California earthquakes

M1.9 earthquake 2 km NNW of Tobin, California

A magnitude 1.9 earthquake struck 2 km NNW of Tobin, California on Tue, May 31, 1983, 11:31 PM PDT (06:31 UTC), 8 km (5 mi) below the surface.

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

Magalia 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
1.9 (md), micro
Local time
UTC
1983-06-01 06:31:57 UTC
Depth
8.3 km (5.1 mi), shallow
Epicenter
39.954° N, 121.321° 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 1.5 km horizontally, 6.8 km in depth
Magnitude uncertainty
±0.30
Depth from
From location
Station coverage gap
291°, 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: 35 in the 60 days after this one and 18 in the 30 days before it.

After

  1. 2.74 km SW of Belden, California · 15828 days ago · 4 km deep · 4 km away
  2. 1.82 km NNW of Tobin, California · 15827 days ago · 7 km deep · 1 km away
  3. 2.64 km NNE of Tobin, California · 15827 days ago · 3 km deep · 4 km away
  4. 2.89 km NNE of Little Grass Valley, California · 15825 days ago · 4 km deep · 38 km away
  5. 1.814 km SW of Durham, California · 15825 days ago · 21 km deep · 68 km away
  6. 2.515 km NNE of Mineral, California · 15822 days ago · 2 km deep · 60 km away
  7. 1.615 km NNE of Mineral, California · 15822 days ago · 2 km deep · 60 km away
  8. 2.714 km E of Willows, California · 15818 days ago · 19 km deep · 75 km away
  9. 2.42 km WNW of Nord, California · 15817 days ago · 18 km deep · 59 km away
  10. 2.14 km SSW of Lake Almanor West, California · 15816 days ago · 2 km deep · 28 km away
  11. 1.714 km NNE of Mineral, California · 15814 days ago · 5 km deep · 60 km away
  12. 1.914 km S of Hamilton City, California · 15813 days ago · 5 km deep · 71 km away
  13. 1.810 km ENE of Shingletown, California · 15813 days ago · 3 km deep · 76 km away
  14. 2.110 km SE of Millville, California · 15812 days ago · 15 km deep · 88 km away
  15. 3.312 km N of Princeton, California · 15805 days ago · 19 km deep · 75 km away
  16. 2.34 km NNW of Rackerby, California · 15804 days ago · 15 km deep · 52 km away
  17. 2.05 km SE of Stirling City, California · 15801 days ago · 7 km deep · 16 km away
  18. 1.814 km N of Princeton, California · 15798 days ago · 21 km deep · 73 km away
  19. 2.413 km NNW of Cohasset, California · 15793 days ago · 4 km deep · 42 km away
  20. 1.812 km E of Bend, California · 15793 days ago · 7 km deep · 72 km away
  21. 2.415 km N of Princeton, California · 15791 days ago · 22 km deep · 73 km away
  22. 3.120 km SE of Paynes Creek, California · 15789 days ago · 0 km deep · 46 km away
  23. 2.8Northern California · 15788 days ago · 5 km deep · 5 km away
  24. 2.73 km NNE of Tobin, California · 15788 days ago · 4 km deep · 3 km away
  25. 2.04 km N of Oroville East, California · 15786 days ago · 2 km deep · 46 km away
  26. 1.67 km NNE of Oroville East, California · 15786 days ago · 11 km deep · 44 km away
  27. 2.30 km W of Hamilton City, California · 15783 days ago · 22 km deep · 64 km away
  28. 1.92 km ESE of Johnsville, California · 15780 days ago · 5 km deep · 60 km away
  29. 2.115 km N of Princeton, California · 15779 days ago · 21 km deep · 74 km away
  30. 1.717 km SE of Round Mountain, California · 15778 days ago · 10 km deep · 90 km away
  31. 2.36 km ESE of Butte Meadows, California · 15775 days ago · 1 km deep · 18 km away
  32. 2.34 km S of Canyondam, California · 15775 days ago · 8 km deep · 29 km away
  33. 3.21 km WSW of Spring Garden, California · 15774 days ago · 14 km deep · 45 km away
  34. 2.03 km N of Belden, California · 15772 days ago · 3 km deep · 11 km away
  35. 2.44 km WSW of Flournoy, California · 15768 days ago · 17 km deep · 99 km away

Before

  1. 3.22 km SSE of Belden, California · 15828 days ago · 3 km deep · 8 km away
  2. 1.82 km WNW of Tobin, California · 15829 days ago · 7 km deep · 2 km away
  3. 2.54 km SE of Stirling City, California · 15829 days ago · 35 km deep · 17 km away
  4. 2.12 km SSW of Belden, California · 15829 days ago · 2 km deep · 6 km away
  5. 1.81 km SE of Tobin, California · 15829 days ago · 10 km deep · 3 km away
  6. 2.83 km SW of Belden, California · 15829 days ago · 9 km deep · 5 km away
  7. 1.913 km NNW of Belden, California · 15830 days ago · 4 km deep · 18 km away
  8. 1.72 km SSW of Belden, California · 15830 days ago · 5 km deep · 6 km away
  9. 2.70 km N of Storrie, California · 15830 days ago · 5 km deep · 3 km away
  10. 2.93 km NE of Tobin, California · 15830 days ago · 12 km deep · 3 km away
  11. 2.07 km W of Sierra City, California · 15836 days ago · 26 km deep · 67 km away
  12. 1.78 km SSE of Johnsville, California · 15836 days ago · 5 km deep · 63 km away
  13. 1.65 km NW of Belden, California · 15837 days ago · 8 km deep · 10 km away
  14. 2.014 km NNE of Mineral, California · 15841 days ago · 17 km deep · 61 km away
  15. 2.64 km W of Butte Meadows, California · 15842 days ago · 1 km deep · 28 km away
  16. 1.65 km E of Olivehurst, California · 15844 days ago · 27 km deep · 96 km away
  17. 2.92 km N of Little Grass Valley, California · 15845 days ago · 28 km deep · 38 km away
  18. 1.814 km NNE of Mineral, California · 15846 days ago · 3 km deep · 60 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1095889. Read Wed, Sep 30, 2026, 7:43 PM UTC.