M2.1 earthquake 11 km W of Indianola, California

Magnitude

2.1 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Sat, Aug 27, 1983, 4:38 AM PDT

UTC

1983-08-27 11:38:16 UTC

Depth

19.0 km (11.8 mi), shallow

Epicenter

40.690° N, 124.370° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.3 km horizontally, 0.5 km in depth

Magnitude uncertainty

±0.05

Depth from

From location

Station coverage gap

216°, poorly surrounded by stations

Stations used

14

• Loleta, CaliforniaPopulation 783. Forecast13 kmWNW
• Fortuna, CaliforniaPopulation 12,000. Forecast21 kmWNW
• Chico, CaliforniaPopulation 121,345. Forecast240 kmWNW

After

1. 2.021 km SSW of Ferndale, CaliforniaSat, Aug 27, 12:32 PM PDT · 15743 days ago · 26 km deep · 33 km away
2. 1.846 km SW of Ferndale, CaliforniaSat, Aug 27, 1:32 PM PDT · 15742 days ago · 5 km deep · 54 km away
3. 2.030 km NW of Shelter Cove, CaliforniaSat, Aug 27, 8:11 PM PDT · 15742 days ago · 30 km deep · 50 km away
4. 3.038 km SW of Ferndale, CaliforniaSun, Aug 28, 4:29 AM PDT · 15742 days ago · 20 km deep · 45 km away
5. 2.870 km W of Ferndale, CaliforniaSun, Aug 28, 5:58 AM PDT · 15742 days ago · 8 km deep · 60 km away
6. 1.529 km WSW of Ferndale, CaliforniaSun, Aug 28, 6:16 AM PDT · 15742 days ago · 17 km deep · 29 km away
7. 1.53 km SSE of Ferndale, CaliforniaSun, Aug 28, 7:21 AM PDT · 15742 days ago · 26 km deep · 19 km away
8. 2.348 km WSW of Ferndale, CaliforniaSun, Aug 28, 12:43 PM PDT · 15742 days ago · 20 km deep · 51 km away
9. 2.527 km NNE of Trinity Village, CaliforniaSun, Aug 28, 4:51 PM PDT · 15741 days ago · 31 km deep · 96 km away
10. 3.537 km SSW of Ferndale, CaliforniaSun, Aug 28, 8:38 PM PDT · 15741 days ago · 20 km deep · 46 km away
11. 2.035 km SSW of Ferndale, CaliforniaMon, Aug 29, 12:29 AM PDT · 15741 days ago · 20 km deep · 44 km away
12. 1.614 km SW of Scotia, CaliforniaMon, Aug 29, 12:57 AM PDT · 15741 days ago · 38 km deep · 38 km away
13. 2.843 km SW of Ferndale, CaliforniaMon, Aug 29, 11:47 AM PDT · 15741 days ago · 22 km deep · 47 km away
14. 2.833 km SSW of Ferndale, CaliforniaMon, Aug 29, 3:31 PM PDT · 15740 days ago · 24 km deep · 43 km away
15. 3.643 km SW of Ferndale, CaliforniaTue, Aug 30, 3:13 AM PDT · 15740 days ago · 20 km deep · 47 km away
16. 2.033 km SW of Scotia, CaliforniaTue, Aug 30, 3:37 PM PDT · 15739 days ago · 17 km deep · 45 km away
17. 2.736 km SSW of Ferndale, CaliforniaWed, Aug 31, 1:26 AM PDT · 15739 days ago · 20 km deep · 45 km away
18. 3.044 km SW of Ferndale, CaliforniaWed, Aug 31, 3:34 AM PDT · 15739 days ago · 21 km deep · 47 km away
19. 2.435 km SSW of Ferndale, CaliforniaWed, Aug 31, 8:38 AM PDT · 15739 days ago · 18 km deep · 45 km away
20. 1.543 km SW of Ferndale, CaliforniaWed, Aug 31, 11:43 AM PDT · 15739 days ago · 26 km deep · 51 km away
21. 2.141 km SW of Ferndale, CaliforniaWed, Aug 31, 1:47 PM PDT · 15738 days ago · 10 km deep · 49 km away
22. 1.833 km SW of Ferndale, CaliforniaWed, Aug 31, 7:40 PM PDT · 15738 days ago · 17 km deep · 38 km away
23. 2.742 km SW of Ferndale, CaliforniaWed, Aug 31, 10:01 PM PDT · 15738 days ago · 23 km deep · 46 km away
24. 1.732 km SW of Ferndale, CaliforniaThu, Sep 1, 6:58 PM PDT · 15737 days ago · 21 km deep · 40 km away
25. 2.365 km WSW of Ferndale, CaliforniaThu, Sep 1, 10:05 PM PDT · 15737 days ago · 37 km deep · 64 km away
26. 2.873 km WSW of Ferndale, CaliforniaFri, Sep 2, 12:20 PM PDT · 15737 days ago · 42 km deep · 69 km away
27. 1.932 km SW of Scotia, CaliforniaFri, Sep 2, 8:34 PM PDT · 15736 days ago · 22 km deep · 44 km away
