M2.1 earthquake 22 km W of Ferndale, California

Magnitude

2.1 (md), micro

Local time

Thu, May 7, 1981, 12:05 PM PDT

UTC

1981-05-07 19:05:35 UTC

Depth

21.3 km (13.3 mi), shallow

Epicenter

40.544° N, 124.524° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.8 km horizontally, 0.4 km in depth

Magnitude uncertainty

±0.16

Depth from

From location

Station coverage gap

260°, poorly surrounded by stations

Stations used

16

• Ferndale, CaliforniaPopulation 1,369. Forecast22 kmW
• Fortuna, CaliforniaPopulation 12,000. Forecast32 kmW
• Chico, CaliforniaPopulation 121,345. Forecast246 kmWNW

After

1. 1.737 km WSW of Ferndale, CaliforniaSat, May 9, 11:22 AM PDT · 16572 days ago · 29 km deep · 19 km away
2. 2.230 km SW of Scotia, CaliforniaSat, May 9, 5:23 PM PDT · 16572 days ago · 18 km deep · 32 km away
3. 1.928 km SW of Ferndale, CaliforniaMon, May 11, 4:20 AM PDT · 16570 days ago · 26 km deep · 16 km away
4. 2.236 km SW of Ferndale, CaliforniaMon, May 11, 5:14 PM PDT · 16570 days ago · 27 km deep · 24 km away
5. 1.816 km ENE of Redcrest, CaliforniaTue, May 12, 1:51 AM PDT · 16570 days ago · 0 km deep · 65 km away
6. 1.629 km SW of Scotia, CaliforniaWed, May 13, 2:16 AM PDT · 16569 days ago · 27 km deep · 31 km away
7. 2.773 km WSW of Ferndale, CaliforniaWed, May 13, 2:35 AM PDT · 16569 days ago · 64 km deep · 51 km away
8. 2.122 km W of Indianola, CaliforniaWed, May 13, 3:15 AM PDT · 16568 days ago · 20 km deep · 18 km away
9. 2.35 km SW of Phillipsville, CaliforniaWed, May 13, 5:25 PM PDT · 16568 days ago · 19 km deep · 73 km away
10. 1.736 km SW of Ferndale, CaliforniaWed, May 13, 9:53 PM PDT · 16568 days ago · 35 km deep · 25 km away
11. 2.23 km W of Blue Lake, CaliforniaThu, May 14, 12:21 AM PDT · 16568 days ago · 0 km deep · 57 km away
12. 1.729 km SSW of Ferndale, CaliforniaThu, May 14, 10:50 AM PDT · 16567 days ago · 35 km deep · 24 km away
13. 2.48 km NE of Mad River, CaliforniaThu, May 14, 1:28 PM PDT · 16567 days ago · 0 km deep · 92 km away
14. 2.425 km SSW of Ferndale, CaliforniaThu, May 14, 3:36 PM PDT · 16567 days ago · 32 km deep · 24 km away
15. 2.378 km WNW of Ferndale, CaliforniaThu, May 14, 3:48 PM PDT · 16567 days ago · 8 km deep · 58 km away
16. 1.625 km SW of Scotia, CaliforniaThu, May 14, 4:11 PM PDT · 16567 days ago · 29 km deep · 26 km away
17. 2.825 km SW of Ferndale, CaliforniaThu, May 14, 7:21 PM PDT · 16567 days ago · 27 km deep · 13 km away
18. 1.71 km NE of Humboldt Hill, CaliforniaFri, May 15, 7:11 AM PDT · 16566 days ago · 1 km deep · 36 km away
19. 1.73 km W of Scotia, CaliforniaFri, May 15, 1:17 PM PDT · 16566 days ago · 20 km deep · 33 km away
20. 1.634 km SW of Ferndale, CaliforniaFri, May 15, 4:25 PM PDT · 16566 days ago · 23 km deep · 25 km away
21. 2.214 km WSW of Trinidad, CaliforniaFri, May 15, 4:46 PM PDT · 16566 days ago · 5 km deep · 55 km away
22. 1.811 km W of Indianola, CaliforniaFri, May 15, 7:17 PM PDT · 16566 days ago · 12 km deep · 21 km away
23. 2.911 km W of Indianola, CaliforniaFri, May 15, 8:58 PM PDT · 16566 days ago · 11 km deep · 21 km away
24. 1.88 km WNW of Indianola, CaliforniaSun, May 17, 11:08 AM PDT · 16564 days ago · 4 km deep · 24 km away
25. 3.339 km SW of Ferndale, CaliforniaSun, May 17, 10:21 PM PDT · 16564 days ago · 24 km deep · 25 km away
26. 2.12 km NW of Willow Creek, CaliforniaMon, May 18, 11:25 AM PDT · 16563 days ago · 5 km deep · 86 km away
27. 2.47 km NNW of Manila, CaliforniaMon, May 18, 11:27 AM PDT · 16563 days ago · 6 km deep · 50 km away
