California earthquakes

M2.0 earthquake 2 km SSW of Colma, California

A magnitude 2.0 earthquake struck 2 km SSW of Colma, California on Thu, Oct 7, 1976, 3:16 AM PDT (10:16 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M3.4 1 km SSE of Concord, California. This one was a foreshock.

Colma 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
1976-10-07 10:16:21 UTC
Depth
4.4 km (2.7 mi), shallow
Epicenter
37.656° N, 122.473° 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, 0.3 km in depth
Magnitude uncertainty
±0.01
Depth from
From location
Station coverage gap
139°
Stations used
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 62 in the 60 days after this one and 38 in the 30 days before it.

After

  1. 1.68 km S of Livermore, California · 18256 days ago · 5 km deep · 61 km away
  2. 1.87 km NNE of Interlaken, California · 18256 days ago · 5 km deep · 98 km away
  3. 1.77 km NNE of Interlaken, California · 18255 days ago · 6 km deep · 98 km away
  4. 2.014 km E of Seven Trees, California · 18254 days ago · 5 km deep · 81 km away
  5. 2.11 km NNW of Portola Valley, California · 18254 days ago · 9 km deep · 35 km away
  6. 1.917 km NE of East Foothills, California · 18251 days ago · 7 km deep · 73 km away
  7. 1.610 km E of Seven Trees, California · 18251 days ago · 6 km deep · 77 km away
  8. 1.617 km NE of East Foothills, California · 18249 days ago · 7 km deep · 73 km away
  9. 3.41 km SSE of Concord, California · 18249 days ago · 15 km deep · 53 km away
  10. 2.47 km SSW of Calistoga, California · 18248 days ago · 7 km deep · 98 km away
  11. 1.81 km NNE of San Ramon, California · 18248 days ago · 7 km deep · 47 km away
  12. 1.61 km NNE of San Ramon, California · 18248 days ago · 8 km deep · 47 km away
  13. 2.115 km E of Seven Trees, California · 18247 days ago · 2 km deep · 82 km away
  14. 2.911 km SE of Sunol, California · 18247 days ago · 5 km deep · 62 km away
  15. 1.616 km NE of East Foothills, California · 18246 days ago · 7 km deep · 72 km away
  16. 1.820 km W of Westley, California · 18245 days ago · 0 km deep · 93 km away
  17. 1.73 km NW of Sunol, California · 18245 days ago · 3 km deep · 49 km away
  18. 1.63 km SSE of Portola Valley, California · 18245 days ago · 10 km deep · 40 km away
  19. 1.63 km SSE of Portola Valley, California · 18245 days ago · 10 km deep · 41 km away
  20. 1.71 km E of Campbell, California · 18244 days ago · 3 km deep · 62 km away
  21. 2.12 km NE of San Ramon, California · 18243 days ago · 8 km deep · 48 km away
  22. 2.12 km ENE of Berkeley, California · 18242 days ago · 9 km deep · 32 km away
  23. 2.77 km SW of Calistoga, California · 18242 days ago · 6 km deep · 98 km away
  24. 1.67 km SSW of Calistoga, California · 18239 days ago · 6 km deep · 97 km away
  25. 1.717 km N of Morgan Hill, CA · 18236 days ago · 6 km deep · 84 km away
  26. 1.6Northern California · 18235 days ago · 7 km deep · 45 km away
  27. 3.19 km S of Antioch, California · 18235 days ago · 11 km deep · 66 km away
  28. 2.62 km W of Monte Sereno, California · 18234 days ago · 12 km deep · 61 km away
  29. 1.83 km ESE of Berkeley, California · 18233 days ago · 8 km deep · 31 km away
  30. 1.73 km W of Cupertino, California · 18230 days ago · 6 km deep · 51 km away
  31. 1.916 km NNE of Morgan Hill, California · 18230 days ago · 8 km deep · 88 km away
  32. 2.64 km SSE of Concord, California · 18230 days ago · 10 km deep · 52 km away
  33. 2.01 km SW of Dublin, California · 18230 days ago · 10 km deep · 46 km away
  34. 2.22 km SSW of Danville, California · 18229 days ago · 7 km deep · 43 km away
  35. 1.86 km S of Livermore, California · 18229 days ago · 1 km deep · 63 km away
  36. 2.21 km WNW of Cambrian Park, California · 18228 days ago · 8 km deep · 63 km away
  37. 1.93 km SSW of Antioch, California · 18228 days ago · 19 km deep · 68 km away
  38. 2.113 km ESE of Suisun, California · 18226 days ago · 22 km deep · 80 km away
  39. 2.45 km SW of Kenwood, California · 18224 days ago · 7 km deep · 81 km away
  40. 2.214 km WNW of Rio Vista, California · 18221 days ago · 25 km deep · 81 km away
  41. 2.13 km SSW of Lexington Hills, California · 18218 days ago · 13 km deep · 72 km away
  42. 1.88 km ESE of East Foothills, California · 18218 days ago · 4 km deep · 74 km away
  43. 3.213 km WNW of Rio Vista, California · 18218 days ago · 19 km deep · 82 km away
  44. 2.515 km ESE of Suisun, California · 18218 days ago · 20 km deep · 81 km away
  45. 2.813 km WNW of Rio Vista, California · 18218 days ago · 19 km deep · 82 km away
  46. 1.77 km ENE of East Foothills, California · 18217 days ago · 8 km deep · 71 km away
  47. 2.320 km NE of East Foothills, California · 18217 days ago · 7 km deep · 73 km away
  48. 2.320 km NE of East Foothills, California · 18217 days ago · 7 km deep · 73 km away
  49. 2.919 km NE of East Foothills, California · 18217 days ago · 8 km deep · 73 km away
  50. 2.619 km NE of East Foothills, California · 18217 days ago · 7 km deep · 73 km away
  51. 2.319 km NE of East Foothills, California · 18217 days ago · 4 km deep · 72 km away
  52. 2.319 km NE of East Foothills, California · 18217 days ago · 7 km deep · 73 km away
  53. 2.515 km SSE of Elmira, California · 18216 days ago · 20 km deep · 82 km away
  54. 2.12 km NNE of San Ramon, California · 18215 days ago · 9 km deep · 47 km away
  55. 2.8Northern California · 18215 days ago · 9 km deep · 47 km away
  56. 2.31 km NNE of San Ramon, California · 18215 days ago · 9 km deep · 47 km away
  57. 1.81 km W of Monte Sereno, California · 18213 days ago · 11 km deep · 62 km away
  58. 1.9Northern California · 18212 days ago · 9 km deep · 79 km away
  59. 2.03 km ENE of Berkeley, California · 18205 days ago · 12 km deep · 33 km away
  60. 2.00 km ENE of Larkfield-Wikiup, California · 18201 days ago · 3 km deep · 98 km away

