California earthquakes

M2.3 earthquake 4 km SE of Aromas, California

A magnitude 2.3 earthquake struck 4 km SE of Aromas, California on Sat, Oct 23, 1976, 7:22 PM PDT (02:22 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M4.6 20 km SSE of Tres Pinos, California. This one was a foreshock.

Aromas 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
2.3 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1976-10-24 02:22:33 UTC
Depth
7.3 km (4.6 mi), shallow
Epicenter
36.867° N, 121.606° 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
±0.03
Depth from
From location
Station coverage gap
60°
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: 177 in the 60 days after this one and 107 in the 30 days before it.

After

  1. 2.322 km NNE of Soledad, California · 18241 days ago · 4 km deep · 48 km away
  2. 1.99 km NE of San Juan Bautista, California · 18240 days ago · 7 km deep · 13 km away
  3. 3.134 km WSW of Three Rocks, California · 18240 days ago · 12 km deep · 96 km away
  4. 1.96 km SE of Tres Pinos, California · 18240 days ago · 10 km deep · 33 km away
  5. 2.010 km NW of Hollister, California · 18240 days ago · 3 km deep · 14 km away
  6. 2.95 km WSW of Gilroy, California · 18239 days ago · 3 km deep · 13 km away
  7. 1.86 km NE of Ridgemark, California · 18238 days ago · 4 km deep · 25 km away
  8. 2.526 km SE of Tres Pinos, California · 18238 days ago · 5 km deep · 52 km away
  9. 1.76 km NE of Ridgemark, California · 18238 days ago · 3 km deep · 26 km away
  10. 2.524 km ENE of Soledad, California · 18238 days ago · 3 km deep · 63 km away
  11. 1.89 km NW of Hollister, California · 18237 days ago · 6 km deep · 13 km away
  12. 1.717 km N of Morgan Hill, CA · 18237 days ago · 6 km deep · 46 km away
  13. 2.922 km ENE of Soledad, California · 18237 days ago · 3 km deep · 57 km away
  14. 3.124 km NE of Greenfield, California · 18236 days ago · 3 km deep · 66 km away
  15. 1.9Central California · 18236 days ago · 8 km deep · 40 km away
  16. 1.6Northern California · 18236 days ago · 7 km deep · 72 km away
  17. 1.924 km NE of Greenfield, California · 18235 days ago · 7 km deep · 66 km away
  18. 1.99 km NW of Hollister, California · 18235 days ago · 5 km deep · 13 km away
  19. 2.62 km W of Monte Sereno, California · 18235 days ago · 12 km deep · 55 km away
  20. 2.221 km NE of Soledad, California · 18234 days ago · 3 km deep · 52 km away
  21. 1.934 km NE of King City, California · 18233 days ago · 17 km deep · 87 km away
  22. 2.49 km NE of San Juan Bautista, California · 18233 days ago · 6 km deep · 12 km away
  23. 2.521 km NE of Soledad, California · 18232 days ago · 6 km deep · 53 km away
  24. 1.73 km W of Cupertino, California · 18231 days ago · 6 km deep · 65 km away
  25. 1.916 km NNE of Morgan Hill, California · 18231 days ago · 8 km deep · 45 km away
  26. 2.03 km ENE of Tres Pinos, California · 18231 days ago · 11 km deep · 30 km away
  27. 2.01 km SW of Dublin, California · 18230 days ago · 10 km deep · 96 km away
  28. 2.523 km NNE of San Lucas, California · 18230 days ago · 5 km deep · 89 km away
  29. 2.110 km NNW of Hollister, California · 18230 days ago · 3 km deep · 15 km away
  30. 2.921 km NE of Soledad, California · 18230 days ago · 9 km deep · 55 km away
  31. 3.83 km W of San Juan Bautista, California · 18230 days ago · 6 km deep · 3 km away
  32. 1.86 km S of Livermore, California · 18229 days ago · 1 km deep · 86 km away
  33. 2.21 km WNW of Cambrian Park, California · 18229 days ago · 8 km deep · 54 km away
  34. 2.323 km ENE of Soledad, California · 18229 days ago · 2 km deep · 63 km away
  35. 2.37 km S of Diablo Grande, California · 18229 days ago · 0 km deep · 59 km away
  36. 1.97 km NE of San Juan Bautista, California · 18227 days ago · 6 km deep · 11 km away
  37. 2.622 km NE of San Lucas, California · 18225 days ago · 5 km deep · 99 km away
  38. 2.522 km NE of Soledad, California · 18225 days ago · 5 km deep · 57 km away
  39. 1.56 km ENE of Interlaken, California · 18224 days ago · 8 km deep · 12 km away
  40. 1.69 km NW of Hollister, California · 18224 days ago · 8 km deep · 13 km away
  41. 3.04 km SSW of Gilroy, California · 18224 days ago · 7 km deep · 11 km away
  42. 3.013 km S of Tres Pinos, California · 18224 days ago · 4 km deep · 35 km away
  43. 2.57 km NE of San Juan Bautista, California · 18223 days ago · 7 km deep · 12 km away
  44. 2.17 km NE of San Juan Bautista, California · 18223 days ago · 5 km deep · 12 km away
  45. 1.7Central California · 18223 days ago · 5 km deep · 11 km away
  46. 2.621 km NE of Soledad, California · 18222 days ago · 4 km deep · 50 km away
  47. 1.922 km ENE of Soledad, California · 18222 days ago · 4 km deep · 59 km away
  48. 2.922 km ENE of Soledad, California · 18222 days ago · 2 km deep · 57 km away
  49. 2.48 km NE of San Juan Bautista, California · 18221 days ago · 6 km deep · 12 km away
  50. 3.05 km WSW of Gilroy, California · 18220 days ago · 4 km deep · 12 km away
  51. 2.37 km NE of San Juan Bautista, California · 18220 days ago · 5 km deep · 11 km away
  52. 2.621 km NNE of Soledad, California · 18220 days ago · 6 km deep · 47 km away
  53. 1.917 km SE of Tres Pinos, California · 18219 days ago · 7 km deep · 43 km away
  54. 2.13 km SSW of Lexington Hills, California · 18219 days ago · 13 km deep · 45 km away
  55. 2.828 km SW of South Dos Palos, California · 18219 days ago · 2 km deep · 65 km away
  56. 1.88 km ESE of East Foothills, California · 18219 days ago · 4 km deep · 55 km away
  57. 2.55 km SW of Gilroy, California · 18219 days ago · 4 km deep · 12 km away
  58. 2.74 km W of San Juan Bautista, California · 18218 days ago · 7 km deep · 2 km away
  59. 2.321 km NE of Soledad, California · 18218 days ago · 1 km deep · 53 km away
  60. 1.77 km ENE of East Foothills, California · 18218 days ago · 8 km deep · 60 km away

