M2.9 earthquake 36 km SSW of Ferndale, California

Magnitude

2.9 (md), micro

Local time

Fri, Oct 23, 1981, 2:20 AM PDT

UTC

1981-10-23 09:20:11 UTC

Depth

12.0 km (7.5 mi), shallow

Epicenter

40.287° N, 124.479° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.1 km horizontally, 0.4 km in depth

Magnitude uncertainty

±0.14

Depth from

From location

Station coverage gap

251°, poorly surrounded by stations

Stations used

25

• Ferndale, CaliforniaPopulation 1,369. Forecast37 kmSSW
• Fortuna, CaliforniaPopulation 12,000. Forecast44 kmSW
• Chico, CaliforniaPopulation 121,345. Forecast233 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast886 kmNW

After

1. 2.015 km SSW of Ferndale, CaliforniaFri, Oct 23, 3:26 PM PDT · 16405 days ago · 23 km deep · 21 km away
2. 2.416 km SSW of Ferndale, CaliforniaFri, Oct 23, 3:27 PM PDT · 16405 days ago · 23 km deep · 20 km away
3. 2.966 km W of Indianola, CaliforniaFri, Oct 23, 3:50 PM PDT · 16404 days ago · 5 km deep · 71 km away
4. 2.256 km WSW of Ferndale, CaliforniaFri, Oct 23, 6:50 PM PDT · 16404 days ago · 23 km deep · 33 km away
5. 2.619 km WSW of Scotia, CaliforniaSat, Oct 24, 5:41 AM PDT · 16404 days ago · 26 km deep · 19 km away
6. 3.136 km SW of Ferndale, CaliforniaSat, Oct 24, 9:10 AM PDT · 16404 days ago · 28 km deep · 7 km away
7. 1.730 km W of Trinidad, CaliforniaSun, Oct 25, 5:21 AM PST · 16403 days ago · 3 km deep · 89 km away
8. 3.837 km SW of Ferndale, CaliforniaSun, Oct 25, 9:18 AM PST · 16403 days ago · 28 km deep · 9 km away
9. 2.936 km SW of Ferndale, CaliforniaSun, Oct 25, 9:21 AM PST · 16403 days ago · 27 km deep · 7 km away
10. 1.837 km SW of Ferndale, CaliforniaSun, Oct 25, 10:01 AM PST · 16403 days ago · 28 km deep · 10 km away
11. 2.419 km W of Big Lagoon, CaliforniaMon, Oct 26, 5:06 AM PST · 16402 days ago · 27 km deep · 98 km away
12. 1.632 km SW of Ferndale, CaliforniaMon, Oct 26, 11:21 AM PST · 16402 days ago · 39 km deep · 7 km away
13. 2.532 km WSW of Ferndale, CaliforniaMon, Oct 26, 12:47 PM PST · 16402 days ago · 26 km deep · 18 km away
14. 1.64 km WSW of Redcrest, CaliforniaMon, Oct 26, 1:45 PM PST · 16402 days ago · 35 km deep · 43 km away
15. 2.01 km NE of Bayview, CaliforniaMon, Oct 26, 3:32 PM PST · 16401 days ago · 11 km deep · 61 km away
16. 2.136 km SW of Ferndale, CaliforniaMon, Oct 26, 5:18 PM PST · 16401 days ago · 33 km deep · 7 km away
17. 1.945 km SW of Ferndale, CaliforniaTue, Oct 27, 3:18 PM PST · 16400 days ago · 20 km deep · 15 km away
18. 2.834 km SW of Ferndale, CaliforniaTue, Oct 27, 6:45 PM PST · 16400 days ago · 35 km deep · 6 km away
19. 1.739 km SW of Ferndale, CaliforniaWed, Oct 28, 5:39 AM PST · 16400 days ago · 23 km deep · 10 km away
20. 1.617 km WNW of Indianola, CaliforniaWed, Oct 28, 6:31 AM PST · 16400 days ago · 25 km deep · 50 km away
21. 1.643 km SW of Ferndale, CaliforniaWed, Oct 28, 10:16 AM PST · 16400 days ago · 18 km deep · 12 km away
22. 2.415 km W of Samoa, CaliforniaWed, Oct 28, 8:59 PM PST · 16399 days ago · 23 km deep · 59 km away
23. 2.911 km W of Ferndale, CaliforniaThu, Oct 29, 4:11 AM PST · 16399 days ago · 22 km deep · 32 km away
24. 2.635 km SW of Ferndale, CaliforniaThu, Oct 29, 4:14 AM PST · 16399 days ago · 25 km deep · 9 km away
25. 3.236 km SW of Ferndale, CaliforniaThu, Oct 29, 4:30 AM PST · 16399 days ago · 28 km deep · 7 km away
26. 1.638 km SW of Ferndale, CaliforniaThu, Oct 29, 8:26 AM PST · 16399 days ago · 25 km deep · 6 km away
27. 1.659 km SW of Ferndale, CaliforniaThu, Oct 29, 3:01 PM PST · 16398 days ago · 6 km deep · 31 km away
