M2.7 earthquake 3 km NNE of Tobin, California

Magnitude

2.7 (md), micro

Local time

Sun, Jul 10, 1983, 5:09 AM PDT

UTC

1983-07-10 12:09:02 UTC

Depth

4.0 km (2.5 mi), shallow

Epicenter

39.968° N, 121.289° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.9 km horizontally, 8.0 km in depth

Magnitude uncertainty

±0.08

Depth from

From location

Station coverage gap

209°, poorly surrounded by stations

Stations used

6

• Quincy, CaliforniaPopulation 1,728. Forecast29 kmW
• Magalia, CaliforniaPopulation 11,310. Forecast30 kmNE
• Chico, CaliforniaPopulation 121,345. Forecast54 kmENE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast711 kmNNW

After

1. 2.04 km N of Oroville East, CaliforniaTue, Jul 12, 12:16 PM PDT · 15786 days ago · 2 km deep · 48 km away
2. 1.67 km NNE of Oroville East, CaliforniaTue, Jul 12, 1:34 PM PDT · 15786 days ago · 11 km deep · 46 km away
3. 2.30 km W of Hamilton City, CaliforniaFri, Jul 15, 4:10 AM PDT · 15783 days ago · 22 km deep · 67 km away
4. 1.92 km ESE of Johnsville, CaliforniaTue, Jul 19, 1:03 AM PDT · 15779 days ago · 5 km deep · 58 km away
5. 2.115 km N of Princeton, CaliforniaTue, Jul 19, 9:06 PM PDT · 15779 days ago · 21 km deep · 77 km away
6. 1.717 km SE of Round Mountain, CaliforniaWed, Jul 20, 10:59 PM PDT · 15777 days ago · 10 km deep · 89 km away
7. 2.36 km ESE of Butte Meadows, CaliforniaSat, Jul 23, 1:41 AM PDT · 15775 days ago · 1 km deep · 19 km away
8. 2.34 km S of Canyondam, CaliforniaSat, Jul 23, 3:31 AM PDT · 15775 days ago · 8 km deep · 26 km away
9. 3.21 km WSW of Spring Garden, CaliforniaSun, Jul 24, 10:05 AM PDT · 15774 days ago · 14 km deep · 42 km away
10. 2.03 km N of Belden, CaliforniaTue, Jul 26, 7:02 PM PDT · 15772 days ago · 3 km deep · 8 km away
11. 2.52 km NW of Storrie, CaliforniaSun, Jul 31, 3:41 AM PDT · 15767 days ago · 1 km deep · 6 km away
12. 2.114 km WNW of Richvale, CaliforniaMon, Aug 1, 8:46 AM PDT · 15766 days ago · 14 km deep · 71 km away
13. 2.33 km NE of Tobin, CaliforniaMon, Aug 1, 10:39 AM PDT · 15766 days ago · 3 km deep · 1 km away
14. 2.52 km N of Tobin, CaliforniaMon, Aug 1, 6:42 PM PDT · 15766 days ago · 5 km deep · 2 km away
15. 2.325 km E of Hat Creek, CaliforniaTue, Aug 2, 4:20 PM PDT · 15765 days ago · 8 km deep · 98 km away
16. 2.01 km SW of Iron Horse, CaliforniaWed, Aug 3, 5:11 AM PDT · 15764 days ago · 5 km deep · 70 km away
17. 2.63 km E of Prattville, CaliforniaThu, Aug 4, 12:30 AM PDT · 15763 days ago · 0 km deep · 31 km away
18. 2.65 km SSW of Hamilton City, CaliforniaThu, Aug 4, 7:16 AM PDT · 15763 days ago · 17 km deep · 71 km away
19. 2.015 km WSW of Chester, CaliforniaFri, Aug 5, 11:32 AM PDT · 15762 days ago · 10 km deep · 35 km away
20. 1.69 km W of Chester, CaliforniaFri, Aug 5, 2:21 PM PDT · 15762 days ago · 1 km deep · 36 km away
21. 2.34 km SW of Graeagle, CaliforniaFri, Aug 5, 10:17 PM PDT · 15761 days ago · 6 km deep · 60 km away
22. 2.00 km NE of Clio, CaliforniaFri, Aug 5, 11:48 PM PDT · 15761 days ago · 0 km deep · 66 km away
23. 2.16 km SE of Johnsville, CaliforniaFri, Aug 5, 11:52 PM PDT · 15761 days ago · 1 km deep · 62 km away
24. 2.410 km SSW of Plumas Eureka (historical), CaliforniaSat, Aug 6, 1:02 AM PDT · 15761 days ago · 5 km deep · 55 km away
25. 2.59 km SE of Sierraville, CaliforniaSat, Aug 6, 8:03 PM PDT · 15761 days ago · 7 km deep · 98 km away
26. 1.93 km WSW of Chester, CaliforniaThu, Aug 11, 10:47 PM PDT · 15755 days ago · 3 km deep · 36 km away
27. 2.49 km WSW of Chester, CaliforniaSat, Aug 13, 2:53 PM PDT · 15754 days ago · 5 km deep · 36 km away
28. 2.212 km ENE of Bend, CaliforniaMon, Aug 15, 1:41 PM PDT · 15752 days ago · -1 km deep · 76 km away
29. 1.60 km W of Chilcoot-Vinton, CaliforniaTue, Aug 16, 6:16 AM PDT · 15751 days ago · 18 km deep · 99 km away
30. 2.312 km ENE of Butte Meadows, CaliforniaTue, Aug 16, 7:41 AM PDT · 15751 days ago · 33 km deep · 20 km away
31. 2.212 km ESE of Cottonwood, CaliforniaTue, Aug 16, 11:24 PM PDT · 15750 days ago · 15 km deep · 84 km away
32. 2.52 km NNW of Belden, CaliforniaWed, Aug 17, 12:05 AM PDT · 15750 days ago · 0 km deep · 7 km away
33. 2.711 km WSW of Doyle, CaliforniaWed, Aug 17, 5:51 AM PDT · 15750 days ago · -2 km deep · 90 km away
34. 1.911 km ENE of Mineral, CaliforniaWed, Aug 17, 8:11 AM PDT · 15750 days ago · 3 km deep · 50 km away
35. 1.612 km N of Mineral, CaliforniaWed, Aug 17, 1:47 PM PDT · 15750 days ago · -2 km deep · 59 km away
36. 1.814 km NNE of Mineral, CaliforniaWed, Aug 17, 2:03 PM PDT · 15750 days ago · 4 km deep · 59 km away
37. 1.813 km NE of Bend, CaliforniaWed, Aug 17, 2:11 PM PDT · 15750 days ago · 15 km deep · 82 km away
38. 2.75 km SSW of Doyle, CaliforniaWed, Aug 17, 10:54 PM PDT · 15749 days ago · -2 km deep · 99 km away
39. 1.812 km NNE of Mineral, CaliforniaSat, Aug 20, 3:42 AM PDT · 15747 days ago · 1 km deep · 59 km away
40. 1.815 km NNE of Mineral, CaliforniaSat, Aug 20, 1:27 PM PDT · 15747 days ago · 2 km deep · 60 km away
41. 2.212 km ENE of Bend, CaliforniaThu, Aug 25, 2:49 PM PDT · 15742 days ago · 13 km deep · 76 km away
42. 1.913 km E of Artois, CaliforniaFri, Aug 26, 11:15 AM PDT · 15741 days ago · 20 km deep · 75 km away
43. 2.114 km SW of Milford, CaliforniaFri, Aug 26, 9:57 PM PDT · 15740 days ago · -2 km deep · 70 km away
44. 2.15 km NNE of Belden, CaliforniaSat, Aug 27, 7:08 AM PDT · 15740 days ago · 4 km deep · 11 km away
45. 1.66 km NE of Nord, CaliforniaSat, Aug 27, 10:03 PM PDT · 15739 days ago · 20 km deep · 56 km away
46. 2.615 km E of Hat Creek, CaliforniaSun, Aug 28, 9:31 PM PDT · 15739 days ago · 14 km deep · 98 km away
47. 1.83 km W of Storrie, CaliforniaThu, Sep 1, 3:32 AM PDT · 15735 days ago · 10 km deep · 8 km away
48. 2.425 km NNW of Susanville, CaliforniaMon, Sep 5, 9:34 AM PDT · 15731 days ago · 0 km deep · 83 km away
49. 2.311 km NE of Vina, CaliforniaTue, Sep 6, 12:20 PM PDT · 15730 days ago · -1 km deep · 57 km away

