M2.4 earthquake 101 km W of Ferndale, California

Magnitude

2.4 (md), micro

Local time

Thu, Nov 19, 1981, 10:46 PM PST

UTC

1981-11-20 06:46:18 UTC

Depth

4.7 km (2.9 mi), shallow

Epicenter

40.439° N, 125.442° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 4.8 km horizontally, 12.2 km in depth

Magnitude uncertainty

±0.09

Depth from

From location

Station coverage gap

291°, poorly surrounded by stations

Stations used

15

• Ferndale, CaliforniaPopulation 1,369. Forecast101 kmW
• Fortuna, CaliforniaPopulation 12,000. Forecast110 kmW
• Chico, CaliforniaPopulation 121,345. Forecast317 kmWNW

After

1. 3.833 km W of Ferndale, CaliforniaFri, Nov 20, 3:59 PM PST · 16376 days ago · 25 km deep · 68 km away
2. 2.037 km SW of Ferndale, CaliforniaFri, Nov 20, 6:59 PM PST · 16376 days ago · 15 km deep · 72 km away
3. 3.1101 km W of Indianola, CaliforniaMon, Nov 23, 4:54 AM PST · 16374 days ago · 5 km deep · 43 km away
4. 3.231 km SW of Ferndale, CaliforniaTue, Nov 24, 10:37 AM PST · 16373 days ago · 28 km deep · 77 km away
5. 2.350 km SW of Ferndale, CaliforniaWed, Nov 25, 3:44 AM PST · 16372 days ago · 19 km deep · 61 km away
6. 1.941 km SW of Ferndale, CaliforniaWed, Nov 25, 4:34 AM PST · 16372 days ago · 22 km deep · 71 km away
7. 3.121 km SW of Ferndale, CaliforniaWed, Nov 25, 6:33 AM PST · 16372 days ago · 23 km deep · 84 km away
8. 2.636 km SW of Ferndale, CaliforniaSat, Nov 28, 11:28 AM PST · 16369 days ago · 27 km deep · 79 km away
9. 2.8161 km W of Ferndale, CaliforniaSun, Nov 29, 9:33 AM PST · 16368 days ago · 5 km deep · 63 km away
10. 3.036 km WSW of Ferndale, CaliforniaSun, Nov 29, 3:41 PM PST · 16367 days ago · 38 km deep · 69 km away
11. 1.6174 km W of Ferndale, CaliforniaMon, Nov 30, 3:01 PM PST · 16366 days ago · 5 km deep · 77 km away
12. 2.435 km SSW of Ferndale, CaliforniaTue, Dec 1, 1:51 AM PST · 16366 days ago · 10 km deep · 86 km away
13. 1.515 km WNW of Ferndale, CaliforniaWed, Dec 2, 1:57 AM PST · 16365 days ago · 20 km deep · 86 km away
14. 2.449 km SW of Ferndale, CaliforniaWed, Dec 2, 2:53 AM PST · 16365 days ago · 23 km deep · 61 km away
15. 2.130 km SW of Scotia, CaliforniaWed, Dec 2, 5:05 AM PST · 16365 days ago · 22 km deep · 92 km away
16. 3.872 km W of Ferndale, CaliforniaWed, Dec 2, 10:46 AM PST · 16365 days ago · 43 km deep · 34 km away
17. 3.7109 km W of Ferndale, CaliforniaWed, Dec 2, 10:48 AM PST · 16365 days ago · 5 km deep · 30 km away
18. 1.737 km SW of Ferndale, CaliforniaWed, Dec 2, 4:08 PM PST · 16364 days ago · 31 km deep · 76 km away
19. 1.927 km SSW of Ferndale, CaliforniaSat, Dec 5, 9:15 AM PST · 16362 days ago · 19 km deep · 88 km away
20. 2.337 km SSW of Ferndale, CaliforniaWed, Dec 9, 3:37 PM PST · 16357 days ago · 19 km deep · 81 km away
21. 2.935 km SSW of Ferndale, CaliforniaFri, Dec 11, 2:11 AM PST · 16356 days ago · 32 km deep · 84 km away
22. 3.012 km W of Ferndale, CaliforniaFri, Dec 11, 5:16 PM PST · 16355 days ago · 21 km deep · 89 km away
23. 1.825 km WSW of Ferndale, CaliforniaSun, Dec 13, 4:46 PM PST · 16353 days ago · 25 km deep · 78 km away
24. 2.348 km W of Ferndale, CaliforniaMon, Dec 14, 5:02 AM PST · 16353 days ago · 14 km deep · 55 km away
25. 1.726 km SW of Ferndale, CaliforniaTue, Dec 15, 3:14 PM PST · 16351 days ago · 38 km deep · 79 km away
26. 1.723 km WSW of Ferndale, CaliforniaTue, Dec 15, 3:46 PM PST · 16351 days ago · 25 km deep · 80 km away
27. 2.022 km WSW of Ferndale, CaliforniaTue, Dec 15, 3:50 PM PST · 16351 days ago · 25 km deep · 80 km away
