California earthquakes

M2.1 earthquake 7 km S of Sunol, California

A magnitude 2.1 earthquake struck 7 km S of Sunol, California on Sun, Aug 26, 1984, 6:20 PM PDT (01:20 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M4.4 11 km ESE of East Foothills, 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.

Open the live map with earthquakes

The earthquake

Magnitude
2.1 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1984-08-27 01:20:57 UTC
Depth
7.5 km (4.6 mi), shallow
Epicenter
37.532° N, 121.904° 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 0.1 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
36°
Stations used
55

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 139 in the 60 days after this one and 80 in the 30 days before it.

After

  1. 1.513 km N of Pittsburg, California · 15376 days ago · 19 km deep · 69 km away
  2. 2.58 km N of East Foothills, California · 15376 days ago · 2 km deep · 13 km away
  3. 1.911 km N of Pittsburg, California · 15376 days ago · 21 km deep · 66 km away
  4. 1.923 km WSW of Volta, California · 15376 days ago · 0 km deep · 86 km away
  5. 1.613 km ESE of East Foothills, California · 15374 days ago · 7 km deep · 30 km away
  6. 2.113 km E of East Foothills, California · 15373 days ago · 6 km deep · 28 km away
  7. 1.74 km NNE of Morgan Hill, California · 15373 days ago · 2 km deep · 47 km away
  8. 2.613 km N of Morgan Hill, California · 15372 days ago · 5 km deep · 39 km away
  9. 2.34 km WNW of Lucas Valley-Marinwood, California · 15372 days ago · 3 km deep · 86 km away
  10. 2.713 km N of Morgan Hill, California · 15371 days ago · 5 km deep · 39 km away
  11. 2.412 km ESE of East Foothills, California · 15371 days ago · 8 km deep · 30 km away
  12. 2.617 km NNE of Morgan Hill, California · 15370 days ago · 3 km deep · 39 km away
  13. 2.017 km NNE of Morgan Hill, California · 15370 days ago · 3 km deep · 39 km away
  14. 1.79 km NNE of East Foothills, California · 15369 days ago · 7 km deep · 14 km away
  15. 1.97 km SW of Gilroy, California · 15369 days ago · 6 km deep · 68 km away
  16. 1.59 km NE of San Martin, California · 15369 days ago · 5 km deep · 52 km away
  17. 2.615 km NNE of Morgan Hill, California · 15369 days ago · 4 km deep · 41 km away
  18. 1.813 km ESE of Alum Rock, California · 15369 days ago · 7 km deep · 31 km away
  19. 1.913 km N of Morgan Hill, California · 15368 days ago · 5 km deep · 39 km away
  20. 3.413 km N of Morgan Hill, California · 15368 days ago · 6 km deep · 39 km away
  21. 1.713 km N of Morgan Hill, California · 15366 days ago · 4 km deep · 40 km away
  22. 2.716 km E of Seven Trees, California · 15366 days ago · 8 km deep · 35 km away
  23. 2.78 km ENE of Morgan Hill, California · 15366 days ago · 2 km deep · 51 km away
  24. 2.510 km SE of San Juan Bautista, California · 15365 days ago · 6 km deep · 93 km away
  25. 2.26 km WSW of Gilroy, California · 15365 days ago · 3 km deep · 66 km away
  26. 2.04 km SSE of San Juan Bautista, California · 15365 days ago · 6 km deep · 87 km away
  27. 1.79 km NNE of East Foothills, California · 15363 days ago · 6 km deep · 14 km away
  28. 2.32 km NNE of Piedmont, California · 15362 days ago · 10 km deep · 45 km away
  29. 2.115 km E of Seven Trees, California · 15362 days ago · 9 km deep · 35 km away
  30. 2.5Northern California · 15362 days ago · 5 km deep · 35 km away
  31. 1.915 km E of Seven Trees, California · 15362 days ago · 4 km deep · 35 km away
  32. 2.57 km NNE of Interlaken, California · 15362 days ago · 10 km deep · 59 km away
  33. 1.93 km N of Monte Sereno, California · 15361 days ago · 7 km deep · 31 km away
  34. 1.915 km E of Seven Trees, California · 15361 days ago · 5 km deep · 34 km away
  35. 1.515 km E of Seven Trees, California · 15361 days ago · 6 km deep · 34 km away
  36. 2.24 km SSW of Green Valley, California · 15360 days ago · 6 km deep · 80 km away
  37. 1.62 km E of North Gate, California · 15360 days ago · 10 km deep · 42 km away
  38. 2.111 km ESE of East Foothills, California · 15360 days ago · 5 km deep · 28 km away
  39. 1.813 km ESE of East Foothills, California · 15359 days ago · 7 km deep · 30 km away
  40. 1.89 km ESE of East Foothills, California · 15359 days ago · 7 km deep · 26 km away
  41. 2.49 km ESE of East Foothills, California · 15359 days ago · 7 km deep · 26 km away
  42. 2.09 km ESE of East Foothills, California · 15359 days ago · 8 km deep · 27 km away
  43. 1.614 km N of Morgan Hill, California · 15359 days ago · 5 km deep · 38 km away
  44. 1.612 km NE of Milpitas, California · 15359 days ago · 8 km deep · 9 km away
  45. 1.617 km WNW of Diablo Grande, California · 15358 days ago · 4 km deep · 40 km away
  46. 1.69 km NNE of East Foothills, California · 15358 days ago · 7 km deep · 14 km away
  47. 1.914 km ESE of East Foothills, California · 15358 days ago · 0 km deep · 30 km away
  48. 2.24 km W of Vallejo, California · 15358 days ago · 8 km deep · 73 km away
  49. 1.916 km E of Seven Trees, California · 15357 days ago · 4 km deep · 36 km away
  50. 1.7Northern California · 15356 days ago · 4 km deep · 30 km away
  51. 1.713 km N of Morgan Hill, California · 15355 days ago · 5 km deep · 39 km away
  52. 1.85 km NNE of Tres Pinos, California · 15354 days ago · 4 km deep · 94 km away
  53. 2.53 km E of Berkeley, California · 15353 days ago · 9 km deep · 48 km away
  54. 2.111 km NNE of Morgan Hill, California · 15353 days ago · 5 km deep · 41 km away
  55. 1.710 km NE of Gilroy, California · 15352 days ago · 8 km deep · 62 km away
  56. 1.57 km N of Morgan Hill, California · 15350 days ago · 3 km deep · 44 km away
  57. 2.110 km N of Pittsburg, California · 15349 days ago · 20 km deep · 65 km away
  58. 1.614 km N of Morgan Hill, California · 15349 days ago · 5 km deep · 38 km away
  59. 2.39 km NW of Hollister, California · 15349 days ago · 4 km deep · 78 km away
  60. 1.617 km NNE of Morgan Hill, California · 15349 days ago · 2 km deep · 39 km away

