M2.7 earthquake 90 km W of Ferndale, California

Magnitude

2.7 (md), micro

Local time

Fri, Apr 3, 1981, 2:38 AM PST

UTC

1981-04-03 10:38:46 UTC

Depth

4.5 km (2.8 mi), shallow

Epicenter

40.455° N, 125.320° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 3.7 km horizontally, 3.2 km in depth

Magnitude uncertainty

±0.26

Depth from

From location

Station coverage gap

303°, poorly surrounded by stations

Stations used

25

• Ferndale, CaliforniaPopulation 1,369. Forecast90 kmW
• Fortuna, CaliforniaPopulation 12,000. Forecast100 kmW
• Chico, CaliforniaPopulation 121,345. Forecast307 kmWNW

After

1. 1.818 km W of Ferndale, CaliforniaSat, Apr 4, 4:54 AM PST · 16614 days ago · 22 km deep · 72 km away
2. 1.529 km SW of Scotia, CaliforniaSun, Apr 5, 1:32 AM PST · 16613 days ago · 19 km deep · 87 km away
3. 2.035 km SW of Ferndale, CaliforniaSun, Apr 5, 4:17 PM PST · 16613 days ago · 35 km deep · 67 km away
4. 2.537 km SSW of Ferndale, CaliforniaMon, Apr 6, 2:57 PM PST · 16612 days ago · 14 km deep · 73 km away
5. 2.420 km SSW of Scotia, CaliforniaTue, Apr 7, 7:22 AM PST · 16611 days ago · 11 km deep · 93 km away
6. 1.8off the coast of Northern CaliforniaWed, Apr 8, 5:36 AM PST · 16610 days ago · 4 km deep · 25 km away
7. 2.338 km SW of Ferndale, CaliforniaWed, Apr 8, 4:37 PM PST · 16610 days ago · 25 km deep · 64 km away
8. 1.928 km SSW of Ferndale, CaliforniaThu, Apr 9, 12:01 AM PST · 16609 days ago · 18 km deep · 75 km away
9. 3.038 km W of Trinidad, CaliforniaThu, Apr 9, 2:38 AM PST · 16609 days ago · 22 km deep · 93 km away
10. 1.936 km SW of Ferndale, CaliforniaThu, Apr 9, 10:01 AM PST · 16609 days ago · 17 km deep · 64 km away
11. 1.826 km SSW of Ferndale, CaliforniaThu, Apr 9, 7:30 PM PST · 16609 days ago · 33 km deep · 76 km away
12. 2.434 km SW of Ferndale, CaliforniaThu, Apr 9, 10:22 PM PST · 16608 days ago · 37 km deep · 68 km away
13. 2.142 km W of Big Lagoon, CaliforniaFri, Apr 10, 8:18 AM PST · 16608 days ago · 5 km deep · 100 km away
14. 2.0108 km W of Ferndale, CaliforniaFri, Apr 10, 5:42 PM PST · 16608 days ago · 5 km deep · 34 km away
15. 2.424 km SW of Scotia, CaliforniaFri, Apr 10, 8:58 PM PST · 16608 days ago · 30 km deep · 86 km away
16. 1.810 km W of Indianola, CaliforniaFri, Apr 10, 11:59 PM PST · 16607 days ago · 8 km deep · 85 km away
17. 2.446 km SW of Ferndale, CaliforniaSat, Apr 11, 12:56 AM PST · 16607 days ago · 16 km deep · 54 km away
18. 1.951 km SW of Ferndale, CaliforniaSat, Apr 11, 10:24 PM PST · 16606 days ago · 15 km deep · 53 km away
19. 1.626 km NW of Shelter Cove, CaliforniaSun, Apr 12, 12:36 AM PST · 16606 days ago · 4 km deep · 93 km away
20. 1.738 km SW of Ferndale, CaliforniaSun, Apr 12, 2:43 AM PST · 16606 days ago · 16 km deep · 67 km away
21. 1.827 km W of Trinidad, CaliforniaSun, Apr 12, 4:11 PM PST · 16606 days ago · 25 km deep · 96 km away
22. 1.738 km SW of Ferndale, CaliforniaMon, Apr 13, 6:45 AM PST · 16605 days ago · 24 km deep · 65 km away
23. 2.140 km SW of Ferndale, CaliforniaMon, Apr 13, 9:44 AM PST · 16605 days ago · 24 km deep · 64 km away
24. 4.336 km SW of Ferndale, CaliforniaMon, Apr 13, 2:16 PM PST · 16605 days ago · 23 km deep · 67 km away
25. 1.7near the coast of Northern CaliforniaMon, Apr 13, 3:51 PM PST · 16605 days ago · 24 km deep · 67 km away
26. 3.137 km SW of Ferndale, CaliforniaMon, Apr 13, 8:41 PM PST · 16605 days ago · 27 km deep · 67 km away
27. 2.365 km W of Indianola, CaliforniaTue, Apr 14, 12:55 AM PST · 16604 days ago · 20 km deep · 45 km away
