M2.8 earthquake 98 km WSW of Ferndale, California

Magnitude

2.8 (md), micro

Local time

Fri, Jul 24, 1981, 11:48 AM PDT

UTC

1981-07-24 18:48:59 UTC

Depth

15.3 km (9.5 mi), shallow

Epicenter

40.393° N, 125.400° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 4.5 km horizontally, 9.2 km in depth

Magnitude uncertainty

±0.08

Depth from

From location

Station coverage gap

298°, poorly surrounded by stations

Stations used

14

• Ferndale, CaliforniaPopulation 1,369. Forecast98 kmWSW
• Fortuna, CaliforniaPopulation 12,000. Forecast108 kmWSW
• Chico, CaliforniaPopulation 121,345. Forecast312 kmWNW

After

1. 2.246 km W of Ferndale, CaliforniaFri, Jul 24, 3:15 PM PDT · 16496 days ago · 16 km deep · 53 km away
2. 2.027 km SW of Ferndale, CaliforniaSat, Jul 25, 12:37 PM PDT · 16495 days ago · 17 km deep · 79 km away
3. 1.920 km SSW of Ferndale, CaliforniaMon, Jul 27, 2:54 AM PDT · 16493 days ago · 18 km deep · 88 km away
4. 2.538 km SW of Ferndale, CaliforniaMon, Jul 27, 7:51 PM PDT · 16493 days ago · 23 km deep · 70 km away
5. 2.449 km SW of Ferndale, CaliforniaFri, Jul 31, 1:41 PM PDT · 16489 days ago · 29 km deep · 58 km away
6. 2.638 km SW of Ferndale, CaliforniaSat, Aug 1, 6:10 AM PDT · 16488 days ago · 24 km deep · 69 km away
7. 2.128 km SW of Ferndale, CaliforniaMon, Aug 3, 3:47 AM PDT · 16486 days ago · 32 km deep · 73 km away
8. 1.636 km WSW of Ferndale, CaliforniaMon, Aug 3, 9:16 AM PDT · 16486 days ago · 25 km deep · 63 km away
9. 1.919 km SSW of Ferndale, CaliforniaWed, Aug 5, 12:15 AM PDT · 16484 days ago · 28 km deep · 92 km away
10. 2.059 km WNW of Indianola, CaliforniaWed, Aug 5, 12:44 AM PDT · 16484 days ago · 7 km deep · 64 km away
11. 3.2off the coast of Northern CaliforniaWed, Aug 5, 11:17 AM PDT · 16484 days ago · 4 km deep · 19 km away
12. 3.083 km WSW of Ferndale, CaliforniaWed, Aug 5, 11:17 AM PDT · 16484 days ago · 5 km deep · 15 km away
13. 2.037 km SW of Ferndale, CaliforniaThu, Aug 6, 9:20 AM PDT · 16483 days ago · 32 km deep · 71 km away
14. 3.273 km WSW of Ferndale, CaliforniaFri, Aug 7, 10:51 AM PDT · 16482 days ago · 12 km deep · 25 km away
15. 2.238 km SW of Ferndale, CaliforniaSat, Aug 8, 12:33 AM PDT · 16481 days ago · 20 km deep · 66 km away
16. 1.710 km SSW of Ferndale, CaliforniaSat, Aug 8, 9:15 AM PDT · 16481 days ago · 20 km deep · 92 km away
17. 2.838 km SW of Ferndale, CaliforniaSat, Aug 8, 10:07 AM PDT · 16481 days ago · 26 km deep · 69 km away
18. 2.253 km SW of Ferndale, CaliforniaSun, Aug 9, 7:58 PM PDT · 16480 days ago · 15 km deep · 53 km away
19. 2.512 km SSW of Ferndale, CaliforniaSun, Aug 9, 9:23 PM PDT · 16479 days ago · 18 km deep · 93 km away
20. 2.494 km W of Ferndale, CaliforniaWed, Aug 12, 6:51 PM PDT · 16477 days ago · 8 km deep · 7 km away
21. 2.139 km SW of Ferndale, CaliforniaThu, Aug 13, 3:12 AM PDT · 16476 days ago · 23 km deep · 72 km away
22. 2.498 km W of Ferndale, CaliforniaThu, Aug 13, 8:22 PM PDT · 16476 days ago · 4 km deep · 31 km away
23. 3.091 km W of Ferndale, CaliforniaFri, Aug 14, 12:09 AM PDT · 16475 days ago · 40 km deep · 8 km away
24. 1.534 km SSW of Ferndale, CaliforniaFri, Aug 14, 2:50 AM PDT · 16475 days ago · 20 km deep · 81 km away
25. 1.842 km SW of Ferndale, CaliforniaFri, Aug 14, 5:39 AM PDT · 16475 days ago · 20 km deep · 67 km away
26. 2.8122 km W of Ferndale, CaliforniaFri, Aug 14, 8:17 AM PDT · 16475 days ago · 2 km deep · 31 km away
27. 2.615 km WSW of Scotia, CaliforniaFri, Aug 14, 9:35 AM PDT · 16475 days ago · 30 km deep · 97 km away
