M3.1 earthquake 50 km WSW of Ferndale, California

Magnitude

3.1 (Md, duration), minor

Magnitude from

Northern California Seismic System

Local time

Mon, May 25, 1981, 6:38 AM PDT

UTC

1981-05-25 13:38:59 UTC

Depth

33.6 km (20.9 mi), shallow

Epicenter

40.349° N, 124.776° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 3.7 km horizontally, 2.7 km in depth

Depth from

From location

Station coverage gap

282°, poorly surrounded by stations

Stations used

12

• Ferndale, CaliforniaPopulation 1,369. Forecast50 kmWSW
• Fortuna, CaliforniaPopulation 12,000. Forecast59 kmWSW
• Chico, CaliforniaPopulation 121,345. Forecast260 kmWNW

After

1. 1.914 km NE of Hydesville, CaliforniaMon, May 25, 9:54 AM PDT · 16566 days ago · 24 km deep · 75 km away
2. 1.9Northern CaliforniaMon, May 25, 5:41 PM PDT · 16566 days ago · 22 km deep · 80 km away
3. 4.658 km WSW of Ferndale, CaliforniaTue, May 26, 4:41 AM PDT · 16565 days ago · 2 km deep · 11 km away
4. 3.523 km SSW of Ferndale, CaliforniaTue, May 26, 5:12 AM PDT · 16565 days ago · 27 km deep · 32 km away
5. 2.224 km SW of Ferndale, CaliforniaTue, May 26, 5:20 AM PDT · 16565 days ago · 27 km deep · 28 km away
6. 2.1near the coast of Northern CaliforniaTue, May 26, 7:52 PM PDT · 16565 days ago · 31 km deep · 30 km away
7. 2.873 km WNW of Ferndale, CaliforniaWed, May 27, 2:49 AM PDT · 16564 days ago · 14 km deep · 52 km away
8. 2.341 km SW of Ferndale, CaliforniaWed, May 27, 3:33 AM PDT · 16564 days ago · 21 km deep · 13 km away
9. 2.015 km SSW of Ferndale, CaliforniaWed, May 27, 9:26 AM PDT · 16564 days ago · 28 km deep · 41 km away
10. 2.633 km SW of Ferndale, CaliforniaWed, May 27, 12:12 PM PDT · 16564 days ago · 27 km deep · 22 km away
11. 2.239 km SW of Ferndale, CaliforniaFri, May 29, 2:01 AM PDT · 16562 days ago · 24 km deep · 16 km away
12. 2.843 km SW of Ferndale, CaliforniaFri, May 29, 8:47 AM PDT · 16562 days ago · 21 km deep · 9 km away
13. 2.936 km SW of Ferndale, CaliforniaFri, May 29, 1:58 PM PDT · 16562 days ago · 29 km deep · 20 km away
14. 1.645 km SW of Ferndale, CaliforniaFri, May 29, 11:53 PM PDT · 16561 days ago · 18 km deep · 9 km away
15. 2.322 km WSW of Weott, CaliforniaSun, May 31, 1:16 PM PDT · 16560 days ago · 1 km deep · 54 km away
16. 1.616 km WNW of Samoa, CaliforniaMon, Jun 1, 12:35 PM PDT · 16559 days ago · 22 km deep · 71 km away
17. 2.464 km SW of Ferndale, CaliforniaMon, Jun 1, 5:52 PM PDT · 16559 days ago · 4 km deep · 15 km away
18. 1.631 km SW of Ferndale, CaliforniaMon, Jun 1, 6:14 PM PDT · 16559 days ago · 34 km deep · 25 km away
19. 2.225 km SW of Ferndale, CaliforniaTue, Jun 2, 7:48 AM PDT · 16558 days ago · 19 km deep · 27 km away
20. 1.737 km SW of Ferndale, CaliforniaTue, Jun 2, 2:15 PM PDT · 16558 days ago · 35 km deep · 20 km away
21. 2.225 km SSW of Ferndale, CaliforniaTue, Jun 2, 9:16 PM PDT · 16557 days ago · 27 km deep · 30 km away
22. 2.342 km SW of Ferndale, CaliforniaWed, Jun 3, 2:45 AM PDT · 16557 days ago · 23 km deep · 12 km away
23. 2.610 km WNW of Fields Landing, CaliforniaWed, Jun 3, 12:25 PM PDT · 16557 days ago · 25 km deep · 60 km away
24. 2.137 km WNW of Ferndale, CaliforniaWed, Jun 3, 4:37 PM PDT · 16557 days ago · 20 km deep · 37 km away
25. 2.240 km WNW of Ferndale, CaliforniaWed, Jun 3, 4:47 PM PDT · 16557 days ago · 19 km deep · 36 km away
26. 2.338 km WNW of Indianola, CaliforniaThu, Jun 4, 3:48 AM PDT · 16556 days ago · 9 km deep · 50 km away
27. 2.236 km SW of Ferndale, CaliforniaThu, Jun 4, 12:33 PM PDT · 16556 days ago · 28 km deep · 21 km away