28. 2.236 km SW of Ferndale, CaliforniaTue, Apr 14, 1:00 AM PST · 16604 days ago · 27 km deep · 68 km away
29. 1.527 km SSW of Ferndale, CaliforniaTue, Apr 14, 2:01 PM PST · 16604 days ago · 16 km deep · 75 km away
30. 2.038 km SW of Ferndale, CaliforniaTue, Apr 14, 4:26 PM PST · 16604 days ago · 21 km deep · 65 km away
31. 1.837 km SW of Ferndale, CaliforniaTue, Apr 14, 5:34 PM PST · 16604 days ago · 21 km deep · 64 km away
32. 2.341 km SW of Ferndale, CaliforniaWed, Apr 15, 7:31 AM PST · 16603 days ago · 24 km deep · 60 km away
33. 1.937 km SW of Ferndale, CaliforniaWed, Apr 15, 10:04 AM PST · 16603 days ago · 25 km deep · 67 km away
34. 2.942 km W of Trinidad, CaliforniaThu, Apr 16, 11:04 AM PST · 16602 days ago · 16 km deep · 85 km away
35. 4.2126 km W of Ferndale, CaliforniaThu, Apr 16, 5:31 PM PST · 16602 days ago · 5 km deep · 36 km away
36. 2.836 km SW of Ferndale, CaliforniaThu, Apr 16, 5:40 PM PST · 16602 days ago · 26 km deep · 68 km away
37. 1.534 km SW of Scotia, CaliforniaFri, Apr 17, 1:32 PM PST · 16601 days ago · 12 km deep · 82 km away
38. 2.938 km SW of Ferndale, CaliforniaFri, Apr 17, 5:26 PM PST · 16601 days ago · 20 km deep · 63 km away
39. 2.639 km SW of Ferndale, CaliforniaFri, Apr 17, 8:24 PM PST · 16601 days ago · 23 km deep · 64 km away
40. 3.849 km WSW of Ferndale, CaliforniaSat, Apr 18, 5:17 AM PST · 16600 days ago · 18 km deep · 46 km away
41. 1.647 km SW of Ferndale, CaliforniaSat, Apr 18, 7:52 AM PST · 16600 days ago · 13 km deep · 57 km away
42. 1.939 km SW of Ferndale, CaliforniaSat, Apr 18, 10:37 AM PST · 16600 days ago · 20 km deep · 64 km away
43. 2.13 km SW of Loleta, CaliforniaSun, Apr 19, 3:56 AM PST · 16599 days ago · 21 km deep · 92 km away
44. 1.540 km SW of Ferndale, CaliforniaSun, Apr 19, 8:50 AM PST · 16599 days ago · 23 km deep · 65 km away
45. 2.1near the coast of Northern CaliforniaSun, Apr 19, 5:16 PM PST · 16599 days ago · 21 km deep · 54 km away
46. 1.634 km SW of Ferndale, CaliforniaSun, Apr 19, 8:53 PM PST · 16599 days ago · 21 km deep · 69 km away
47. 3.2near the coast of Northern CaliforniaSun, Apr 19, 11:23 PM PST · 16598 days ago · 25 km deep · 60 km away
48. 1.624 km WNW of Samoa, CaliforniaMon, Apr 20, 2:59 AM PST · 16598 days ago · 14 km deep · 92 km away
49. 2.437 km SW of Ferndale, CaliforniaMon, Apr 20, 8:52 AM PST · 16598 days ago · 29 km deep · 65 km away
50. 1.921 km WNW of Manila, CaliforniaMon, Apr 20, 1:15 PM PST · 16598 days ago · 17 km deep · 95 km away
51. 3.540 km SW of Ferndale, CaliforniaMon, Apr 20, 3:44 PM PST · 16598 days ago · 27 km deep · 61 km away
52. 2.340 km SW of Ferndale, CaliforniaMon, Apr 20, 5:00 PM PST · 16598 days ago · 27 km deep · 61 km away
53. 1.830 km SW of Scotia, CaliforniaMon, Apr 20, 6:26 PM PST · 16598 days ago · 13 km deep · 84 km away
54. 2.220 km SSW of Scotia, CaliforniaTue, Apr 21, 2:54 AM PST · 16597 days ago · 4 km deep · 97 km away
55. 2.24 km SW of Loleta, CaliforniaTue, Apr 21, 10:38 AM PST · 16597 days ago · 19 km deep · 91 km away
56. 1.844 km SW of Ferndale, CaliforniaWed, Apr 22, 1:08 AM PST · 16596 days ago · 28 km deep · 61 km away
57. 2.344 km SW of Ferndale, CaliforniaWed, Apr 22, 1:21 AM PST · 16596 days ago · 18 km deep · 57 km away
58. 3.487 km WSW of Ferndale, CaliforniaWed, Apr 22, 3:43 AM PST · 16596 days ago · 5 km deep · 5 km away
59. 3.138 km SW of Ferndale, CaliforniaWed, Apr 22, 8:37 AM PST · 16596 days ago · 27 km deep · 63 km away
60. 1.642 km SW of Ferndale, CaliforniaWed, Apr 22, 11:40 AM PST · 16596 days ago · 27 km deep · 59 km away

