California earthquakes

M2.0 earthquake 12 km SW of Byron, California

A magnitude 2.0 earthquake struck 12 km SW of Byron, California on Sat, Jan 2, 1982, 6:05 PM PST (02:05 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M2.0 4 km E of Penngrove, California. This one was a foreshock.

Byron 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), micro
Local time
UTC
1982-01-03 02:05:12 UTC
Depth
14.8 km (9.2 mi), shallow
Epicenter
37.800° N, 121.753° 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 0.4 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.25
Depth from
From location
Station coverage gap
92°
Stations used
26

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 89 in the 60 days after this one and 49 in the 30 days before it.

After

  1. 1.64 km ENE of Lompico, California · 16333 days ago · 7 km deep · 79 km away
  2. 2.04 km E of Penngrove, California · 16331 days ago · 5 km deep · 94 km away
  3. 2.54 km SW of Rutherford, California · 16330 days ago · 8 km deep · 94 km away
  4. 1.79 km NE of San Martin, California · 16330 days ago · 6 km deep · 74 km away
  5. 2.35 km E of Penngrove, California · 16330 days ago · 6 km deep · 93 km away
  6. 2.217 km E of East Foothills, California · 16328 days ago · 6 km deep · 48 km away
  7. 2.17 km E of East Foothills, California · 16328 days ago · 8 km deep · 47 km away
  8. 1.84 km E of Penngrove, California · 16327 days ago · 0 km deep · 94 km away
  9. 2.54 km E of Penngrove, California · 16327 days ago · 6 km deep · 94 km away
  10. 1.75 km E of Penngrove, California · 16327 days ago · 5 km deep · 93 km away
  11. 2.12 km SSE of Concord, California · 16327 days ago · 12 km deep · 29 km away
  12. 2.45 km E of Penngrove, California · 16327 days ago · 6 km deep · 93 km away
  13. 2.48 km WNW of Montara, California · 16326 days ago · 17 km deep · 79 km away
  14. 2.516 km ENE of East Foothills, California · 16325 days ago · 3 km deep · 44 km away
  15. 2.39 km NE of Gilroy, California · 16325 days ago · 9 km deep · 85 km away
  16. 1.710 km ENE of Blackhawk, California · 16325 days ago · 9 km deep · 7 km away
  17. 1.910 km ENE of Blackhawk, California · 16324 days ago · 4 km deep · 9 km away
  18. 1.73 km S of Clayton, California · 16322 days ago · 3 km deep · 20 km away
  19. 2.12 km SSW of Pittsburg, California · 16322 days ago · 16 km deep · 26 km away
  20. 1.83 km SW of North Richmond, California · 16322 days ago · 5 km deep · 58 km away
  21. 1.75 km NNE of Dogtown, California · 16320 days ago · 0 km deep · 79 km away
  22. 2.21 km ESE of Pittsburg, California · 16319 days ago · 17 km deep · 27 km away
  23. 3.03 km E of Berkeley, California · 16318 days ago · 6 km deep · 43 km away
  24. 2.210 km NNW of Hollister, California · 16316 days ago · 4 km deep · 100 km away
  25. 1.71 km SSE of Manteca, California · 16315 days ago · 18 km deep · 48 km away
  26. 2.01 km SE of Fairfax, California · 16313 days ago · 5 km deep · 75 km away
  27. 2.03 km E of Berkeley, California · 16312 days ago · 10 km deep · 43 km away
  28. 2.14 km WSW of Antioch, California · 16311 days ago · 15 km deep · 23 km away
  29. 2.13 km SSE of Pittsburg, California · 16311 days ago · 6 km deep · 24 km away
  30. 2.34 km NNE of Benicia, California · 16311 days ago · 5 km deep · 46 km away
  31. 1.79 km SSW of Lathrop, California · 16311 days ago · 6 km deep · 39 km away
  32. 1.714 km NE of East Foothills, California · 16310 days ago · 5 km deep · 37 km away
  33. 1.79 km NE of San Martin, California · 16309 days ago · 8 km deep · 75 km away
  34. 3.0Northern California · 16309 days ago · 12 km deep · 88 km away
  35. 1.7Northern California · 16309 days ago · 11 km deep · 87 km away
  36. 2.514 km NE of East Foothills, California · 16308 days ago · 4 km deep · 37 km away
  37. 1.617 km SSW of Bolinas, California · 16306 days ago · 1 km deep · 86 km away
  38. 1.612 km NNE of Morgan Hill, California · 16306 days ago · 6 km deep · 64 km away
  39. 2.61 km SSE of Pittsburg, California · 16306 days ago · 17 km deep · 27 km away
  40. 1.90 km E of Pittsburg, California · 16305 days ago · 16 km deep · 28 km away
  41. 1.79 km NE of Gilroy, California · 16304 days ago · 8 km deep · 85 km away
  42. 2.06 km SW of Moraga, California · 16304 days ago · 9 km deep · 37 km away
  43. 2.41 km S of Pittsburg, California · 16304 days ago · 17 km deep · 27 km away
  44. 1.86 km E of East Foothills, California · 16302 days ago · 6 km deep · 46 km away
  45. 1.63 km NNW of Elmira, California · 16302 days ago · 4 km deep · 66 km away
  46. 2.44 km E of Allendale, California · 16300 days ago · 11 km deep · 74 km away
  47. 1.73 km SE of North Gate, California · 16300 days ago · 12 km deep · 21 km away
  48. 1.76 km E of Rohnert Park, California · 16299 days ago · 6 km deep · 98 km away
  49. 1.68 km ESE of East Foothills, California · 16299 days ago · 5 km deep · 49 km away
  50. 1.93 km NE of Kenwood, California · 16298 days ago · 8 km deep · 97 km away
  51. 2.313 km NE of Morgan Hill, California · 16298 days ago · 8 km deep · 68 km away
  52. 1.911 km E of Blackhawk, California · 16298 days ago · 9 km deep · 4 km away
  53. 1.84 km NNE of Dixon, California · 16297 days ago · 3 km deep · 76 km away
  54. 1.95 km E of Dixon, California · 16297 days ago · 25 km deep · 71 km away
  55. 1.98 km ENE of Morgan Hill, California · 16297 days ago · 4 km deep · 73 km away
  56. 1.80 km SE of Concord, California · 16296 days ago · 9 km deep · 31 km away
  57. 1.918 km E of East Foothills, California · 16296 days ago · 4 km deep · 50 km away
  58. 2.48 km ENE of Patterson, California · 16295 days ago · 12 km deep · 71 km away
  59. 1.75 km WSW of Gilroy, California · 16295 days ago · 7 km deep · 91 km away
  60. 2.01 km NNE of Clayton, California · 16294 days ago · 3 km deep · 23 km away