28. 1.816 km SW of Mad River, CaliforniaSat, Sep 3, 12:24 AM PDT · 15736 days ago · 21 km deep · 70 km away
29. 1.84 km WSW of Scotia, CaliforniaSat, Sep 3, 6:54 AM PDT · 15736 days ago · 9 km deep · 31 km away
30. 2.339 km SW of Ferndale, CaliforniaSun, Sep 4, 12:26 AM PDT · 15735 days ago · 21 km deep · 46 km away
31. 1.56 km S of Ferndale, CaliforniaSun, Sep 4, 1:07 AM PDT · 15735 days ago · 9 km deep · 21 km away
32. 2.145 km SW of Ferndale, CaliforniaSun, Sep 4, 3:56 AM PDT · 15735 days ago · 24 km deep · 49 km away
33. 2.364 km WSW of Ferndale, CaliforniaMon, Sep 5, 2:24 PM PDT · 15733 days ago · 59 km deep · 62 km away
34. 2.733 km SW of Scotia, CaliforniaTue, Sep 6, 12:29 AM PDT · 15733 days ago · 23 km deep · 45 km away
35. 2.39 km SW of Ferndale, CaliforniaThu, Sep 8, 10:03 AM PDT · 15731 days ago · 14 km deep · 21 km away
36. 2.934 km SW of Scotia, CaliforniaFri, Sep 9, 11:40 AM PDT · 15730 days ago · 22 km deep · 45 km away
37. 2.016 km SSW of Ferndale, CaliforniaFri, Sep 9, 3:10 PM PDT · 15729 days ago · 18 km deep · 28 km away
38. 2.17 km WNW of Hyampom, CaliforniaSat, Sep 10, 2:52 AM PDT · 15729 days ago · 26 km deep · 71 km away
39. 1.936 km SSW of Ferndale, CaliforniaSat, Sep 10, 9:39 AM PDT · 15729 days ago · 22 km deep · 44 km away
40. 3.14 km NE of Miranda, CaliforniaSat, Sep 10, 8:57 PM PDT · 15728 days ago · 27 km deep · 68 km away
41. 2.531 km WSW of Ferndale, CaliforniaSat, Sep 10, 11:23 PM PDT · 15728 days ago · 33 km deep · 32 km away
42. 3.334 km SSW of Ferndale, CaliforniaSun, Sep 11, 7:33 AM PDT · 15728 days ago · 23 km deep · 45 km away
43. 1.620 km SW of Ferndale, CaliforniaSun, Sep 11, 10:30 AM PDT · 15728 days ago · 25 km deep · 27 km away
44. 1.75 km NNE of Mad River, CaliforniaSun, Sep 11, 11:03 AM PDT · 15728 days ago · 4 km deep · 78 km away
45. 2.618 km SSW of Ferndale, CaliforniaSun, Sep 11, 1:07 PM PDT · 15728 days ago · 21 km deep · 29 km away
46. 3.466 km W of Ferndale, CaliforniaMon, Sep 12, 7:28 AM PDT · 15727 days ago · 27 km deep · 60 km away
47. 2.215 km NE of Redcrest, CaliforniaMon, Sep 12, 7:18 PM PDT · 15726 days ago · 24 km deep · 48 km away
48. 1.617 km WNW of Hyampom, CaliforniaMon, Sep 12, 7:33 PM PDT · 15726 days ago · 21 km deep · 62 km away
49. 1.726 km SW of Scotia, CaliforniaTue, Sep 13, 2:00 AM PDT · 15726 days ago · 6 km deep · 45 km away
50. 2.211 km SSW of Ferndale, CaliforniaTue, Sep 13, 7:53 PM PDT · 15725 days ago · 26 km deep · 24 km away
51. 1.942 km SW of Ferndale, CaliforniaWed, Sep 14, 2:22 PM PDT · 15724 days ago · 11 km deep · 45 km away
52. 2.618 km NE of Willow Creek, CaliforniaWed, Sep 14, 2:34 PM PDT · 15724 days ago · 34 km deep · 86 km away
53. 3.298 km W of Ferndale, CaliforniaWed, Sep 14, 10:40 PM PDT · 15724 days ago · 19 km deep · 93 km away
54. 1.722 km WSW of Weott, CaliforniaThu, Sep 15, 1:29 AM PDT · 15724 days ago · 8 km deep · 52 km away
55. 2.14 km E of Indianola, CaliforniaThu, Sep 15, 8:38 PM PDT · 15723 days ago · 22 km deep · 16 km away
56. 2.51 km S of Mad River, CaliforniaThu, Sep 15, 10:44 PM PDT · 15723 days ago · 0 km deep · 78 km away
57. 2.335 km SW of Ferndale, CaliforniaFri, Sep 16, 9:32 AM PDT · 15723 days ago · 23 km deep · 43 km away
58. 2.644 km SW of Ferndale, CaliforniaFri, Sep 16, 6:21 PM PDT · 15722 days ago · 23 km deep · 47 km away
59. 2.659 km WSW of Ferndale, CaliforniaFri, Sep 16, 7:51 PM PDT · 15722 days ago · 7 km deep · 58 km away
60. 2.821 km SW of Scotia, CaliforniaSat, Sep 17, 2:18 AM PDT · 15722 days ago · 33 km deep · 38 km away

