California earthquakes

M1.8 earthquake 6 km ENE of Sunol, California

A magnitude 1.8 earthquake struck 6 km ENE of Sunol, California on Wed, Jun 15, 1983, 10:02 PM PDT (05:02 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M3.4 7 km WSW of Gilroy, 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
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1983-06-16 05:02:17 UTC
Depth
13.0 km (8.1 mi), shallow
Epicenter
37.620° N, 121.826° 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, 0.5 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
78°
Stations used
24

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 96 in the 60 days after this one and 38 in the 30 days before it.

After

  1. 1.910 km S of Muir Beach, California · 15813 days ago · 11 km deep · 67 km away
  2. 1.6Northern California · 15813 days ago · 2 km deep · 16 km away
  3. 2.016 km SE of Livermore, CA · 15813 days ago · 2 km deep · 15 km away
  4. 2.011 km ENE of Morgan Hill, California · 15813 days ago · 4 km deep · 56 km away
  5. 2.416 km NE of East Foothills, California · 15812 days ago · 6 km deep · 19 km away
  6. 1.61 km W of Pleasant Hill, California · 15811 days ago · 12 km deep · 42 km away
  7. 1.79 km N of East Foothills, California · 15810 days ago · 6 km deep · 17 km away
  8. 2.44 km W of San Juan Bautista, California · 15809 days ago · 9 km deep · 88 km away
  9. 1.92 km NE of Pacheco, California · 15809 days ago · 15 km deep · 46 km away
  10. 2.40 km WSW of Rollingwood, California · 15808 days ago · 5 km deep · 59 km away
  11. 1.65 km WSW of Gilroy, California · 15807 days ago · 2 km deep · 74 km away
  12. 1.621 km E of East Foothills, California · 15807 days ago · 7 km deep · 32 km away
  13. 2.17 km ENE of Hollister, California · 15806 days ago · 8 km deep · 94 km away
  14. 1.95 km NNE of Pleasanton, California · 15806 days ago · 13 km deep · 10 km away
  15. 2.05 km NNE of Pleasanton, California · 15806 days ago · 14 km deep · 10 km away
  16. 1.75 km NE of Pleasanton, California · 15806 days ago · 13 km deep · 9 km away
  17. 2.65 km NNE of Pleasanton, California · 15806 days ago · 14 km deep · 10 km away
  18. 2.05 km NNE of Pleasanton, California · 15806 days ago · 13 km deep · 10 km away
  19. 1.65 km NNE of Pleasanton, California · 15806 days ago · 13 km deep · 9 km away
  20. 2.76 km NNE of Pleasanton, California · 15806 days ago · 15 km deep · 10 km away
  21. 1.55 km NNE of Pleasanton, California · 15806 days ago · 12 km deep · 10 km away
  22. 1.76 km S of Green Valley, California · 15806 days ago · 7 km deep · 70 km away
  23. 2.19 km E of San Martin, California · 15805 days ago · 4 km deep · 65 km away
  24. 1.79 km ESE of East Foothills, California · 15805 days ago · 9 km deep · 31 km away
  25. 2.19 km ESE of East Foothills, California · 15805 days ago · 8 km deep · 31 km away
  26. 3.47 km WSW of Gilroy, California · 15804 days ago · 5 km deep · 72 km away
  27. 1.77 km WSW of Gilroy, California · 15804 days ago · 4 km deep · 72 km away
  28. 1.520 km E of East Foothills, California · 15804 days ago · 6 km deep · 33 km away
  29. 2.36 km WSW of Gilroy, California · 15804 days ago · 4 km deep · 72 km away
  30. 2.46 km WSW of Gilroy, California · 15804 days ago · 4 km deep · 72 km away
  31. 1.81 km E of Waldon, California · 15802 days ago · 9 km deep · 39 km away
  32. 2.07 km ENE of Seven Trees, California · 15800 days ago · 8 km deep · 34 km away
  33. 1.69 km NE of Gilroy, California · 15800 days ago · 4 km deep · 69 km away
  34. 1.94 km NNE of Pittsburg, California · 15800 days ago · 15 km deep · 50 km away
  35. 1.56 km E of Fremont, California · 15799 days ago · 5 km deep · 12 km away
  36. 2.08 km ESE of East Foothills, California · 15798 days ago · 3 km deep · 31 km away
  37. 2.26 km NE of East Foothills, California · 15798 days ago · 5 km deep · 23 km away
  38. 2.022 km W of Diablo Grande, California · 15798 days ago · 6 km deep · 33 km away
  39. 2.016 km NE of East Foothills, California · 15798 days ago · 8 km deep · 19 km away
  40. 2.15 km NW of San Leandro, California · 15797 days ago · 11 km deep · 36 km away
  41. 1.86 km NNW of San Juan Bautista, California · 15797 days ago · 6 km deep · 84 km away
  42. 1.54 km WSW of Loyola, California · 15796 days ago · 5 km deep · 42 km away
  43. 1.69 km NE of San Martin, California · 15795 days ago · 6 km deep · 58 km away
  44. 2.22 km SW of San Juan Bautista, California · 15795 days ago · 7 km deep · 91 km away
  45. 2.01 km SSE of Green Valley, California · 15795 days ago · 11 km deep · 75 km away
  46. 2.27 km E of East Foothills, California · 15794 days ago · 6 km deep · 29 km away
  47. 1.65 km SSW of Gilroy, California · 15793 days ago · 6 km deep · 76 km away
  48. 2.317 km W of Diablo Grande, California · 15792 days ago · 6 km deep · 40 km away
  49. 2.414 km NNE of Morgan Hill, California · 15791 days ago · 4 km deep · 47 km away
  50. 1.73 km NNE of San Leandro, California · 15791 days ago · 7 km deep · 31 km away
  51. 2.88 km NE of Corralitos, California · 15790 days ago · 12 km deep · 66 km away
  52. 1.84 km ESE of Aromas, California · 15790 days ago · 6 km deep · 86 km away
  53. 1.820 km SSE of Livermore, California · 15790 days ago · 6 km deep · 19 km away
  54. 2.42 km E of East Foothills, California · 15788 days ago · 5 km deep · 26 km away
  55. 1.87 km NE of Interlaken, California · 15787 days ago · 4 km deep · 70 km away
  56. 1.62 km ENE of Pacifica, California · 15785 days ago · 7 km deep · 56 km away
  57. 2.44 km NNW of San Leandro, California · 15785 days ago · 11 km deep · 35 km away
  58. 2.314 km E of Seven Trees, California · 15785 days ago · 8 km deep · 37 km away
  59. 1.75 km NE of Interlaken, California · 15784 days ago · 12 km deep · 71 km away
  60. 1.914 km E of Seven Trees, California · 15784 days ago · 2 km deep · 39 km away

