days ago · 2 km deep · 71 km away
  47. 2.54 km ESE of Penngrove, California · 16347 days ago · 0 km deep · 71 km away
  48. 1.94 km E of Penngrove, California · 16347 days ago · 0 km deep · 71 km away
  49. 1.94 km E of Penngrove, California · 16347 days ago · 0 km deep · 71 km away
  50. 1.85 km E of Penngrove, California · 16346 days ago · 1 km deep · 71 km away
  51. 1.68 km ESE of East Foothills, California · 16346 days ago · 6 km deep · 75 km away
  52. 1.64 km E of Penngrove, California · 16343 days ago · 0 km deep · 72 km away
  53. 1.65 km E of Penngrove, California · 16343 days ago · 2 km deep · 71 km away
  54. 1.59 km SW of Calistoga, California · 16343 days ago · 4 km deep · 86 km away
  55. 2.82 km ENE of Pacifica, California · 16342 days ago · 12 km deep · 69 km away
  56. 1.74 km E of Penngrove, California · 16340 days ago · 2 km deep · 71 km away
  57. 1.64 km E of Penngrove, California · 16340 days ago · 0 km deep · 71 km away
  58. 1.83 km WSW of Moskowite Corner, California · 16339 days ago · 12 km deep · 55 km away
  59. 2.17 km NNW of Pittsburg, California · 16335 days ago · 19 km deep · 8 km away

Before

  1. 1.93 km S of Fairview, California · 16396 days ago · 4 km deep · 46 km away
  2. 2.020 km ESE of East Foothills, California · 16397 days ago · 6 km deep · 82 km away
  3. 2.518 km N of Moskowite Corner, California · 16399 days ago · 8 km deep · 71 km away
  4. 2.417 km N of Moskowite Corner, California · 16399 days ago · 9 km deep · 70 km away
  5. 1.62 km SE of Ladera, California · 16399 days ago · 2 km deep · 76 km away
  6. 2.02 km E of Ladera, California · 16400 days ago · 4 km deep · 75 km away
  7. 1.818 km N of Moskowite Corner, California · 16400 days ago · 8 km deep · 70 km away
  8. 1.85 km WNW of Broadmoor, California · 16401 days ago · 7 km deep · 69 km away
  9. 2.38 km ESE of East Foothills, California · 16401 days ago · 8 km deep · 76 km away
  10. 2.211 km ENE of Blackhawk, California · 16401 days ago · 16 km deep · 22 km away
  11. 2.87 km S of Sunol, California · 16403 days ago · 9 km deep · 56 km away
  12. 1.712 km SE of Livermore, California · 16403 days ago · 6 km deep · 52 km away
  13. 2.32 km S of Fairview, California · 16403 days ago · 6 km deep · 45 km away
  14. 1.63 km ENE of Grayson, California · 16404 days ago · -1 km deep · 81 km away
  15. 2.710 km ESE of East Foothills, California · 16405 days ago · 8 km deep · 78 km away
  16. 2.310 km ESE of East Foothills, California · 16405 days ago · 8 km deep · 78 km away
  17. 1.715 km NE of Morgan Hill, California · 16405 days ago · 7 km deep · 93 km away
  18. 1.72 km NE of San Leandro, California · 16405 days ago · 3 km deep · 40 km away
  19. 2.714 km E of Seven Trees, California · 16407 days ago · 7 km deep · 82 km away
  20. 2.03 km SSE of Brentwood, California · 16411 days ago · 2 km deep · 23 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1069140. Read Tue, Sep 22, 2026, 2:35 PM UTC.