M1.8 earthquake 34 km SW of Ferndale, California

Magnitude

1.8 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Wed, Aug 24, 1983, 7:38 PM PDT

UTC

1983-08-25 02:38:20 UTC

Depth

17.4 km (10.8 mi), shallow

Epicenter

40.324° N, 124.498° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.1 km horizontally, 0.8 km in depth

Magnitude uncertainty

±0.13

Depth from

From location

Station coverage gap

281°, poorly surrounded by stations

Stations used

5

• Ferndale, CaliforniaPopulation 1,369. Forecast34 kmSW
• Fortuna, CaliforniaPopulation 12,000. Forecast42 kmSW
• Chico, CaliforniaPopulation 121,345. Forecast236 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast890 kmNW

After

1. 1.911 km WSW of Scotia, CaliforniaWed, Aug 24, 7:48 PM PDT · 15745 days ago · 8 km deep · 27 km away
2. 1.834 km SW of Ferndale, CaliforniaWed, Aug 24, 9:16 PM PDT · 15745 days ago · 39 km deep · 5 km away
3. 1.731 km SSW of Ferndale, CaliforniaWed, Aug 24, 10:12 PM PDT · 15745 days ago · 28 km deep · 8 km away
4. 2.16 km S of Ferndale, CaliforniaWed, Aug 24, 11:18 PM PDT · 15745 days ago · 23 km deep · 30 km away
5. 1.513 km SW of Scotia, CaliforniaThu, Aug 25, 12:36 AM PDT · 15745 days ago · 28 km deep · 25 km away
6. 2.411 km SSE of Ferndale, CaliforniaThu, Aug 25, 1:15 AM PDT · 15745 days ago · 0 km deep · 28 km away
7. 2.749 km SW of Ferndale, CaliforniaThu, Aug 25, 2:42 AM PDT · 15745 days ago · 16 km deep · 21 km away
8. 2.940 km SW of Ferndale, CaliforniaThu, Aug 25, 4:16 AM PDT · 15745 days ago · 22 km deep · 9 km away
9. 1.56 km WSW of Scotia, CaliforniaThu, Aug 25, 4:25 AM PDT · 15745 days ago · 28 km deep · 31 km away
10. 1.735 km SSW of Ferndale, CaliforniaThu, Aug 25, 6:53 AM PDT · 15745 days ago · 22 km deep · 7 km away
11. 3.037 km SW of Ferndale, CaliforniaThu, Aug 25, 8:38 AM PDT · 15744 days ago · 22 km deep · 5 km away
12. 3.131 km SW of Ferndale, CaliforniaThu, Aug 25, 8:45 AM PDT · 15744 days ago · 22 km deep · 3 km away
13. 1.612 km N of Shelter Cove, CaliforniaThu, Aug 25, 11:19 AM PDT · 15744 days ago · 22 km deep · 42 km away
14. 2.031 km SW of Ferndale, CaliforniaThu, Aug 25, 12:50 PM PDT · 15744 days ago · 22 km deep · 11 km away
15. 1.653 km WSW of Ferndale, CaliforniaThu, Aug 25, 3:02 PM PDT · 15744 days ago · 5 km deep · 32 km away
16. 2.660 km WSW of Ferndale, CaliforniaThu, Aug 25, 3:47 PM PDT · 15744 days ago · 15 km deep · 36 km away
17. 2.231 km SW of Scotia, CaliforniaThu, Aug 25, 3:50 PM PDT · 15744 days ago · 21 km deep · 10 km away
18. 2.739 km SW of Ferndale, CaliforniaThu, Aug 25, 6:14 PM PDT · 15744 days ago · 21 km deep · 8 km away
19. 2.642 km SW of Ferndale, CaliforniaThu, Aug 25, 6:32 PM PDT · 15744 days ago · 18 km deep · 12 km away
20. 1.747 km SW of Ferndale, CaliforniaThu, Aug 25, 10:28 PM PDT · 15744 days ago · 7 km deep · 13 km away
21. 1.623 km SW of Ferndale, CaliforniaThu, Aug 25, 11:09 PM PDT · 15744 days ago · 24 km deep · 14 km away
22. 1.6near the coast of Northern CaliforniaFri, Aug 26, 12:10 AM PDT · 15744 days ago · 19 km deep · 12 km away
23. 3.641 km SW of Ferndale, CaliforniaFri, Aug 26, 1:13 AM PDT · 15744 days ago · 21 km deep · 11 km away
24. 3.944 km SW of Ferndale, CaliforniaFri, Aug 26, 1:49 AM PDT · 15744 days ago · 16 km deep · 15 km away
25. 1.731 km SW of Ferndale, CaliforniaFri, Aug 26, 3:04 AM PDT · 15744 days ago · 27 km deep · 8 km away
26. 1.644 km WNW of Shelter Cove, CaliforniaFri, Aug 26, 3:24 AM PDT · 15744 days ago · 23 km deep · 13 km away
27. 1.637 km SW of Ferndale, CaliforniaFri, Aug 26, 3:27 AM PDT · 15744 days ago · 21 km deep · 3 km away