The first 60 of 62.

Before

  1. 1.96 km SE of Lexington Hills, California · 18257 days ago · 12 km deep · 77 km away
  2. 3.313 km S of Tracy, California · 18257 days ago · 3 km deep · 94 km away
  3. 1.65 km NE of East Foothills, California · 18258 days ago · 3 km deep · 67 km away
  4. 2.23 km SSW of Los Altos Hills, California · 18260 days ago · 6 km deep · 45 km away
  5. 2.13 km SSW of Los Altos Hills, California · 18260 days ago · 5 km deep · 45 km away
  6. 1.81 km NE of San Ramon, California · 18260 days ago · 7 km deep · 47 km away
  7. 2.17 km NNE of Interlaken, California · 18261 days ago · 6 km deep · 98 km away
  8. 2.17 km NNE of Interlaken, California · 18261 days ago · 6 km deep · 98 km away
  9. 1.713 km N of Morgan Hill, California · 18263 days ago · 7 km deep · 86 km away
  10. 2.119 km ENE of East Foothills, California · 18263 days ago · 8 km deep · 80 km away
  11. 2.33 km NE of Santa Rosa, California · 18264 days ago · 9 km deep · 91 km away
  12. 2.42 km SSE of Piedmont, California · 18265 days ago · 9 km deep · 28 km away
  13. 1.710 km SE of Livermore, California · 18266 days ago · 8 km deep · 69 km away
  14. 1.62 km NE of Monte Sereno, California · 18268 days ago · 6 km deep · 63 km away
  15. 3.03 km NE of San Ramon, California · 18269 days ago · 9 km deep · 48 km away
  16. 2.56 km NNE of Penngrove, California · 18270 days ago · 7 km deep · 78 km away
  17. 2.02 km N of Diablo, California · 18276 days ago · 7 km deep · 51 km away
  18. 2.114 km E of Seven Trees, California · 18277 days ago · 3 km deep · 81 km away
  19. 2.814 km E of Seven Trees, California · 18277 days ago · 3 km deep · 81 km away
  20. 2.06 km ESE of East Foothills, California · 18278 days ago · 0 km deep · 72 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1031817. Read Fri, Oct 2, 2026, 3:42 AM UTC.