28. 1.57 km WNW of McKinleyville, CaliforniaThu, Jun 4, 2:01 PM PDT · 16556 days ago · 20 km deep · 86 km away
29. 2.637 km SW of Ferndale, CaliforniaFri, Jun 5, 2:20 PM PDT · 16555 days ago · 28 km deep · 17 km away
30. 2.421 km WNW of Ferndale, CaliforniaSat, Jun 6, 12:25 AM PDT · 16554 days ago · 24 km deep · 42 km away
31. 2.384 km WNW of Samoa, CaliforniaSat, Jun 6, 2:46 PM PDT · 16554 days ago · 4 km deep · 82 km away
32. 2.96 km NE of Miranda, CaliforniaSat, Jun 6, 8:17 PM PDT · 16554 days ago · 28 km deep · 86 km away
33. 1.718 km WSW of Scotia, CaliforniaMon, Jun 8, 1:04 AM PDT · 16552 days ago · 28 km deep · 42 km away
34. 2.414 km WNW of Fields Landing, CaliforniaMon, Jun 8, 3:06 AM PDT · 16552 days ago · 24 km deep · 56 km away
35. 2.314 km SSW of Ferndale, CaliforniaMon, Jun 8, 2:06 PM PDT · 16552 days ago · 23 km deep · 41 km away
36. 1.633 km SSW of Ferndale, CaliforniaMon, Jun 8, 4:44 PM PDT · 16552 days ago · 24 km deep · 26 km away
37. 2.554 km WNW of Samoa, CaliforniaTue, Jun 9, 1:50 PM PDT · 16551 days ago · 14 km deep · 69 km away
38. 3.398 km WSW of Ferndale, CaliforniaTue, Jun 9, 2:34 PM PDT · 16551 days ago · 65 km deep · 51 km away
39. 2.197 km WSW of Ferndale, CaliforniaWed, Jun 10, 1:57 AM PDT · 16550 days ago · 7 km deep · 52 km away
40. 1.812 km WSW of Ferndale, CaliforniaWed, Jun 10, 6:27 AM PDT · 16550 days ago · 16 km deep · 38 km away
41. 3.3106 km W of Trinidad, CaliforniaWed, Jun 10, 2:48 PM PDT · 16550 days ago · 11 km deep · 97 km away
42. 2.3111 km W of Ferndale, CaliforniaThu, Jun 11, 12:54 AM PDT · 16549 days ago · 4 km deep · 67 km away
43. 2.22 km SSE of Benbow, CaliforniaThu, Jun 11, 4:41 AM PDT · 16549 days ago · 17 km deep · 91 km away
44. 2.139 km SW of Ferndale, CaliforniaThu, Jun 11, 9:07 AM PDT · 16549 days ago · 28 km deep · 15 km away
45. 2.48 km SSW of Scotia, CaliforniaThu, Jun 11, 7:26 PM PDT · 16549 days ago · 22 km deep · 55 km away
46. 1.6near the coast of Northern CaliforniaThu, Jun 11, 8:53 PM PDT · 16548 days ago · 23 km deep · 30 km away
47. 2.122 km SW of Ferndale, CaliforniaThu, Jun 11, 9:34 PM PDT · 16548 days ago · 22 km deep · 31 km away
48. 2.513 km NW of Manila, CaliforniaFri, Jun 12, 1:29 AM PDT · 16548 days ago · 10 km deep · 76 km away
49. 1.522 km WSW of Ferndale, CaliforniaFri, Jun 12, 1:49 AM PDT · 16548 days ago · 27 km deep · 28 km away
50. 2.6near the coast of Northern CaliforniaFri, Jun 12, 6:07 AM PDT · 16548 days ago · 11 km deep · 76 km away
51. 1.925 km W of Trinidad, CaliforniaFri, Jun 12, 6:45 AM PDT · 16548 days ago · 18 km deep · 80 km away
52. 2.413 km NW of Manila, CaliforniaFri, Jun 12, 7:47 AM PDT · 16548 days ago · 11 km deep · 77 km away
53. 2.014 km NW of Manila, CaliforniaFri, Jun 12, 7:50 AM PDT · 16548 days ago · 10 km deep · 76 km away
54. 2.613 km NW of Manila, CaliforniaFri, Jun 12, 8:53 AM PDT · 16548 days ago · 12 km deep · 76 km away
55. 3.112 km NW of Manila, CaliforniaFri, Jun 12, 12:45 PM PDT · 16548 days ago · 11 km deep · 76 km away
56. 1.616 km NW of Manila, CaliforniaFri, Jun 12, 2:12 PM PDT · 16548 days ago · 9 km deep · 76 km away
57. 2.414 km NW of Manila, CaliforniaFri, Jun 12, 2:12 PM PDT · 16548 days ago · 9 km deep · 76 km away
58. 1.915 km NW of Manila, CaliforniaFri, Jun 12, 10:11 PM PDT · 16547 days ago · 11 km deep · 75 km away
59. 1.65 km NW of Manila, CaliforniaSat, Jun 13, 12:12 AM PDT · 16547 days ago · 1 km deep · 76 km away
60. 1.951 km SW of Ferndale, CaliforniaSat, Jun 13, 4:47 AM PDT · 16547 days ago · 45 km deep · 4 km away