28. 1.935 km SW of Ferndale, CaliforniaFri, Aug 26, 4:54 AM PDT · 15744 days ago · 20 km deep · 2 km away
29. 1.512 km N of Shelter Cove, CaliforniaFri, Aug 26, 8:04 AM PDT · 15744 days ago · 17 km deep · 43 km away
30. 1.99 km W of Mad River, CaliforniaFri, Aug 26, 11:10 AM PDT · 15743 days ago · -1 km deep · 76 km away
31. 2.643 km SW of Ferndale, CaliforniaFri, Aug 26, 12:03 PM PDT · 15743 days ago · 21 km deep · 13 km away
32. 2.736 km SW of Ferndale, CaliforniaFri, Aug 26, 2:23 PM PDT · 15743 days ago · 19 km deep · 2 km away
33. 1.874 km WSW of Ferndale, CaliforniaSat, Aug 27, 12:15 AM PDT · 15743 days ago · 4 km deep · 50 km away
34. 2.056 km WSW of Ferndale, CaliforniaSat, Aug 27, 4:35 AM PDT · 15743 days ago · 18 km deep · 31 km away
35. 2.111 km W of Indianola, CaliforniaSat, Aug 27, 4:38 AM PDT · 15743 days ago · 19 km deep · 42 km away
36. 2.021 km SSW of Ferndale, CaliforniaSat, Aug 27, 12:32 PM PDT · 15742 days ago · 26 km deep · 15 km away
37. 1.846 km SW of Ferndale, CaliforniaSat, Aug 27, 1:32 PM PDT · 15742 days ago · 5 km deep · 13 km away
38. 2.030 km NW of Shelter Cove, CaliforniaSat, Aug 27, 8:11 PM PDT · 15742 days ago · 30 km deep · 18 km away
39. 3.038 km SW of Ferndale, CaliforniaSun, Aug 28, 4:29 AM PDT · 15742 days ago · 20 km deep · 7 km away
40. 2.870 km W of Ferndale, CaliforniaSun, Aug 28, 5:58 AM PDT · 15742 days ago · 8 km deep · 65 km away
41. 1.529 km WSW of Ferndale, CaliforniaSun, Aug 28, 6:16 AM PDT · 15742 days ago · 17 km deep · 19 km away
42. 1.53 km SSE of Ferndale, CaliforniaSun, Aug 28, 7:21 AM PDT · 15742 days ago · 26 km deep · 32 km away
43. 2.348 km WSW of Ferndale, CaliforniaSun, Aug 28, 12:43 PM PDT · 15741 days ago · 20 km deep · 21 km away
44. 3.537 km SSW of Ferndale, CaliforniaSun, Aug 28, 8:38 PM PDT · 15741 days ago · 20 km deep · 4 km away
45. 2.035 km SSW of Ferndale, CaliforniaMon, Aug 29, 12:29 AM PDT · 15741 days ago · 20 km deep · 3 km away
46. 1.614 km SW of Scotia, CaliforniaMon, Aug 29, 12:57 AM PDT · 15741 days ago · 38 km deep · 26 km away
47. 2.843 km SW of Ferndale, CaliforniaMon, Aug 29, 11:47 AM PDT · 15740 days ago · 22 km deep · 13 km away
48. 2.833 km SSW of Ferndale, CaliforniaMon, Aug 29, 3:31 PM PDT · 15740 days ago · 24 km deep · 5 km away
49. 3.643 km SW of Ferndale, CaliforniaTue, Aug 30, 3:13 AM PDT · 15740 days ago · 20 km deep · 16 km away
50. 2.033 km SW of Scotia, CaliforniaTue, Aug 30, 3:37 PM PDT · 15739 days ago · 17 km deep · 10 km away
51. 2.736 km SSW of Ferndale, CaliforniaWed, Aug 31, 1:26 AM PDT · 15739 days ago · 20 km deep · 4 km away
52. 3.044 km SW of Ferndale, CaliforniaWed, Aug 31, 3:34 AM PDT · 15739 days ago · 21 km deep · 16 km away
53. 2.435 km SSW of Ferndale, CaliforniaWed, Aug 31, 8:38 AM PDT · 15738 days ago · 18 km deep · 4 km away
54. 1.543 km SW of Ferndale, CaliforniaWed, Aug 31, 11:43 AM PDT · 15738 days ago · 26 km deep · 9 km away
55. 2.141 km SW of Ferndale, CaliforniaWed, Aug 31, 1:47 PM PDT · 15738 days ago · 10 km deep · 7 km away
56. 1.833 km SW of Ferndale, CaliforniaWed, Aug 31, 7:40 PM PDT · 15738 days ago · 17 km deep · 8 km away
57. 2.742 km SW of Ferndale, CaliforniaWed, Aug 31, 10:01 PM PDT · 15738 days ago · 23 km deep · 12 km away
58. 1.732 km SW of Ferndale, CaliforniaThu, Sep 1, 6:58 PM PDT · 15737 days ago · 21 km deep · 2 km away
59. 2.365 km WSW of Ferndale, CaliforniaThu, Sep 1, 10:05 PM PDT · 15737 days ago · 37 km deep · 40 km away
60. 2.873 km WSW of Ferndale, CaliforniaFri, Sep 2, 12:20 PM PDT · 15736 days ago · 42 km deep · 52 km away