The first 60 of 124.

Before

1. 3.267 km W of Trinidad, CaliforniaThu, Apr 2, 4:59 PM PST · 16616 days ago · 5 km deep · 83 km away
2. 3.237 km SW of Ferndale, CaliforniaThu, Apr 2, 4:19 PM PST · 16616 days ago · 22 km deep · 68 km away
3. 2.418 km WNW of Manila, CaliforniaThu, Apr 2, 9:18 AM PST · 16616 days ago · 17 km deep · 97 km away
4. 1.648 km WNW of Indianola, CaliforniaThu, Apr 2, 4:09 AM PST · 16616 days ago · 3 km deep · 58 km away
5. 1.520 km SW of Ferndale, CaliforniaWed, Apr 1, 10:00 PM PST · 16617 days ago · 17 km deep · 77 km away
6. 1.821 km SSW of Ferndale, CaliforniaWed, Apr 1, 9:32 PM PST · 16617 days ago · 21 km deep · 80 km away
7. 1.819 km SW of Ferndale, CaliforniaWed, Apr 1, 7:29 PM PST · 16617 days ago · 18 km deep · 75 km away
8. 2.044 km SW of Ferndale, CaliforniaWed, Apr 1, 10:21 AM PST · 16617 days ago · 18 km deep · 57 km away
9. 2.139 km SW of Ferndale, CaliforniaWed, Apr 1, 9:42 AM PST · 16617 days ago · 23 km deep · 63 km away
10. 3.041 km SW of Ferndale, CaliforniaTue, Mar 31, 5:06 AM PST · 16618 days ago · 23 km deep · 60 km away
11. 2.937 km SW of Ferndale, CaliforniaMon, Mar 30, 10:47 PM PST · 16618 days ago · 27 km deep · 64 km away
12. 2.439 km SW of Ferndale, CaliforniaMon, Mar 30, 9:48 PM PST · 16619 days ago · 27 km deep · 64 km away
13. 2.840 km SW of Ferndale, CaliforniaMon, Mar 30, 8:14 PM PST · 16619 days ago · 23 km deep · 61 km away
14. 4.038 km SW of Ferndale, CaliforniaMon, Mar 30, 6:10 PM PST · 16619 days ago · 22 km deep · 63 km away
15. 1.537 km SW of Ferndale, CaliforniaMon, Mar 30, 1:36 PM PST · 16619 days ago · 23 km deep · 65 km away
16. 2.438 km SW of Ferndale, CaliforniaMon, Mar 30, 11:08 AM PST · 16619 days ago · 20 km deep · 62 km away
17. 2.343 km SW of Ferndale, CaliforniaMon, Mar 30, 9:44 AM PST · 16619 days ago · 19 km deep · 57 km away
18. 3.131 km SW of Ferndale, CaliforniaMon, Mar 30, 7:00 AM PST · 16619 days ago · 27 km deep · 71 km away
19. 2.428 km SW of Ferndale, CaliforniaMon, Mar 30, 5:03 AM PST · 16619 days ago · 29 km deep · 70 km away
20. 2.937 km SW of Ferndale, CaliforniaMon, Mar 30, 4:56 AM PST · 16619 days ago · 24 km deep · 65 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1062048. Read Tue, Sep 29, 2026, 5:51 PM UTC.