The first 60 of 139.

Before

  1. 1.88 km ENE of Morgan Hill, California · 15377 days ago · 2 km deep · 51 km away
  2. 2.213 km N of Morgan Hill, California · 15380 days ago · 5 km deep · 39 km away
  3. 3.613 km N of Morgan Hill, California · 15380 days ago · 5 km deep · 39 km away
  4. 1.86 km SSW of Antioch, California · 15380 days ago · 5 km deep · 47 km away
  5. 2.911 km NNE of Morgan Hill, California · 15382 days ago · 9 km deep · 43 km away
  6. 1.64 km SW of Tres Pinos, California · 15382 days ago · 4 km deep · 98 km away
  7. 1.610 km NNE of Morgan Hill, California · 15382 days ago · 3 km deep · 43 km away
  8. 2.415 km N of Morgan Hill, California · 15382 days ago · 8 km deep · 36 km away
  9. 1.717 km NNE of Morgan Hill, California · 15384 days ago · 2 km deep · 39 km away
  10. 1.614 km E of Seven Trees, California · 15384 days ago · 6 km deep · 33 km away
  11. 3.012 km N of Morgan Hill, California · 15385 days ago · 5 km deep · 41 km away
  12. 2.412 km N of Morgan Hill, California · 15385 days ago · 4 km deep · 40 km away
  13. 1.59 km NNE of Morgan Hill, California · 15385 days ago · 3 km deep · 45 km away
  14. 1.614 km N of Morgan Hill, California · 15386 days ago · 5 km deep · 38 km away
  15. 1.812 km N of Morgan Hill, California · 15387 days ago · 6 km deep · 40 km away
  16. 1.714 km N of Morgan Hill, California · 15387 days ago · 4 km deep · 38 km away
  17. 2.14 km E of East Foothills, California · 15387 days ago · 1 km deep · 21 km away
  18. 2.08 km ENE of Morgan Hill, California · 15387 days ago · 3 km deep · 51 km away
  19. 3.614 km N of Morgan Hill, California · 15387 days ago · 6 km deep · 38 km away
  20. 2.20 km WNW of Hollister, California · 15387 days ago · 8 km deep · 87 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc26381. Read Fri, Oct 2, 2026, 2:17 PM UTC.