California earthquakes

M2.1 earthquake 10 km SE of Sunol, California

A magnitude 2.1 earthquake struck 10 km SE of Sunol, California on Wed, Dec 22, 1976, 9:19 PM PST (05:19 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.3 5 km NNE of Orinda, California. This one was a foreshock.

Sunol 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
2.1 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1976-12-23 05:19:22 UTC
Depth
6.0 km (3.8 mi), shallow
Epicenter
37.534° N, 121.794° 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
84°
Stations used
28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 178 in the 60 days after this one and 66 in the 30 days before it.

After

  1. 1.611 km NNW of Hollister, California · 18180 days ago · 6 km deep · 72 km away
  2. 2.18 km NW of Hollister, California · 18179 days ago · 7 km deep · 75 km away
  3. 1.611 km NNE of Hollister, California · 18179 days ago · 11 km deep · 78 km away
  4. 1.85 km SW of Gilroy, California · 18178 days ago · 3 km deep · 65 km away
  5. 2.812 km N of Morgan Hill, California · 18177 days ago · 5 km deep · 36 km away
  6. 1.68 km NE of San Juan Bautista, California · 18176 days ago · 5 km deep · 75 km away
  7. 1.79 km NE of San Martin, California · 18176 days ago · 8 km deep · 49 km away
  8. 1.69 km N of East Foothills, California · 18175 days ago · 7 km deep · 8 km away
  9. 2.22 km WSW of San Juan Bautista, California · 18175 days ago · 4 km deep · 80 km away
  10. 2.74 km SW of Ridgemark, California · 18175 days ago · 8 km deep · 91 km away
  11. 1.65 km NNE of Corralitos, California · 18175 days ago · 11 km deep · 56 km away
  12. 1.87 km E of Interlaken, California · 18174 days ago · 4 km deep · 65 km away
  13. 2.05 km SSW of Gilroy, California · 18172 days ago · 4 km deep · 66 km away
  14. 2.217 km NE of East Foothills, California · 18172 days ago · 7 km deep · 11 km away
  15. 3.6Northern California · 18171 days ago · 8 km deep · 61 km away
  16. 1.78 km ENE of Gilroy, California · 18171 days ago · 7 km deep · 61 km away
  17. 1.58 km ENE of Gilroy, California · 18171 days ago · 8 km deep · 61 km away
  18. 2.2Central California · 18170 days ago · 10 km deep · 63 km away
  19. 3.21 km ENE of Tres Pinos, California · 18170 days ago · 8 km deep · 93 km away
  20. 2.816 km N of Morgan Hill, California · 18169 days ago · 6 km deep · 31 km away
  21. 1.816 km N of Morgan Hill, California · 18169 days ago · 6 km deep · 31 km away
  22. 1.63 km SW of Hollister, California · 18169 days ago · 6 km deep · 84 km away
  23. 2.117 km WNW of Davenport, California · 18169 days ago · 15 km deep · 72 km away
  24. 2.44 km SE of Piedmont, California · 18168 days ago · 11 km deep · 46 km away
  25. 2.01 km ENE of Hayward, California · 18168 days ago · 7 km deep · 29 km away
  26. 3.62km ESE of Pasatiempo, CA · 18167 days ago · 6 km deep · 62 km away
  27. 2.05 km SSW of Gilroy, California · 18166 days ago · 4 km deep · 66 km away
  28. 1.62 km NNE of Corralitos, California · 18166 days ago · 12 km deep · 58 km away
  29. 1.68 km NW of Hollister, California · 18165 days ago · 7 km deep · 75 km away
  30. 2.04 km NNE of Orinda, California · 18165 days ago · 10 km deep · 54 km away
  31. 3.04 km NW of Lafayette, California · 18165 days ago · 13 km deep · 53 km away
  32. 3.04 km NNE of Orinda, California · 18165 days ago · 11 km deep · 54 km away
  33. 4.05 km NNE of Orinda, California · 18165 days ago · 14 km deep · 54 km away
  34. 1.75 km NNE of Orinda, California · 18165 days ago · 11 km deep · 54 km away
  35. 2.24 km NW of Lafayette, California · 18165 days ago · 13 km deep · 52 km away
  36. 4.35 km NNE of Orinda, California · 18165 days ago · 12 km deep · 54 km away
  37. 2.85 km N of Orinda, California · 18165 days ago · 10 km deep · 55 km away
  38. 3.85 km N of Orinda, California · 18165 days ago · 11 km deep · 55 km away
  39. 3.35 km NNE of Orinda, California · 18165 days ago · 10 km deep · 55 km away
  40. 2.25 km NNE of Orinda, California · 18165 days ago · 10 km deep · 54 km away
  41. 3.36 km NNW of Lafayette, California · 18165 days ago · 11 km deep · 55 km away
  42. 2.76 km NNE of Orinda, California · 18165 days ago · 8 km deep · 55 km away
  43. 2.76 km NNE of Orinda, California · 18165 days ago · 9 km deep · 55 km away
  44. 2.06 km N of Orinda, California · 18165 days ago · 10 km deep · 55 km away
  45. 2.16 km NNE of Orinda, California · 18165 days ago · 9 km deep · 55 km away
  46. 1.65 km NW of Lafayette, California · 18165 days ago · 10 km deep · 54 km away
  47. 1.56 km NNE of Orinda, California · 18165 days ago · 10 km deep · 55 km away
  48. 3.05 km NNE of Orinda, California · 18165 days ago · 10 km deep · 54 km away
  49. 2.16 km NNE of Orinda, California · 18165 days ago · 11 km deep · 55 km away
  50. 2.65 km NNE of Orinda, California · 18165 days ago · 11 km deep · 54 km away
  51. 1.95 km NNE of Orinda, California · 18165 days ago · 11 km deep · 54 km away
  52. 1.95 km NNE of Orinda, California · 18165 days ago · 9 km deep · 55 km away
  53. 2.16 km NNE of Orinda, California · 18165 days ago · 10 km deep · 55 km away
  54. 1.66 km NNE of Orinda, California · 18165 days ago · 9 km deep · 55 km away
  55. 1.54 km NNE of Orinda, California · 18165 days ago · 9 km deep · 54 km away
  56. 2.24 km NW of Lafayette, California · 18165 days ago · 12 km deep · 53 km away
  57. 1.74 km NNE of Orinda, California · 18165 days ago · 9 km deep · 54 km away
  58. 1.65 km NNE of Orinda, California · 18165 days ago · 11 km deep · 54 km away
  59. 1.77 km NNE of Orinda, California · 18165 days ago · 12 km deep · 56 km away
  60. 1.64 km NNE of Orinda, California · 18164 days ago · 11 km deep · 53 km away

