M1.8 earthquake 85 km W of Big Lagoon, California

Magnitude

1.8 (md), micro

Local time

Sat, Apr 25, 1981, 12:53 PM PST

UTC

1981-04-25 20:53:32 UTC

Depth

4.7 km (2.9 mi), shallow

Epicenter

41.189° N, 125.146° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 8.0 km horizontally, 10.7 km in depth

Depth from

From location

Station coverage gap

316°, poorly surrounded by stations

Stations used

9

• Westhaven-Moonstone, CaliforniaPopulation 1,205. Forecast89 kmW
• McKinleyville, CaliforniaPopulation 15,177. Forecast92 kmWNW
• Chico, CaliforniaPopulation 121,345. Forecast324 kmWNW

After

1. 1.939 km WSW of Ferndale, CaliforniaSat, Apr 25, 4:57 PM PST · 16586 days ago · 15 km deep · 86 km away
2. 2.226 km WSW of Ferndale, CaliforniaSun, Apr 26, 7:52 PM PDT · 16585 days ago · 26 km deep · 96 km away
3. 2.1125 km W of Ferndale, CaliforniaWed, Apr 29, 10:43 PM PDT · 16582 days ago · 5 km deep · 100 km away
4. 1.811 km SW of Ferndale, CaliforniaFri, May 1, 11:07 AM PDT · 16580 days ago · 25 km deep · 99 km away
5. 2.226 km WNW of Manila, CaliforniaSat, May 2, 5:04 AM PDT · 16579 days ago · 2 km deep · 64 km away
6. 1.914 km WSW of Ferndale, CaliforniaSat, May 2, 10:50 AM PDT · 16579 days ago · 19 km deep · 98 km away
7. 2.230 km WSW of Ferndale, CaliforniaSun, May 3, 10:59 AM PDT · 16578 days ago · 23 km deep · 94 km away
8. 2.597 km WSW of Ferndale, CaliforniaMon, May 4, 4:40 PM PDT · 16577 days ago · 5 km deep · 90 km away
9. 3.295 km W of Ferndale, CaliforniaMon, May 4, 6:06 PM PDT · 16577 days ago · 8 km deep · 87 km away
10. 2.122 km W of Ferndale, CaliforniaThu, May 7, 12:05 PM PDT · 16574 days ago · 21 km deep · 89 km away
11. 3.8131 km W of Ferndale, CaliforniaSat, May 9, 11:11 AM PDT · 16572 days ago · 5 km deep · 92 km away
12. 1.737 km WSW of Ferndale, CaliforniaSat, May 9, 11:22 AM PDT · 16572 days ago · 29 km deep · 97 km away
13. 2.773 km WSW of Ferndale, CaliforniaWed, May 13, 2:35 AM PDT · 16569 days ago · 64 km deep · 89 km away
14. 2.122 km W of Indianola, CaliforniaWed, May 13, 3:15 AM PDT · 16568 days ago · 20 km deep · 76 km away
15. 2.378 km WNW of Ferndale, CaliforniaThu, May 14, 3:48 PM PDT · 16567 days ago · 8 km deep · 52 km away
16. 1.71 km NE of Humboldt Hill, CaliforniaFri, May 15, 7:11 AM PDT · 16566 days ago · 1 km deep · 96 km away
17. 2.214 km WSW of Trinidad, CaliforniaFri, May 15, 4:46 PM PDT · 16566 days ago · 5 km deep · 74 km away
18. 1.811 km W of Indianola, CaliforniaFri, May 15, 7:17 PM PDT · 16566 days ago · 12 km deep · 85 km away
19. 2.911 km W of Indianola, CaliforniaFri, May 15, 8:58 PM PDT · 16566 days ago · 11 km deep · 85 km away
20. 1.88 km WNW of Indianola, CaliforniaSun, May 17, 11:08 AM PDT · 16564 days ago · 4 km deep · 87 km away
21. 2.47 km NNW of Manila, CaliforniaMon, May 18, 11:27 AM PDT · 16563 days ago · 6 km deep · 86 km away
22. 4.227 km W of Trinidad, CaliforniaThu, May 21, 6:19 PM PDT · 16560 days ago · 23 km deep · 58 km away
23. 3.150 km WSW of Ferndale, CaliforniaMon, May 25, 6:38 AM PDT · 16556 days ago · 34 km deep · 98 km away
24. 4.658 km WSW of Ferndale, CaliforniaTue, May 26, 4:41 AM PDT · 16555 days ago · 2 km deep · 93 km away
25. 2.873 km WNW of Ferndale, CaliforniaWed, May 27, 2:49 AM PDT · 16555 days ago · 14 km deep · 50 km away
26. 1.616 km WNW of Samoa, CaliforniaMon, Jun 1, 12:35 PM PDT · 16549 days ago · 22 km deep · 74 km away
27. 2.610 km WNW of Fields Landing, CaliforniaWed, Jun 3, 12:25 PM PDT · 16547 days ago · 25 km deep · 83 km away