28. 2.528 km SSW of Ferndale, CaliforniaWed, Dec 16, 2:57 AM PST · 16351 days ago · 18 km deep · 85 km away
29. 1.810 km SSW of Ferndale, CaliforniaWed, Dec 16, 9:50 AM PST · 16351 days ago · 27 km deep · 95 km away
30. 2.541 km WSW of Ferndale, CaliforniaWed, Dec 16, 3:30 PM PST · 16350 days ago · 7 km deep · 60 km away
31. 2.066 km WSW of Ferndale, CaliforniaFri, Dec 18, 2:53 AM PST · 16349 days ago · 5 km deep · 38 km away
32. 1.936 km WSW of Ferndale, CaliforniaFri, Dec 18, 8:59 AM PST · 16349 days ago · 23 km deep · 65 km away
33. 2.444 km SW of Ferndale, CaliforniaFri, Dec 18, 10:27 AM PST · 16349 days ago · 18 km deep · 68 km away
34. 2.815 km SW of Ferndale, CaliforniaFri, Dec 18, 3:52 PM PST · 16348 days ago · 22 km deep · 89 km away
35. 1.541 km SW of Ferndale, CaliforniaSun, Dec 20, 6:12 AM PST · 16347 days ago · 15 km deep · 77 km away
36. 2.149 km SW of Ferndale, CaliforniaMon, Dec 21, 11:04 AM PST · 16346 days ago · 25 km deep · 63 km away
37. 2.337 km SW of Ferndale, CaliforniaWed, Dec 23, 1:49 PM PST · 16343 days ago · 22 km deep · 80 km away
38. 2.0108 km W of Ferndale, CaliforniaWed, Dec 23, 3:03 PM PST · 16343 days ago · 4 km deep · 8 km away
39. 3.538 km SW of Ferndale, CaliforniaSat, Dec 26, 3:42 AM PST · 16341 days ago · 27 km deep · 76 km away
40. 2.536 km SW of Ferndale, CaliforniaSun, Dec 27, 3:17 AM PST · 16340 days ago · 26 km deep · 77 km away
41. 1.84 km WSW of Ferndale, CaliforniaMon, Dec 28, 12:58 AM PST · 16339 days ago · 7 km deep · 96 km away
42. 1.819 km WSW of Ferndale, CaliforniaWed, Dec 30, 7:58 PM PST · 16336 days ago · 23 km deep · 82 km away
43. 2.9141 km W of Ferndale, CaliforniaThu, Dec 31, 7:05 PM PST · 16335 days ago · 5 km deep · 42 km away
44. 2.69 km WSW of Indianola, CaliforniaThu, Dec 31, 8:29 PM PST · 16335 days ago · 11 km deep · 96 km away
45. 1.732 km SW of Scotia, CaliforniaSun, Jan 3, 4:51 AM PST · 16333 days ago · 5 km deep · 89 km away
46. 1.932 km SW of Scotia, CaliforniaSun, Jan 3, 9:14 AM PST · 16333 days ago · 20 km deep · 92 km away
47. 1.516 km WSW of Ferndale, CaliforniaMon, Jan 4, 12:07 AM PST · 16332 days ago · 20 km deep · 86 km away
48. 2.3111 km W of Ferndale, CaliforniaMon, Jan 4, 11:24 AM PST · 16332 days ago · 5 km deep · 11 km away
49. 1.651 km SW of Ferndale, CaliforniaTue, Jan 5, 8:48 AM PST · 16331 days ago · 13 km deep · 59 km away
50. 1.635 km SSW of Ferndale, CaliforniaWed, Jan 6, 4:37 AM PST · 16330 days ago · 27 km deep · 85 km away
51. 2.538 km SW of Ferndale, CaliforniaWed, Jan 6, 7:32 AM PST · 16330 days ago · 21 km deep · 77 km away
52. 2.977 km WSW of Ferndale, CaliforniaWed, Jan 6, 7:13 PM PST · 16329 days ago · 8 km deep · 27 km away
53. 3.325 km SW of Ferndale, CaliforniaThu, Jan 7, 5:16 AM PST · 16329 days ago · 19 km deep · 86 km away
54. 2.417 km WSW of Ferndale, CaliforniaFri, Jan 8, 3:30 AM PST · 16328 days ago · 22 km deep · 84 km away
55. 1.630 km WNW of Ferndale, CaliforniaFri, Jan 8, 7:53 AM PST · 16328 days ago · 28 km deep · 75 km away
56. 3.832 km SW of Scotia, CaliforniaFri, Jan 8, 12:41 PM PST · 16328 days ago · 23 km deep · 92 km away
57. 2.633 km SW of Scotia, CaliforniaFri, Jan 8, 1:26 PM PST · 16327 days ago · 23 km deep · 92 km away
58. 3.433 km SW of Scotia, CaliforniaFri, Jan 8, 2:23 PM PST · 16327 days ago · 23 km deep · 91 km away
59. 2.439 km WNW of Samoa, CaliforniaFri, Jan 8, 8:15 PM PST · 16327 days ago · 25 km deep · 92 km away
60. 1.629 km SW of Scotia, CaliforniaSun, Jan 10, 8:44 AM PST · 16326 days ago · 20 km deep · 96 km away