The first 60 of 131.

Before

1. 2.056 km WSW of Ferndale, CaliforniaSat, Aug 27, 4:35 AM PDT · 15743 days ago · 18 km deep · 56 km away
2. 1.874 km WSW of Ferndale, CaliforniaSat, Aug 27, 12:15 AM PDT · 15743 days ago · 4 km deep · 71 km away
3. 2.736 km SW of Ferndale, CaliforniaFri, Aug 26, 2:23 PM PDT · 15743 days ago · 19 km deep · 44 km away
4. 2.643 km SW of Ferndale, CaliforniaFri, Aug 26, 12:03 PM PDT · 15744 days ago · 21 km deep · 48 km away
5. 1.99 km W of Mad River, CaliforniaFri, Aug 26, 11:10 AM PDT · 15744 days ago · -1 km deep · 69 km away
6. 1.512 km N of Shelter Cove, CaliforniaFri, Aug 26, 8:04 AM PDT · 15744 days ago · 17 km deep · 67 km away
7. 1.935 km SW of Ferndale, CaliforniaFri, Aug 26, 4:54 AM PDT · 15744 days ago · 20 km deep · 43 km away
8. 1.637 km SW of Ferndale, CaliforniaFri, Aug 26, 3:27 AM PDT · 15744 days ago · 21 km deep · 45 km away
9. 1.644 km WNW of Shelter Cove, CaliforniaFri, Aug 26, 3:24 AM PDT · 15744 days ago · 23 km deep · 55 km away
10. 1.731 km SW of Ferndale, CaliforniaFri, Aug 26, 3:04 AM PDT · 15744 days ago · 27 km deep · 37 km away
11. 3.944 km SW of Ferndale, CaliforniaFri, Aug 26, 1:49 AM PDT · 15744 days ago · 16 km deep · 48 km away
12. 3.641 km SW of Ferndale, CaliforniaFri, Aug 26, 1:13 AM PDT · 15744 days ago · 21 km deep · 46 km away
13. 1.6near the coast of Northern CaliforniaFri, Aug 26, 12:10 AM PDT · 15744 days ago · 19 km deep · 47 km away
14. 1.623 km SW of Ferndale, CaliforniaThu, Aug 25, 11:09 PM PDT · 15744 days ago · 24 km deep · 28 km away
15. 1.747 km SW of Ferndale, CaliforniaThu, Aug 25, 10:28 PM PDT · 15744 days ago · 7 km deep · 54 km away
16. 2.642 km SW of Ferndale, CaliforniaThu, Aug 25, 6:32 PM PDT · 15744 days ago · 18 km deep · 47 km away
17. 2.739 km SW of Ferndale, CaliforniaThu, Aug 25, 6:14 PM PDT · 15744 days ago · 21 km deep · 45 km away
18. 2.231 km SW of Scotia, CaliforniaThu, Aug 25, 3:50 PM PDT · 15744 days ago · 21 km deep · 43 km away
19. 2.660 km WSW of Ferndale, CaliforniaThu, Aug 25, 3:47 PM PDT · 15744 days ago · 15 km deep · 58 km away
20. 1.653 km WSW of Ferndale, CaliforniaThu, Aug 25, 3:02 PM PDT · 15744 days ago · 5 km deep · 51 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1101310. Read Sat, Oct 3, 2026, 8:01 AM UTC.