28. 2.23 km NNW of Redway, CaliforniaMon, May 18, 2:35 PM PDT · 16563 days ago · 17 km deep · 73 km away
29. 2.916 km SW of Mad River, CaliforniaThu, May 21, 5:08 AM PDT · 16560 days ago · 21 km deep · 76 km away
30. 2.917 km SW of Mad River, CaliforniaThu, May 21, 5:45 AM PDT · 16560 days ago · 22 km deep · 75 km away
31. 1.816 km NE of Miranda, CaliforniaThu, May 21, 6:34 AM PDT · 16560 days ago · 20 km deep · 73 km away
32. 4.227 km W of Trinidad, CaliforniaThu, May 21, 6:19 PM PDT · 16560 days ago · 23 km deep · 61 km away
33. 2.216 km SW of Mad River, CaliforniaFri, May 22, 2:14 AM PDT · 16560 days ago · 22 km deep · 76 km away
34. 1.57 km SSW of Mad River, CaliforniaFri, May 22, 2:15 AM PDT · 16560 days ago · 27 km deep · 85 km away
35. 2.117 km SW of Mad River, CaliforniaFri, May 22, 3:36 AM PDT · 16559 days ago · 21 km deep · 75 km away
36. 1.617 km ENE of Hydesville, CaliforniaFri, May 22, 7:34 AM PDT · 16559 days ago · 21 km deep · 52 km away
37. 2.417 km SW of Mad River, CaliforniaFri, May 22, 5:07 PM PDT · 16559 days ago · 21 km deep · 75 km away
38. 3.338 km SW of Ferndale, CaliforniaSat, May 23, 11:43 AM PDT · 16558 days ago · 27 km deep · 24 km away
39. 2.83 km SSW of Scotia, CaliforniaSat, May 23, 7:04 PM PDT · 16558 days ago · 9 km deep · 35 km away
40. 2.911 km S of Scotia, CaliforniaSat, May 23, 7:10 PM PDT · 16558 days ago · 12 km deep · 39 km away
41. 3.150 km WSW of Ferndale, CaliforniaMon, May 25, 6:38 AM PDT · 16556 days ago · 34 km deep · 30 km away
42. 1.914 km NE of Hydesville, CaliforniaMon, May 25, 9:54 AM PDT · 16556 days ago · 24 km deep · 49 km away
43. 1.9Northern CaliforniaMon, May 25, 5:41 PM PDT · 16556 days ago · 22 km deep · 56 km away
44. 4.658 km WSW of Ferndale, CaliforniaTue, May 26, 4:41 AM PDT · 16555 days ago · 2 km deep · 38 km away
45. 3.523 km SSW of Ferndale, CaliforniaTue, May 26, 5:12 AM PDT · 16555 days ago · 27 km deep · 19 km away
46. 2.224 km SW of Ferndale, CaliforniaTue, May 26, 5:20 AM PDT · 16555 days ago · 27 km deep · 15 km away
47. 2.1near the coast of Northern CaliforniaTue, May 26, 7:52 PM PDT · 16555 days ago · 31 km deep · 16 km away
48. 2.873 km WNW of Ferndale, CaliforniaWed, May 27, 2:49 AM PDT · 16555 days ago · 14 km deep · 54 km away
49. 2.341 km SW of Ferndale, CaliforniaWed, May 27, 3:33 AM PDT · 16554 days ago · 21 km deep · 26 km away
50. 2.015 km SSW of Ferndale, CaliforniaWed, May 27, 9:26 AM PDT · 16554 days ago · 28 km deep · 22 km away
51. 2.633 km SW of Ferndale, CaliforniaWed, May 27, 12:12 PM PDT · 16554 days ago · 27 km deep · 22 km away
52. 3.013 km W of Ruth, CaliforniaThu, May 28, 7:55 AM PDT · 16553 days ago · 22 km deep · 93 km away
53. 2.239 km SW of Ferndale, CaliforniaFri, May 29, 2:01 AM PDT · 16553 days ago · 24 km deep · 25 km away
54. 2.843 km SW of Ferndale, CaliforniaFri, May 29, 8:47 AM PDT · 16552 days ago · 21 km deep · 25 km away
55. 2.936 km SW of Ferndale, CaliforniaFri, May 29, 1:58 PM PDT · 16552 days ago · 29 km deep · 24 km away
56. 2.27 km E of Hyampom, CaliforniaFri, May 29, 10:09 PM PDT · 16552 days ago · 4 km deep · 98 km away
57. 1.645 km SW of Ferndale, CaliforniaFri, May 29, 11:53 PM PDT · 16552 days ago · 18 km deep · 28 km away
58. 3.711 km SW of Willow Creek, CaliforniaSat, May 30, 8:36 PM PDT · 16551 days ago · 28 km deep · 75 km away
59. 2.322 km WSW of Weott, CaliforniaSun, May 31, 1:16 PM PDT · 16550 days ago · 1 km deep · 47 km away
60. 1.616 km WNW of Samoa, CaliforniaMon, Jun 1, 12:35 PM PDT · 16549 days ago · 22 km deep · 42 km away