28. 2.137 km WNW of Ferndale, CaliforniaWed, Jun 3, 4:37 PM PDT · 16547 days ago · 20 km deep · 69 km away
29. 2.240 km WNW of Ferndale, CaliforniaWed, Jun 3, 4:47 PM PDT · 16547 days ago · 19 km deep · 68 km away
30. 2.338 km WNW of Indianola, CaliforniaThu, Jun 4, 3:48 AM PDT · 16546 days ago · 9 km deep · 60 km away
31. 1.57 km WNW of McKinleyville, CaliforniaThu, Jun 4, 2:01 PM PDT · 16546 days ago · 20 km deep · 85 km away
32. 2.421 km WNW of Ferndale, CaliforniaSat, Jun 6, 12:25 AM PDT · 16545 days ago · 24 km deep · 80 km away
33. 2.384 km WNW of Samoa, CaliforniaSat, Jun 6, 2:46 PM PDT · 16544 days ago · 4 km deep · 18 km away
34. 2.414 km WNW of Fields Landing, CaliforniaMon, Jun 8, 3:06 AM PDT · 16543 days ago · 24 km deep · 81 km away
35. 2.554 km WNW of Samoa, CaliforniaTue, Jun 9, 1:50 PM PDT · 16541 days ago · 14 km deep · 38 km away
36. 3.398 km WSW of Ferndale, CaliforniaTue, Jun 9, 2:34 PM PDT · 16541 days ago · 65 km deep · 98 km away
37. 2.197 km WSW of Ferndale, CaliforniaWed, Jun 10, 1:57 AM PDT · 16541 days ago · 7 km deep · 90 km away
38. 1.812 km WSW of Ferndale, CaliforniaWed, Jun 10, 6:27 AM PDT · 16540 days ago · 16 km deep · 97 km away
39. 3.3106 km W of Trinidad, CaliforniaWed, Jun 10, 2:48 PM PDT · 16540 days ago · 11 km deep · 26 km away
40. 2.3111 km W of Ferndale, CaliforniaThu, Jun 11, 12:54 AM PDT · 16540 days ago · 4 km deep · 94 km away
41. 1.6near the coast of Northern CaliforniaThu, Jun 11, 8:53 PM PDT · 16539 days ago · 23 km deep · 94 km away
42. 2.513 km NW of Manila, CaliforniaFri, Jun 12, 1:29 AM PDT · 16539 days ago · 10 km deep · 77 km away
43. 1.522 km WSW of Ferndale, CaliforniaFri, Jun 12, 1:49 AM PDT · 16539 days ago · 27 km deep · 93 km away
44. 2.6near the coast of Northern CaliforniaFri, Jun 12, 6:07 AM PDT · 16538 days ago · 11 km deep · 78 km away
45. 1.925 km W of Trinidad, CaliforniaFri, Jun 12, 6:45 AM PDT · 16538 days ago · 18 km deep · 61 km away
46. 2.413 km NW of Manila, CaliforniaFri, Jun 12, 7:47 AM PDT · 16538 days ago · 11 km deep · 78 km away
47. 2.014 km NW of Manila, CaliforniaFri, Jun 12, 7:50 AM PDT · 16538 days ago · 10 km deep · 77 km away
48. 2.613 km NW of Manila, CaliforniaFri, Jun 12, 8:53 AM PDT · 16538 days ago · 12 km deep · 77 km away
49. 3.112 km NW of Manila, CaliforniaFri, Jun 12, 12:45 PM PDT · 16538 days ago · 11 km deep · 78 km away
50. 1.616 km NW of Manila, CaliforniaFri, Jun 12, 2:12 PM PDT · 16538 days ago · 9 km deep · 75 km away
51. 2.414 km NW of Manila, CaliforniaFri, Jun 12, 2:12 PM PDT · 16538 days ago · 9 km deep · 76 km away
52. 1.915 km NW of Manila, CaliforniaFri, Jun 12, 10:11 PM PDT · 16538 days ago · 11 km deep · 76 km away
53. 1.65 km NW of Manila, CaliforniaSat, Jun 13, 12:12 AM PDT · 16538 days ago · 1 km deep · 85 km away
54. 1.5near the coast of Northern CaliforniaSun, Jun 14, 11:19 AM PDT · 16536 days ago · 21 km deep · 77 km away
55. 3.431 km WSW of Ferndale, CaliforniaMon, Jun 15, 7:53 AM PDT · 16535 days ago · 27 km deep · 95 km away
56. 1.95 km WNW of Fields Landing, CaliforniaMon, Jun 15, 2:39 PM PDT · 16535 days ago · 10 km deep · 88 km away
57. 2.726 km WNW of Samoa, CaliforniaThu, Jun 18, 9:12 PM PDT · 16532 days ago · 4 km deep · 64 km away
58. 3.586 km WSW of Ferndale, CaliforniaFri, Jun 19, 1:39 AM PDT · 16532 days ago · 68 km deep · 90 km away
59. 2.067 km WSW of Ferndale, CaliforniaFri, Jun 19, 8:31 AM PDT · 16531 days ago · 5 km deep · 82 km away
60. 2.052 km W of Ferndale, CaliforniaFri, Jun 19, 9:03 AM PDT · 16531 days ago · 12 km deep · 69 km away