28. 1.616 km WNW of Fields Landing, CaliforniaFri, Aug 14, 3:41 PM PDT · 16475 days ago · 22 km deep · 94 km away
29. 2.353 km W of Ferndale, CaliforniaSat, Aug 15, 4:41 PM PDT · 16474 days ago · 5 km deep · 49 km away
30. 2.017 km SSW of Ferndale, CaliforniaSat, Aug 15, 9:39 PM PDT · 16473 days ago · 23 km deep · 90 km away
31. 2.5105 km W of Ferndale, CaliforniaSun, Aug 16, 8:47 PM PDT · 16473 days ago · 4 km deep · 7 km away
32. 2.639 km SW of Ferndale, CaliforniaMon, Aug 17, 7:57 AM PDT · 16472 days ago · 21 km deep · 70 km away
33. 2.276 km WSW of Ferndale, CaliforniaMon, Aug 17, 5:24 PM PDT · 16472 days ago · 5 km deep · 26 km away
34. 3.037 km SW of Ferndale, CaliforniaTue, Aug 18, 6:27 PM PDT · 16471 days ago · 28 km deep · 71 km away
35. 2.037 km SW of Ferndale, CaliforniaTue, Aug 18, 11:49 PM PDT · 16470 days ago · 20 km deep · 75 km away
36. 2.837 km SW of Ferndale, CaliforniaWed, Aug 19, 6:12 AM PDT · 16470 days ago · 17 km deep · 72 km away
37. 1.7near the coast of Northern CaliforniaWed, Aug 19, 4:12 PM PDT · 16470 days ago · 10 km deep · 91 km away
38. 2.124 km SW of Scotia, CaliforniaWed, Aug 19, 4:13 PM PDT · 16470 days ago · 11 km deep · 95 km away
39. 2.238 km SW of Ferndale, CaliforniaThu, Aug 20, 9:28 PM PDT · 16468 days ago · 25 km deep · 68 km away
40. 2.398 km WSW of Ferndale, CaliforniaSat, Aug 22, 5:12 AM PDT · 16467 days ago · 7 km deep · 4 km away
41. 3.233 km SW of Scotia, CaliforniaSat, Aug 22, 12:31 PM PDT · 16467 days ago · 27 km deep · 86 km away
42. 2.425 km SW of Ferndale, CaliforniaSun, Aug 23, 2:58 AM PDT · 16466 days ago · 28 km deep · 78 km away
43. 2.139 km SW of Ferndale, CASun, Aug 23, 10:50 PM PDT · 16465 days ago · 30 km deep · 71 km away
44. 1.633 km SSW of Ferndale, CaliforniaMon, Aug 24, 12:01 PM PDT · 16465 days ago · 34 km deep · 79 km away
45. 1.811 km SSW of Ferndale, CaliforniaMon, Aug 24, 10:52 PM PDT · 16464 days ago · 20 km deep · 94 km away
46. 1.630 km WSW of Ferndale, CaliforniaTue, Aug 25, 3:04 AM PDT · 16464 days ago · 27 km deep · 71 km away
47. 2.035 km SW of Ferndale, CaliforniaTue, Aug 25, 5:18 PM PDT · 16464 days ago · 17 km deep · 68 km away
48. 2.044 km SW of Ferndale, CaliforniaTue, Aug 25, 5:43 PM PDT · 16464 days ago · 17 km deep · 62 km away
49. 1.811 km S of Ferndale, CaliforniaTue, Aug 25, 8:44 PM PDT · 16464 days ago · 20 km deep · 96 km away
50. 3.261 km WNW of Indianola, CaliforniaThu, Aug 27, 4:37 AM PDT · 16462 days ago · 9 km deep · 62 km away
51. 2.013 km SSW of Ferndale, CaliforniaThu, Aug 27, 9:54 AM PDT · 16462 days ago · 19 km deep · 92 km away
52. 2.130 km SW of Ferndale, CaliforniaFri, Aug 28, 9:32 PM PDT · 16460 days ago · 29 km deep · 71 km away
53. 1.843 km SW of Ferndale, CaliforniaSat, Aug 29, 12:37 AM PDT · 16460 days ago · 23 km deep · 64 km away
54. 1.738 km SW of Ferndale, CaliforniaSat, Aug 29, 7:18 PM PDT · 16460 days ago · 35 km deep · 68 km away
55. 1.648 km WNW of Indianola, CaliforniaTue, Sep 1, 5:18 PM PDT · 16457 days ago · 2 km deep · 67 km away
56. 2.234 km SW of Ferndale, CaliforniaWed, Sep 2, 6:56 AM PDT · 16456 days ago · 33 km deep · 75 km away
57. 2.743 km SW of Ferndale, CaliforniaThu, Sep 3, 5:15 AM PDT · 16455 days ago · 30 km deep · 65 km away
58. 1.836 km SW of Ferndale, CaliforniaFri, Sep 4, 1:54 AM PDT · 16454 days ago · 21 km deep · 71 km away
59. 2.637 km SSW of Ferndale, CaliforniaFri, Sep 4, 6:54 PM PDT · 16454 days ago · 28 km deep · 81 km away
60. 1.637 km SW of Ferndale, CaliforniaSat, Sep 5, 2:08 AM PDT · 16453 days ago · 22 km deep · 73 km away

