California earthquakes

M1.8 earthquake 1 km SE of Tobin, California

A magnitude 1.8 earthquake struck 1 km SE of Tobin, California on Mon, May 30, 1983, 4:19 AM PDT (11:19 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.3 12 km N of Princeton, California. This one was a foreshock.

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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), micro
Local time
UTC
1983-05-30 11:19:15 UTC
Depth
9.5 km (5.9 mi), shallow
Epicenter
39.930° N, 121.299° 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 1.8 km horizontally, 17.1 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
289°, poorly surrounded by stations
Stations used
4

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 40 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 2.12 km SSW of Belden, California · 15829 days ago · 2 km deep · 7 km away
  2. 2.54 km SE of Stirling City, California · 15829 days ago · 35 km deep · 17 km away
  3. 1.82 km WNW of Tobin, California · 15829 days ago · 7 km deep · 3 km away
  4. 3.22 km SSE of Belden, California · 15828 days ago · 3 km deep · 8 km away
  5. 1.92 km NNW of Tobin, California · 15828 days ago · 8 km deep · 3 km away
  6. 2.74 km SW of Belden, California · 15828 days ago · 4 km deep · 6 km away
  7. 1.82 km NNW of Tobin, California · 15827 days ago · 7 km deep · 4 km away
  8. 2.64 km NNE of Tobin, California · 15827 days ago · 3 km deep · 5 km away
  9. 2.89 km NNE of Little Grass Valley, California · 15825 days ago · 4 km deep · 35 km away
  10. 1.814 km SW of Durham, California · 15825 days ago · 21 km deep · 68 km away
  11. 2.515 km NNE of Mineral, California · 15822 days ago · 2 km deep · 63 km away
  12. 1.615 km NNE of Mineral, California · 15822 days ago · 2 km deep · 63 km away
  13. 2.714 km E of Willows, California · 15818 days ago · 19 km deep · 75 km away
  14. 2.42 km WNW of Nord, California · 15817 days ago · 18 km deep · 60 km away
  15. 2.14 km SSW of Lake Almanor West, California · 15816 days ago · 2 km deep · 30 km away
  16. 1.714 km NNE of Mineral, California · 15814 days ago · 5 km deep · 63 km away
  17. 1.914 km S of Hamilton City, California · 15813 days ago · 5 km deep · 71 km away
  18. 1.810 km ENE of Shingletown, California · 15813 days ago · 3 km deep · 79 km away
  19. 2.110 km SE of Millville, California · 15812 days ago · 15 km deep · 91 km away
  20. 2.15 km NE of Lake of the Pines, California · 15811 days ago · 7 km deep · 98 km away
  21. 3.312 km N of Princeton, California · 15805 days ago · 19 km deep · 75 km away
  22. 2.34 km NNW of Rackerby, California · 15804 days ago · 15 km deep · 50 km away
  23. 2.05 km SE of Stirling City, California · 15801 days ago · 7 km deep · 16 km away
  24. 1.814 km N of Princeton, California · 15798 days ago · 21 km deep · 73 km away
  25. 2.413 km NNW of Cohasset, California · 15793 days ago · 4 km deep · 44 km away
  26. 1.812 km E of Bend, California · 15793 days ago · 7 km deep · 74 km away
  27. 2.415 km N of Princeton, California · 15791 days ago · 22 km deep · 73 km away
  28. 3.120 km SE of Paynes Creek, California · 15788 days ago · 0 km deep · 49 km away
  29. 2.8Northern California · 15788 days ago · 5 km deep · 5 km away
  30. 2.73 km NNE of Tobin, California · 15788 days ago · 4 km deep · 4 km away
  31. 2.04 km N of Oroville East, California · 15786 days ago · 2 km deep · 44 km away
  32. 1.67 km NNE of Oroville East, California · 15786 days ago · 11 km deep · 42 km away
  33. 2.30 km W of Hamilton City, California · 15783 days ago · 22 km deep · 65 km away
  34. 1.92 km ESE of Johnsville, California · 15779 days ago · 5 km deep · 57 km away
  35. 2.115 km N of Princeton, California · 15779 days ago · 21 km deep · 74 km away
  36. 1.717 km SE of Round Mountain, California · 15778 days ago · 10 km deep · 93 km away
  37. 2.36 km ESE of Butte Meadows, California · 15775 days ago · 1 km deep · 21 km away
  38. 2.34 km S of Canyondam, California · 15775 days ago · 8 km deep · 30 km away
  39. 3.21 km WSW of Spring Garden, California · 15774 days ago · 14 km deep · 42 km away
  40. 2.03 km N of Belden, California · 15772 days ago · 3 km deep · 13 km away

Before

  1. 2.83 km SW of Belden, California · 15829 days ago · 9 km deep · 6 km away
  2. 1.913 km NNW of Belden, California · 15830 days ago · 4 km deep · 21 km away
  3. 1.72 km SSW of Belden, California · 15830 days ago · 5 km deep · 7 km away
  4. 2.70 km N of Storrie, California · 15830 days ago · 5 km deep · 2 km away
  5. 2.93 km NE of Tobin, California · 15830 days ago · 12 km deep · 4 km away
  6. 2.07 km W of Sierra City, California · 15836 days ago · 26 km deep · 64 km away
  7. 1.78 km SSE of Johnsville, California · 15836 days ago · 5 km deep · 60 km away
  8. 1.65 km NW of Belden, California · 15837 days ago · 8 km deep · 12 km away
  9. 2.014 km NNE of Mineral, California · 15841 days ago · 17 km deep · 64 km away
  10. 2.64 km W of Butte Meadows, California · 15842 days ago · 1 km deep · 31 km away
  11. 1.65 km E of Olivehurst, California · 15844 days ago · 27 km deep · 94 km away
  12. 2.92 km N of Little Grass Valley, California · 15845 days ago · 28 km deep · 35 km away
  13. 1.814 km NNE of Mineral, California · 15846 days ago · 3 km deep · 63 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1095779. Read Wed, Sep 30, 2026, 7:30 PM UTC.