The first 60 of 176.

Before

1. 2.911 km S of Scotia, CaliforniaSat, May 23, 7:10 PM PDT · 16568 days ago · 12 km deep · 56 km away
2. 2.83 km SSW of Scotia, CaliforniaSat, May 23, 7:04 PM PDT · 16568 days ago · 9 km deep · 57 km away
3. 3.338 km SW of Ferndale, CaliforniaSat, May 23, 11:43 AM PDT · 16568 days ago · 27 km deep · 16 km away
4. 2.417 km SW of Mad River, CaliforniaFri, May 22, 5:07 PM PDT · 16569 days ago · 21 km deep · 93 km away
5. 1.617 km ENE of Hydesville, CaliforniaFri, May 22, 7:34 AM PDT · 16569 days ago · 21 km deep · 79 km away
6. 2.117 km SW of Mad River, CaliforniaFri, May 22, 3:36 AM PDT · 16569 days ago · 21 km deep · 94 km away
7. 2.216 km SW of Mad River, CaliforniaFri, May 22, 2:14 AM PDT · 16569 days ago · 22 km deep · 94 km away
8. 4.227 km W of Trinidad, CaliforniaThu, May 21, 6:19 PM PDT · 16570 days ago · 23 km deep · 87 km away
9. 1.816 km NE of Miranda, CaliforniaThu, May 21, 6:34 AM PDT · 16570 days ago · 20 km deep · 92 km away
10. 2.917 km SW of Mad River, CaliforniaThu, May 21, 5:45 AM PDT · 16570 days ago · 22 km deep · 94 km away
11. 2.916 km SW of Mad River, CaliforniaThu, May 21, 5:08 AM PDT · 16570 days ago · 21 km deep · 95 km away
12. 2.23 km NNW of Redway, CaliforniaMon, May 18, 2:35 PM PDT · 16573 days ago · 17 km deep · 83 km away
13. 2.47 km NNW of Manila, CaliforniaMon, May 18, 11:27 AM PDT · 16573 days ago · 6 km deep · 80 km away
14. 3.339 km SW of Ferndale, CaliforniaSun, May 17, 10:21 PM PDT · 16573 days ago · 24 km deep · 15 km away
15. 1.88 km WNW of Indianola, CaliforniaSun, May 17, 11:08 AM PDT · 16574 days ago · 4 km deep · 55 km away
16. 2.911 km W of Indianola, CaliforniaFri, May 15, 8:58 PM PDT · 16575 days ago · 11 km deep · 51 km away
17. 1.811 km W of Indianola, CaliforniaFri, May 15, 7:17 PM PDT · 16576 days ago · 12 km deep · 52 km away
18. 2.214 km WSW of Trinidad, CaliforniaFri, May 15, 4:46 PM PDT · 16576 days ago · 5 km deep · 84 km away
19. 1.634 km SW of Ferndale, CaliforniaFri, May 15, 4:25 PM PDT · 16576 days ago · 23 km deep · 24 km away
20. 1.73 km W of Scotia, CaliforniaFri, May 15, 1:17 PM PDT · 16576 days ago · 20 km deep · 56 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1063989. Read Fri, Oct 2, 2026, 3:09 PM UTC.