The first 60 of 105.

Before

1. 1.737 km SW of Ferndale, CaliforniaFri, Jul 24, 1:40 AM PDT · 16496 days ago · 30 km deep · 73 km away
2. 1.730 km SW of Ferndale, CaliforniaThu, Jul 23, 9:57 AM PDT · 16497 days ago · 26 km deep · 71 km away
3. 2.227 km WSW of Ferndale, CaliforniaThu, Jul 23, 8:36 AM PDT · 16497 days ago · 24 km deep · 73 km away
4. 1.938 km SW of Ferndale, CaliforniaThu, Jul 23, 2:40 AM PDT · 16497 days ago · 33 km deep · 70 km away
5. 2.371 km W of Ferndale, CaliforniaTue, Jul 21, 8:26 AM PDT · 16499 days ago · 5 km deep · 31 km away
6. 2.539 km SW of Ferndale, CaliforniaTue, Jul 21, 1:54 AM PDT · 16499 days ago · 24 km deep · 70 km away
7. 1.889 km W of Trinidad, CaliforniaTue, Jul 21, 12:39 AM PDT · 16499 days ago · 5 km deep · 78 km away
8. 1.933 km SSW of Ferndale, CaliforniaMon, Jul 20, 7:55 AM PDT · 16500 days ago · 23 km deep · 82 km away
9. 2.532 km SW of Scotia, CaliforniaSun, Jul 19, 7:13 AM PDT · 16501 days ago · 25 km deep · 86 km away
10. 2.280 km W of Ferndale, CaliforniaFri, Jul 17, 7:36 PM PDT · 16503 days ago · 3 km deep · 24 km away
11. 1.738 km WSW of Ferndale, CaliforniaThu, Jul 16, 11:08 AM PDT · 16504 days ago · 27 km deep · 63 km away
12. 1.749 km SW of Ferndale, CaliforniaThu, Jul 16, 3:58 AM PDT · 16504 days ago · 17 km deep · 57 km away
13. 2.144 km SW of Ferndale, CaliforniaThu, Jul 16, 12:39 AM PDT · 16504 days ago · 22 km deep · 63 km away
14. 2.345 km SW of Ferndale, CaliforniaWed, Jul 15, 10:22 PM PDT · 16504 days ago · 22 km deep · 61 km away
15. 2.438 km SW of Ferndale, CaliforniaTue, Jul 14, 7:11 PM PDT · 16506 days ago · 28 km deep · 69 km away
16. 3.283 km WSW of Ferndale, CaliforniaTue, Jul 14, 9:42 AM PDT · 16506 days ago · 64 km deep · 15 km away
17. 2.242 km SW of Ferndale, CaliforniaSun, Jul 12, 4:55 PM PDT · 16508 days ago · 24 km deep · 65 km away
18. 2.7147 km W of Ferndale, CaliforniaSat, Jul 11, 7:54 PM PDT · 16509 days ago · 13 km deep · 52 km away
19. 2.277 km W of Ferndale, CaliforniaSat, Jul 11, 1:20 PM PDT · 16509 days ago · 11 km deep · 38 km away
20. 3.883 km W of Ferndale, CaliforniaSat, Jul 11, 12:24 PM PDT · 16509 days ago · 5 km deep · 34 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1065889. Read Tue, Sep 22, 2026, 3:36 PM UTC.