The first 60 of 96.

Before

  1. 1.911 km ESE of East Foothills, California · 15813 days ago · 6 km deep · 33 km away
  2. 2.12 km WSW of Stevinson, California · 15814 days ago · 0 km deep · 90 km away
  3. 1.921 km NE of East Foothills, California · 15814 days ago · 5 km deep · 23 km away
  4. 2.56 km SW of Moraga, California · 15814 days ago · 6 km deep · 36 km away
  5. 1.89 km ENE of Morgan Hill, California · 15815 days ago · 6 km deep · 57 km away
  6. 1.710 km SE of Sunol, California · 15815 days ago · 5 km deep · 9 km away
  7. 1.96 km SSE of Gilroy, California · 15816 days ago · 5 km deep · 79 km away
  8. 2.45 km NE of Morgan Hill, California · 15817 days ago · 4 km deep · 54 km away
  9. 1.78 km E of San Martin, California · 15819 days ago · 0 km deep · 64 km away
  10. 1.820 km NW of Diablo Grande, California · 15819 days ago · 2 km deep · 36 km away
  11. 2.114 km N of Morgan Hill, California · 15819 days ago · 3 km deep · 43 km away
  12. 3.112 km N of Pittsburg, California · 15820 days ago · 17 km deep · 58 km away
  13. 2.39 km N of Pittsburg, California · 15820 days ago · 20 km deep · 55 km away
  14. 1.9Northern California · 15822 days ago · 3 km deep · 62 km away
  15. 1.83 km N of Ashland, California · 15823 days ago · 5 km deep · 28 km away
  16. 1.56 km ENE of East Foothills, California · 15824 days ago · 6 km deep · 24 km away
  17. 3.51 km ENE of Pittsburg, California · 15824 days ago · 17 km deep · 46 km away
  18. 1.94 km WSW of Moskowite Corner, California · 15824 days ago · 3 km deep · 97 km away
  19. 2.33 km N of Ashland, California · 15825 days ago · 5 km deep · 28 km away
  20. 1.89 km E of San Martin, California · 15825 days ago · 9 km deep · 65 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1096927. Read Thu, Oct 1, 2026, 1:26 PM UTC.