The first 60 of 89.

Before

  1. 2.38 km ENE of Patterson, California · 16334 days ago · 10 km deep · 71 km away
  2. 2.17 km NNW of Pittsburg, California · 16335 days ago · 19 km deep · 35 km away
  3. 1.83 km WSW of Moskowite Corner, California · 16339 days ago · 12 km deep · 82 km away
  4. 1.64 km E of Penngrove, California · 16340 days ago · 0 km deep · 94 km away
  5. 1.74 km E of Penngrove, California · 16340 days ago · 2 km deep · 93 km away
  6. 1.68 km NNE of Interlaken, California · 16341 days ago · 10 km deep · 87 km away
  7. 1.85 km SW of Gilroy, California · 16341 days ago · 3 km deep · 93 km away
  8. 2.82 km ENE of Pacifica, California · 16342 days ago · 12 km deep · 65 km away
  9. 1.65 km E of Penngrove, California · 16344 days ago · 2 km deep · 94 km away
  10. 1.64 km E of Penngrove, California · 16344 days ago · 0 km deep · 94 km away
  11. 2.09 km NNE of Interlaken, California · 16344 days ago · 7 km deep · 86 km away
  12. 1.8Central California · 16346 days ago · 3 km deep · 91 km away
  13. 1.68 km ESE of East Foothills, California · 16346 days ago · 6 km deep · 49 km away
  14. 1.77 km NE of Aromas, California · 16347 days ago · 6 km deep · 98 km away
  15. 1.85 km E of Penngrove, California · 16347 days ago · 1 km deep · 94 km away
  16. 1.94 km E of Penngrove, California · 16347 days ago · 0 km deep · 94 km away
  17. 1.94 km E of Penngrove, California · 16347 days ago · 0 km deep · 93 km away
  18. 2.54 km ESE of Penngrove, California · 16347 days ago · 0 km deep · 93 km away
  19. 1.65 km E of Penngrove, California · 16347 days ago · 2 km deep · 93 km away
  20. 3.25 km E of Penngrove, California · 16347 days ago · 7 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1070911. Read Tue, Sep 22, 2026, 8:23 PM UTC.