The first 60 of 178.

Before

  1. 1.85 km ENE of Interlaken, California · 18181 days ago · 8 km deep · 64 km away
  2. 2.01 km WNW of Orinda, California · 18182 days ago · 8 km deep · 52 km away
  3. 1.56 km SE of San Juan Bautista, California · 18183 days ago · 5 km deep · 86 km away
  4. 2.01 km WSW of Hollister, California · 18184 days ago · 8 km deep · 83 km away
  5. 1.97 km NE of San Juan Bautista, California · 18185 days ago · 7 km deep · 77 km away
  6. 2.09 km NW of Hollister, California · 18185 days ago · 0 km deep · 74 km away
  7. 1.76 km ENE of Interlaken, California · 18186 days ago · 9 km deep · 64 km away
  8. 2.66 km ENE of Interlaken, California · 18186 days ago · 10 km deep · 64 km away
  9. 1.69 km NW of Hollister, California · 18187 days ago · 3 km deep · 74 km away
  10. 1.810 km NNE of Morgan Hill, California · 18187 days ago · 3 km deep · 38 km away
  11. 2.25 km SE of Tres Pinos, California · 18189 days ago · 9 km deep · 97 km away
  12. 2.810 km SE of San Juan Bautista, California · 18189 days ago · 7 km deep · 89 km away
  13. 2.46 km NE of Morgan Hill, California · 18189 days ago · 3 km deep · 44 km away
  14. 2.08 km NE of Interlaken, California · 18190 days ago · 8 km deep · 58 km away
  15. 1.917 km ESE of East Foothills, California · 18190 days ago · 6 km deep · 27 km away
  16. 1.68 km NE of Interlaken, California · 18190 days ago · 8 km deep · 59 km away
  17. 1.77 km ESE of East Foothills, California · 18191 days ago · 10 km deep · 19 km away
  18. 2.87 km E of East Foothills, California · 18191 days ago · 9 km deep · 17 km away
  19. 2.36 km E of East Foothills, California · 18191 days ago · 7 km deep · 17 km away
  20. 3.33 km WSW of San Juan Bautista, California · 18191 days ago · 9 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1032924. Read Fri, Oct 2, 2026, 11:57 PM UTC.