The first 60 of 67.

Before

1. 2.438 km SW of Ferndale, CaliforniaThu, Nov 19, 10:04 PM PST · 16377 days ago · 24 km deep · 77 km away
2. 1.710 km W of Indianola, CaliforniaThu, Nov 19, 11:58 AM PST · 16378 days ago · 19 km deep · 96 km away
3. 2.051 km SW of Ferndale, CaliforniaWed, Nov 18, 6:56 PM PST · 16378 days ago · 17 km deep · 64 km away
4. 2.652 km W of Ferndale, CaliforniaSun, Nov 15, 5:18 PM PST · 16381 days ago · 14 km deep · 52 km away
5. 2.919 km WSW of Ferndale, CaliforniaSat, Nov 14, 1:29 PM PST · 16382 days ago · 24 km deep · 84 km away
6. 2.834 km SSW of Ferndale, CaliforniaSat, Nov 14, 6:49 AM PST · 16383 days ago · 30 km deep · 82 km away
7. 1.741 km SSW of Ferndale, CaliforniaFri, Nov 13, 2:40 AM PST · 16384 days ago · 15 km deep · 82 km away
8. 1.524 km SW of Ferndale, CaliforniaThu, Nov 12, 4:31 PM PST · 16384 days ago · 17 km deep · 84 km away
9. 3.238 km SW of Ferndale, CaliforniaWed, Nov 11, 9:52 AM PST · 16386 days ago · 26 km deep · 77 km away
10. 4.036 km SW of Ferndale, CaliforniaWed, Nov 11, 9:46 AM PST · 16386 days ago · 27 km deep · 76 km away
11. 2.840 km SW of Ferndale, CaliforniaWed, Nov 11, 7:53 AM PST · 16386 days ago · 24 km deep · 71 km away
12. 2.639 km SW of Ferndale, CaliforniaWed, Nov 11, 5:23 AM PST · 16386 days ago · 35 km deep · 71 km away
13. 2.9near the coast of Northern CaliforniaWed, Nov 11, 5:06 AM PST · 16386 days ago · 23 km deep · 71 km away
14. 1.529 km SSW of Ferndale, CaliforniaTue, Nov 10, 11:38 PM PST · 16386 days ago · 31 km deep · 87 km away
15. 2.538 km SW of Ferndale, CaliforniaTue, Nov 10, 7:18 PM PST · 16386 days ago · 21 km deep · 75 km away
16. 2.738 km SW of Ferndale, CATue, Nov 10, 4:07 PM PST · 16386 days ago · 27 km deep · 76 km away
17. 1.730 km SSW of Ferndale, CaliforniaTue, Nov 10, 12:25 PM PST · 16387 days ago · 32 km deep · 84 km away
18. 2.238 km SW of Ferndale, CaliforniaTue, Nov 10, 11:35 AM PST · 16387 days ago · 27 km deep · 75 km away
19. 2.8125 km W of Ferndale, CaliforniaTue, Nov 10, 8:22 AM PST · 16387 days ago · 5 km deep · 26 km away
20. 1.734 km SW of Ferndale, CaliforniaTue, Nov 10, 5:43 AM PST · 16387 days ago · 35 km deep · 81 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1069594. Read Tue, Sep 22, 2026, 8:40 AM UTC.