Before

1. 2.8Northern CaliforniaSun, Jul 10, 4:45 AM PDT · 15788 days ago · 5 km deep · 2 km away
2. 3.120 km SE of Paynes Creek, CaliforniaSun, Jul 10, 1:11 AM PDT · 15788 days ago · 0 km deep · 47 km away
3. 2.415 km N of Princeton, CaliforniaThu, Jul 7, 9:07 AM PDT · 15791 days ago · 22 km deep · 76 km away
4. 1.812 km E of Bend, CaliforniaWed, Jul 6, 12:00 AM PDT · 15792 days ago · 7 km deep · 73 km away
5. 2.413 km NNW of Cohasset, CaliforniaTue, Jul 5, 11:34 AM PDT · 15793 days ago · 4 km deep · 44 km away
6. 1.814 km N of Princeton, CaliforniaThu, Jun 30, 7:52 AM PDT · 15798 days ago · 21 km deep · 76 km away
7. 2.05 km SE of Stirling City, CaliforniaMon, Jun 27, 7:27 PM PDT · 15801 days ago · 7 km deep · 19 km away
8. 2.34 km NNW of Rackerby, CaliforniaFri, Jun 24, 7:32 AM PDT · 15804 days ago · 15 km deep · 54 km away
9. 3.312 km N of Princeton, CaliforniaThu, Jun 23, 2:01 AM PDT · 15805 days ago · 19 km deep · 78 km away
10. 2.110 km SE of Millville, CaliforniaThu, Jun 16, 11:23 AM PDT · 15812 days ago · 15 km deep · 89 km away
11. 1.810 km ENE of Shingletown, CaliforniaWed, Jun 15, 2:19 PM PDT · 15813 days ago · 3 km deep · 76 km away
12. 1.914 km S of Hamilton City, CaliforniaWed, Jun 15, 7:40 AM PDT · 15813 days ago · 5 km deep · 74 km away
13. 1.714 km NNE of Mineral, CaliforniaTue, Jun 14, 2:20 AM PDT · 15814 days ago · 5 km deep · 60 km away
14. 2.14 km SSW of Lake Almanor West, CaliforniaSun, Jun 12, 11:58 PM PDT · 15815 days ago · 2 km deep · 26 km away
15. 2.42 km WNW of Nord, CaliforniaSat, Jun 11, 9:45 AM PDT · 15817 days ago · 18 km deep · 62 km away
16. 2.714 km E of Willows, CaliforniaFri, Jun 10, 7:39 PM PDT · 15818 days ago · 19 km deep · 79 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1098368. Read Wed, Sep 30, 2026, 4:27 PM UTC.