The first 60 of 177.

Before

  1. 3.83 km SE of Aromas, California · 18241 days ago · 8 km deep · 0 km away
  2. 3.58 km NW of Hollister, California · 18241 days ago · 7 km deep · 13 km away
  3. 1.619 km SSE of Tres Pinos, California · 18242 days ago · 5 km deep · 44 km away
  4. 2.221 km NE of Soledad, California · 18242 days ago · 3 km deep · 55 km away
  5. 2.68 km SSW of Tres Pinos, California · 18243 days ago · 2 km deep · 27 km away
  6. 2.623 km NE of San Lucas, California · 18243 days ago · 7 km deep · 92 km away
  7. 2.624 km NNE of San Lucas, California · 18244 days ago · 8 km deep · 88 km away
  8. 2.210 km SSE of Tres Pinos, California · 18244 days ago · 5 km deep · 34 km away
  9. 2.28 km NW of Hollister, California · 18244 days ago · 6 km deep · 13 km away
  10. 1.66 km SSW of Gonzales, California · 18244 days ago · 14 km deep · 48 km away
  11. 1.71 km E of Campbell, California · 18245 days ago · 3 km deep · 55 km away
  12. 2.115 km SSE of Tres Pinos, California · 18245 days ago · 6 km deep · 38 km away
  13. 1.916 km SSE of Tres Pinos, California · 18245 days ago · 5 km deep · 38 km away
  14. 2.416 km SSE of Tres Pinos, California · 18245 days ago · 5 km deep · 38 km away
  15. 3.828 km SW of South Dos Palos, California · 18245 days ago · 5 km deep · 65 km away
  16. 1.9Central California · 18245 days ago · 6 km deep · 29 km away
  17. 1.63 km SSE of Portola Valley, California · 18245 days ago · 10 km deep · 77 km away
  18. 1.63 km SSE of Portola Valley, California · 18245 days ago · 10 km deep · 77 km away
  19. 1.8Central California · 18246 days ago · 4 km deep · 61 km away
  20. 2.320 km NE of Soledad, California · 18246 days ago · 7 km deep · 53 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1032026. Read Fri, Oct 2, 2026, 9:25 PM UTC.