M2.1 earthquake 27 km E of Ruth, California

Magnitude

2.1 (md), micro

Local time

Tue, Oct 29, 1985, 5:57 AM PST

UTC

1985-10-29 13:57:09 UTC

Depth

25.0 km (15.5 mi), shallow

Epicenter

40.261° N, 122.998° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.6 km horizontally, 4.5 km in depth

Magnitude uncertainty

±0.15

Depth from

From location

Station coverage gap

128°

Stations used

15

• Hayfork, CaliforniaPopulation 2,368. Forecast36 kmSSE
• Redding, CaliforniaPopulation 91,582. Forecast63 kmSW
• Chico, CaliforniaPopulation 121,345. Forecast115 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast809 kmNNW

After

1. 2.61 km ESE of Lakehead, CaliforniaThu, Oct 31, 9:56 PM PST · 14936 days ago · 19 km deep · 89 km away
2. 2.05 km SSE of Red Bluff, CaliforniaFri, Nov 1, 6:10 AM PST · 14935 days ago · 6 km deep · 69 km away
3. 2.81 km ENE of Lakehead, CaliforniaFri, Nov 1, 9:53 AM PST · 14935 days ago · 18 km deep · 90 km away
4. 1.79 km NNE of Brooktrails, CaliforniaSat, Nov 2, 7:29 AM PST · 14934 days ago · 8 km deep · 87 km away
5. 2.18 km NNE of Trinity Village, CaliforniaSat, Nov 2, 7:58 PM PST · 14934 days ago · 23 km deep · 88 km away
6. 3.30 km WSW of Tehama, CaliforniaSun, Nov 3, 5:02 AM PST · 14933 days ago · 71 km deep · 78 km away
7. 1.521 km W of Trinity Center, CaliforniaSun, Nov 3, 8:07 PM PST · 14933 days ago · 20 km deep · 78 km away
8. 1.714 km NE of Potter Valley, CaliforniaMon, Nov 4, 9:03 AM PST · 14932 days ago · 6 km deep · 96 km away
9. 2.025 km W of Paskenta, CaliforniaThu, Nov 7, 5:00 AM PST · 14929 days ago · -1 km deep · 43 km away
10. 1.823 km SE of Covelo, CaliforniaSat, Nov 9, 7:34 AM PST · 14927 days ago · 5 km deep · 71 km away
11. 1.828 km W of Paskenta, CaliforniaMon, Nov 11, 5:25 AM PST · 14925 days ago · 15 km deep · 39 km away
12. 1.77 km NE of Phillipsville, CaliforniaMon, Nov 11, 4:24 PM PST · 14925 days ago · 8 km deep · 62 km away
13. 2.88 km E of Leggett, CaliforniaMon, Nov 11, 8:15 PM PST · 14925 days ago · 0 km deep · 69 km away
14. 2.613 km N of Brooktrails, CaliforniaMon, Nov 11, 8:57 PM PST · 14925 days ago · 9 km deep · 84 km away
15. 1.630 km ENE of Covelo, CaliforniaWed, Nov 13, 3:41 AM PST · 14923 days ago · 16 km deep · 37 km away
16. 1.513 km N of Brooktrails, CaliforniaWed, Nov 13, 4:27 AM PST · 14923 days ago · 9 km deep · 84 km away
17. 1.78 km N of Laytonville, CaliforniaWed, Nov 13, 6:29 AM PST · 14923 days ago · 3 km deep · 69 km away
18. 1.66 km ENE of Brooktrails, CaliforniaFri, Nov 15, 5:43 AM PST · 14921 days ago · 7 km deep · 91 km away
19. 1.514 km SSE of Laytonville, CaliforniaSun, Nov 17, 4:03 AM PST · 14919 days ago · 10 km deep · 83 km away
20. 1.726 km WNW of Paskenta, CaliforniaTue, Nov 19, 11:46 AM PST · 14917 days ago · -1 km deep · 36 km away
21. 3.78 km NNW of Alderpoint, CaliforniaFri, Nov 22, 11:27 PM PST · 14914 days ago · 28 km deep · 56 km away
22. 1.613 km SW of Mad River, CaliforniaFri, Nov 22, 11:44 PM PST · 14914 days ago · 4 km deep · 56 km away