The first 60 of 186.

Before

1. 2.29 km ESE of Hyampom, CaliforniaThu, May 7, 11:27 AM PDT · 16574 days ago · 21 km deep · 99 km away
2. 3.437 km SW of Ferndale, CaliforniaMon, May 4, 11:03 PM PDT · 16577 days ago · 26 km deep · 25 km away
3. 3.295 km W of Ferndale, CaliforniaMon, May 4, 6:06 PM PDT · 16577 days ago · 8 km deep · 73 km away
4. 2.597 km WSW of Ferndale, CaliforniaMon, May 4, 4:40 PM PDT · 16577 days ago · 5 km deep · 75 km away
5. 1.816 km E of Hydesville, CaliforniaSun, May 3, 8:30 PM PDT · 16578 days ago · 92 km deep · 53 km away
6. 2.20 km SE of Trinity Village, CaliforniaSun, May 3, 8:27 PM PDT · 16578 days ago · 5 km deep · 92 km away
7. 1.69 km W of Mad River, CaliforniaSun, May 3, 1:30 PM PDT · 16578 days ago · 4 km deep · 77 km away
8. 2.230 km WSW of Ferndale, CaliforniaSun, May 3, 10:59 AM PDT · 16578 days ago · 23 km deep · 10 km away
9. 1.522 km SSW of Ferndale, CaliforniaSun, May 3, 8:27 AM PDT · 16578 days ago · 21 km deep · 23 km away
10. 2.434 km SW of Ferndale, CaliforniaSun, May 3, 5:30 AM PDT · 16578 days ago · 28 km deep · 23 km away
11. 1.914 km WSW of Ferndale, CaliforniaSat, May 2, 10:50 AM PDT · 16579 days ago · 19 km deep · 11 km away
12. 2.226 km WNW of Manila, CaliforniaSat, May 2, 5:04 AM PDT · 16579 days ago · 2 km deep · 47 km away
13. 1.811 km SW of Ferndale, CaliforniaFri, May 1, 11:07 AM PDT · 16580 days ago · 25 km deep · 13 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1063386. Read Tue, Sep 22, 2026, 9:38 PM UTC.