28. 2.059 km W of Ferndale, CaliforniaThu, Oct 29, 4:23 PM PST · 16398 days ago · 10 km deep · 48 km away
29. 2.63 km SE of Fortuna, CaliforniaFri, Oct 30, 2:27 AM PST · 16398 days ago · 20 km deep · 44 km away
30. 1.738 km SW of Ferndale, CaliforniaFri, Oct 30, 3:15 AM PST · 16398 days ago · 22 km deep · 6 km away
31. 2.647 km SW of Ferndale, CaliforniaFri, Oct 30, 10:01 AM PST · 16398 days ago · 21 km deep · 20 km away
32. 1.517 km W of Ferndale, CaliforniaFri, Oct 30, 1:30 PM PST · 16398 days ago · 22 km deep · 31 km away
33. 3.038 km SW of Ferndale, CaliforniaFri, Oct 30, 3:39 PM PST · 16397 days ago · 29 km deep · 9 km away
34. 3.036 km SW of Ferndale, CaliforniaFri, Oct 30, 9:05 PM PST · 16397 days ago · 28 km deep · 7 km away
35. 1.718 km WSW of Ferndale, CaliforniaSat, Oct 31, 2:52 AM PST · 16397 days ago · 22 km deep · 22 km away
36. 1.826 km SW of Ferndale, CaliforniaSat, Oct 31, 8:09 AM PST · 16397 days ago · 18 km deep · 13 km away
37. 2.616 km ESE of Pine Hills, CaliforniaSat, Oct 31, 9:58 AM PST · 16397 days ago · 24 km deep · 62 km away
38. 3.294 km W of Ferndale, CaliforniaSat, Oct 31, 7:20 PM PST · 16396 days ago · 18 km deep · 87 km away
39. 1.836 km WSW of Ferndale, CaliforniaSun, Nov 1, 12:23 AM PST · 16396 days ago · 25 km deep · 25 km away
40. 1.711 km E of Pine Hills, CaliforniaSun, Nov 1, 6:52 AM PST · 16396 days ago · 25 km deep · 62 km away
41. 2.311 km W of Indianola, CaliforniaSun, Nov 1, 7:01 AM PST · 16396 days ago · 26 km deep · 45 km away
42. 1.79 km WSW of Rio Dell, CaliforniaSun, Nov 1, 9:50 AM PST · 16396 days ago · 23 km deep · 31 km away
43. 2.641 km SW of Ferndale, CASun, Nov 1, 11:00 AM PST · 16396 days ago · 26 km deep · 11 km away
44. 1.835 km SW of Ferndale, CaliforniaSun, Nov 1, 7:51 PM PST · 16395 days ago · 36 km deep · 9 km away
45. 3.257 km WSW of Ferndale, CaliforniaMon, Nov 2, 1:33 PM PST · 16395 days ago · 20 km deep · 35 km away
46. 2.137 km SW of Ferndale, CaliforniaTue, Nov 3, 9:43 AM PST · 16394 days ago · 26 km deep · 9 km away
47. 1.628 km SW of Ferndale, CaliforniaTue, Nov 3, 9:19 PM PST · 16393 days ago · 20 km deep · 11 km away
48. 2.117 km W of Laytonville, CaliforniaWed, Nov 4, 2:13 AM PST · 16393 days ago · -1 km deep · 96 km away
49. 2.138 km SW of Ferndale, CaliforniaWed, Nov 4, 3:37 AM PST · 16393 days ago · 27 km deep · 9 km away
50. 2.038 km SW of Ferndale, CaliforniaWed, Nov 4, 3:37 AM PST · 16393 days ago · 29 km deep · 9 km away
51. 1.536 km SW of Ferndale, CaliforniaWed, Nov 4, 9:10 AM PST · 16393 days ago · 21 km deep · 3 km away
52. 1.836 km SW of Ferndale, CaliforniaThu, Nov 5, 8:20 AM PST · 16392 days ago · 27 km deep · 7 km away
53. 3.422 km WNW of Trinidad, CaliforniaThu, Nov 5, 12:21 PM PST · 16392 days ago · 25 km deep · 91 km away
54. 2.137 km SW of Ferndale, CaliforniaFri, Nov 6, 1:51 AM PST · 16391 days ago · 22 km deep · 5 km away
55. 1.817 km W of Laytonville, CaliforniaFri, Nov 6, 11:17 AM PST · 16391 days ago · -1 km deep · 95 km away
56. 2.623 km WSW of Trinidad, CaliforniaFri, Nov 6, 11:35 AM PST · 16391 days ago · 13 km deep · 81 km away
57. 1.829 km WSW of Ferndale, CaliforniaFri, Nov 6, 12:23 PM PST · 16391 days ago · 25 km deep · 19 km away
58. 1.731 km SW of Scotia, CaliforniaFri, Nov 6, 3:45 PM PST · 16390 days ago · 4 km deep · 15 km away
59. 2.231 km WSW of Ferndale, CaliforniaFri, Nov 6, 10:14 PM PST · 16390 days ago · 16 km deep · 21 km away
60. 1.616 km WSW of Scotia, CaliforniaSat, Nov 7, 7:24 PM PST · 16389 days ago · 30 km deep · 22 km away