23. 1.710 km NE of Phillipsville, CaliforniaFri, Nov 22, 11:47 PM PST · 14914 days ago · 24 km deep · 59 km away
24. 2.210 km NE of Phillipsville, CaliforniaSat, Nov 23, 12:47 AM PST · 14914 days ago · 29 km deep · 59 km away
25. 1.915 km W of Manton, CaliforniaSat, Nov 23, 8:49 PM PST · 14913 days ago · 28 km deep · 83 km away
26. 2.49 km NNW of Alderpoint, CaliforniaSat, Nov 23, 9:30 PM PST · 14913 days ago · 26 km deep · 57 km away
27. 1.810 km NE of Phillipsville, CaliforniaSat, Nov 23, 11:17 PM PST · 14913 days ago · 26 km deep · 59 km away
28. 1.817 km NE of Myers Flat, CaliforniaSun, Nov 24, 6:25 PM PST · 14912 days ago · 22 km deep · 63 km away
29. 2.118 km ENE of Weott, CaliforniaSun, Nov 24, 6:26 PM PST · 14912 days ago · 19 km deep · 64 km away
30. 2.026 km NE of Potter Valley, CaliforniaSun, Nov 24, 10:08 PM PST · 14912 days ago · 7 km deep · 88 km away
31. 2.334 km NW of Paskenta, CaliforniaWed, Nov 27, 1:35 AM PST · 14909 days ago · 8 km deep · 23 km away
32. 1.930 km WNW of Paskenta, CaliforniaFri, Nov 29, 9:13 PM PST · 14907 days ago · 1 km deep · 33 km away
33. 1.710 km WNW of Trinity Center, CaliforniaMon, Dec 2, 1:04 AM PST · 14904 days ago · 4 km deep · 85 km away
34. 3.05 km S of Millville, CaliforniaMon, Dec 2, 9:47 AM PST · 14904 days ago · 4 km deep · 75 km away
35. 2.115 km NNW of Shingletown, CaliforniaMon, Dec 2, 10:38 PM PST · 14904 days ago · 9 km deep · 98 km away
36. 2.29 km N of Mad River, CaliforniaTue, Dec 3, 1:03 PM PST · 14903 days ago · 4 km deep · 52 km away
37. 1.821 km NE of Willow Creek, CaliforniaThu, Dec 5, 11:38 AM PST · 14901 days ago · 4 km deep · 96 km away
38. 2.22 km E of Benbow, CaliforniaThu, Dec 5, 5:53 PM PST · 14901 days ago · 17 km deep · 68 km away
39. 2.433 km NE of Trinity Village, CaliforniaFri, Dec 6, 1:13 AM PST · 14900 days ago · 30 km deep · 95 km away
40. 1.95 km N of Lakehead, CaliforniaSat, Dec 7, 9:01 PM PST · 14899 days ago · 8 km deep · 93 km away
41. 2.527km E of Willow Creek, CATue, Dec 10, 9:45 AM PST · 14896 days ago · 29 km deep · 77 km away
42. 1.721 km NW of Mad River, CaliforniaFri, Dec 13, 5:46 AM PST · 14893 days ago · 24 km deep · 69 km away
43. 1.67 km E of Willits, CaliforniaSat, Dec 14, 11:27 PM PST · 14892 days ago · 8 km deep · 97 km away
44. 1.624 km WNW of Paskenta, CaliforniaWed, Dec 18, 10:10 PM PST · 14888 days ago · 4 km deep · 34 km away
45. 2.526 km W of Paskenta, CaliforniaMon, Dec 23, 4:21 PM PST · 14883 days ago · -1 km deep · 39 km away
46. 1.722 km ENE of Potter Valley, CaliforniaTue, Dec 24, 1:15 AM PST · 14882 days ago · 10 km deep · 96 km away
47. 2.121 km SE of Blue Lake, CaliforniaWed, Dec 25, 8:58 AM PST · 14881 days ago · 27 km deep · 87 km away
48. 1.910 km NNE of Brooktrails, CaliforniaThu, Dec 26, 2:22 AM PST · 14880 days ago · 8 km deep · 86 km away
49. 1.816 km WNW of Mad River, CaliforniaThu, Dec 26, 1:00 PM PST · 14880 days ago · 24 km deep · 65 km away