The first 60 of 164.

Before

1. 2.110 km S of Ferndale, CaliforniaWed, Aug 24, 7:34 PM PDT · 15745 days ago · -1 km deep · 28 km away
2. 2.844 km SW of Ferndale, CaliforniaWed, Aug 24, 7:32 PM PDT · 15745 days ago · 26 km deep · 15 km away
3. 1.841 km SW of Ferndale, CaliforniaWed, Aug 24, 6:00 PM PDT · 15745 days ago · 27 km deep · 10 km away
4. 2.017 km S of Ferndale, CaliforniaWed, Aug 24, 5:49 PM PDT · 15745 days ago · 28 km deep · 21 km away
5. 2.816 km WSW of Scotia, CaliforniaWed, Aug 24, 5:43 PM PDT · 15745 days ago · 29 km deep · 22 km away
6. 1.68 km SSE of Ferndale, CaliforniaWed, Aug 24, 5:39 PM PDT · 15745 days ago · 19 km deep · 32 km away
7. 2.116 km WSW of Scotia, CaliforniaWed, Aug 24, 5:36 PM PDT · 15745 days ago · 29 km deep · 22 km away
8. 2.752 km WSW of Ferndale, CaliforniaWed, Aug 24, 5:31 PM PDT · 15745 days ago · 20 km deep · 27 km away
9. 3.012 km SW of Scotia, CaliforniaWed, Aug 24, 5:26 PM PDT · 15745 days ago · 27 km deep · 26 km away
10. 3.040 km SW of Ferndale, CaliforniaWed, Aug 24, 4:42 PM PDT · 15745 days ago · 21 km deep · 10 km away
11. 2.233 km SSW of Ferndale, CaliforniaWed, Aug 24, 4:38 PM PDT · 15745 days ago · 18 km deep · 5 km away
12. 1.935 km SW of Scotia, CaliforniaWed, Aug 24, 4:35 PM PDT · 15745 days ago · 20 km deep · 8 km away
13. 2.015 km SSW of Scotia, CaliforniaWed, Aug 24, 4:16 PM PDT · 15745 days ago · 34 km deep · 29 km away
14. 2.027 km SW of Ferndale, CaliforniaWed, Aug 24, 2:28 PM PDT · 15745 days ago · 25 km deep · 12 km away
15. 1.936 km SW of Ferndale, CaliforniaWed, Aug 24, 2:06 PM PDT · 15745 days ago · 4 km deep · 2 km away
16. 1.9near the coast of Northern CaliforniaWed, Aug 24, 2:00 PM PDT · 15745 days ago · 5 km deep · 10 km away
17. 1.929 km SW of Scotia, CaliforniaWed, Aug 24, 1:45 PM PDT · 15745 days ago · 16 km deep · 15 km away
18. 3.026 km WSW of Ferndale, CaliforniaWed, Aug 24, 1:38 PM PDT · 15745 days ago · 21 km deep · 16 km away
19. 1.627 km WSW of Ferndale, CaliforniaWed, Aug 24, 1:22 PM PDT · 15745 days ago · 23 km deep · 14 km away
20. 2.737 km SW of Ferndale, CaliforniaWed, Aug 24, 1:11 PM PDT · 15745 days ago · 22 km deep · 5 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1101092. Read Sat, Oct 3, 2026, 2:57 AM UTC.