The first 60 of 142.

Before

1. 1.837 km SW of Ferndale, CaliforniaThu, Oct 22, 2:23 PM PDT · 16406 days ago · 24 km deep · 3 km away
2. 1.640 km SSW of Ferndale, CaliforniaThu, Oct 22, 11:27 AM PDT · 16406 days ago · 25 km deep · 4 km away
3. 1.562 km SW of Ferndale, CaliforniaWed, Oct 21, 11:45 AM PDT · 16407 days ago · 5 km deep · 33 km away
4. 1.718 km W of Ferndale, CaliforniaWed, Oct 21, 8:51 AM PDT · 16407 days ago · 22 km deep · 29 km away
5. 1.850 km WSW of Ferndale, CaliforniaWed, Oct 21, 6:31 AM PDT · 16407 days ago · 30 km deep · 35 km away
6. 3.0101 km W of Ferndale, CaliforniaWed, Oct 21, 12:06 AM PDT · 16407 days ago · 8 km deep · 87 km away
7. 2.134 km SSW of Ferndale, CaliforniaTue, Oct 20, 11:52 PM PDT · 16407 days ago · 25 km deep · 3 km away
8. 1.539 km SSW of Ferndale, CaliforniaTue, Oct 20, 10:43 PM PDT · 16407 days ago · 25 km deep · 3 km away
9. 2.6110 km WSW of Ferndale, CaliforniaTue, Oct 20, 2:55 AM PDT · 16408 days ago · 4 km deep · 90 km away
10. 3.09 km N of Hyampom, CaliforniaMon, Oct 19, 4:34 PM PDT · 16408 days ago · 17 km deep · 99 km away
11. 1.638 km WSW of Ferndale, CaliforniaMon, Oct 19, 8:48 AM PDT · 16409 days ago · 31 km deep · 23 km away
12. 1.822 km WSW of Weott, CaliforniaMon, Oct 19, 5:27 AM PDT · 16409 days ago · 4 km deep · 28 km away
13. 1.96 km SE of Ferndale, CaliforniaSun, Oct 18, 10:03 PM PDT · 16409 days ago · 11 km deep · 37 km away
14. 2.036 km SSW of Ferndale, CaliforniaSun, Oct 18, 10:46 AM PDT · 16410 days ago · 21 km deep · 2 km away
15. 1.641 km SW of Ferndale, CaliforniaSun, Oct 18, 4:14 AM PDT · 16410 days ago · 20 km deep · 10 km away
16. 1.518 km SW of Scotia, CaliforniaSun, Oct 18, 12:58 AM PDT · 16410 days ago · 22 km deep · 21 km away
17. 1.814 km WNW of Samoa, CaliforniaSat, Oct 17, 8:26 PM PDT · 16410 days ago · 25 km deep · 64 km away
18. 1.628 km SW of Ferndale, CaliforniaSat, Oct 17, 11:52 AM PDT · 16411 days ago · 25 km deep · 14 km away
19. 2.550 km WNW of Ferndale, CaliforniaSat, Oct 17, 8:58 AM PDT · 16411 days ago · 3 km deep · 56 km away
20. 1.643 km SW of Ferndale, CaliforniaSat, Oct 17, 8:38 AM PDT · 16411 days ago · 32 km deep · 19 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1068848. Read Tue, Sep 22, 2026, 10:00 AM UTC.