Before

1. 1.610 km SSE of Laytonville, CaliforniaMon, Oct 28, 4:37 PM PST · 14939 days ago · 7 km deep · 81 km away
2. 3.122 km WSW of Weott, CaliforniaSat, Oct 26, 4:41 PM PDT · 14941 days ago · 13 km deep · 98 km away
3. 1.527 km NNE of Potter Valley, CaliforniaFri, Oct 25, 6:59 PM PDT · 14942 days ago · 9 km deep · 79 km away
4. 2.625 km SE of Blue Lake, CaliforniaSat, Oct 19, 4:11 PM PDT · 14948 days ago · 53 km deep · 83 km away
5. 1.611 km SSE of Laytonville, CaliforniaThu, Oct 17, 9:32 AM PDT · 14950 days ago · 3 km deep · 83 km away
6. 1.76 km ENE of Willits, CaliforniaTue, Oct 15, 8:25 PM PDT · 14952 days ago · 4 km deep · 96 km away
7. 2.310 km SSE of Laytonville, CaliforniaMon, Oct 14, 9:39 AM PDT · 14953 days ago · 8 km deep · 81 km away
8. 1.631 km WNW of Paskenta, CaliforniaMon, Oct 14, 1:51 AM PDT · 14954 days ago · 10 km deep · 28 km away
9. 2.720 km SW of Weott, CaliforniaFri, Oct 11, 2:11 AM PDT · 14956 days ago · 4 km deep · 95 km away
10. 2.112 km NNW of Potter Valley, CaliforniaThu, Oct 10, 5:02 PM PDT · 14957 days ago · 5 km deep · 94 km away
11. 1.814 km WNW of Cohasset, CaliforniaWed, Oct 9, 4:10 PM PDT · 14958 days ago · 5 km deep · 100 km away
12. 1.714 km W of Ruth, CaliforniaWed, Oct 9, 3:47 AM PDT · 14958 days ago · -1 km deep · 42 km away
13. 2.422 km NW of Mad River, CaliforniaSat, Oct 5, 4:49 AM PDT · 14962 days ago · 23 km deep · 70 km away
14. 1.722 km WSW of Weott, CaliforniaFri, Oct 4, 3:30 PM PDT · 14963 days ago · 9 km deep · 100 km away
15. 2.27 km NE of Redding, CaliforniaFri, Oct 4, 7:49 AM PDT · 14963 days ago · 29 km deep · 70 km away
16. 2.411 km SSE of Laytonville, CaliforniaWed, Oct 2, 3:08 AM PDT · 14965 days ago · 2 km deep · 83 km away
17. 2.19 km NE of Vina, CaliforniaTue, Oct 1, 4:42 PM PDT · 14966 days ago · 0 km deep · 92 km away
18. 1.715 km WSW of Laytonville, CaliforniaTue, Oct 1, 11:25 AM PDT · 14966 days ago · 3 km deep · 88 km away
19. 3.329 km SE of Ruth, CaliforniaTue, Oct 1, 4:59 AM PDT · 14966 days ago · 42 km deep · 17 km away
20. 1.813 km N of French Gulch, CaliforniaMon, Sep 30, 7:19 PM PDT · 14967 days ago · 40 km deep · 70 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc58364. Read Tue, Sep 22, 2026, 8:26 PM UTC.