The first 60 of 70.

Before

1. 1.9115 km W of Ferndale, CaliforniaFri, Apr 24, 4:58 PM PST · 16587 days ago · 4 km deep · 96 km away
2. 2.022 km WSW of Ferndale, CaliforniaFri, Apr 24, 11:10 AM PST · 16587 days ago · 24 km deep · 98 km away
3. 2.794 km W of Ferndale, CaliforniaWed, Apr 22, 11:22 PM PST · 16589 days ago · 4 km deep · 74 km away
4. 3.487 km WSW of Ferndale, CaliforniaWed, Apr 22, 3:43 AM PST · 16589 days ago · 5 km deep · 86 km away
5. 2.24 km SW of Loleta, CaliforniaTue, Apr 21, 10:38 AM PST · 16590 days ago · 19 km deep · 98 km away
6. 1.921 km WNW of Manila, CaliforniaMon, Apr 20, 1:15 PM PST · 16591 days ago · 17 km deep · 69 km away
7. 1.624 km WNW of Samoa, CaliforniaMon, Apr 20, 2:59 AM PST · 16591 days ago · 14 km deep · 66 km away
8. 2.99 km WNW of McKinleyville, CaliforniaSun, Apr 19, 10:22 PM PST · 16592 days ago · 46 km deep · 82 km away
9. 2.0near the coast of Northern CaliforniaSun, Apr 19, 8:42 PM PST · 16592 days ago · 4 km deep · 67 km away
10. 2.1near the coast of Northern CaliforniaSun, Apr 19, 5:16 PM PST · 16592 days ago · 21 km deep · 80 km away
11. 2.13 km SW of Loleta, CaliforniaSun, Apr 19, 3:56 AM PST · 16592 days ago · 21 km deep · 98 km away
12. 1.725 km W of Big Lagoon, CaliforniaSat, Apr 18, 9:16 PM PST · 16593 days ago · 3 km deep · 60 km away
13. 2.020 km W of Big Lagoon, CaliforniaSat, Apr 18, 7:43 PM PST · 16593 days ago · 8 km deep · 65 km away
14. 2.24 km SSW of Westhaven-Moonstone, CaliforniaSat, Apr 18, 12:18 PM PST · 16593 days ago · 15 km deep · 87 km away
15. 3.849 km WSW of Ferndale, CaliforniaSat, Apr 18, 5:17 AM PST · 16593 days ago · 18 km deep · 96 km away
16. 2.942 km W of Trinidad, CaliforniaThu, Apr 16, 11:04 AM PST · 16595 days ago · 16 km deep · 46 km away
17. 2.365 km W of Indianola, CaliforniaTue, Apr 14, 12:55 AM PST · 16598 days ago · 20 km deep · 48 km away
18. 1.827 km W of Trinidad, CaliforniaSun, Apr 12, 4:11 PM PST · 16599 days ago · 25 km deep · 60 km away
19. 1.810 km W of Indianola, CaliforniaFri, Apr 10, 11:59 PM PST · 16601 days ago · 8 km deep · 88 km away
20. 2.0108 km W of Ferndale, CaliforniaFri, Apr 10, 5:42 PM PST · 16601 days ago · 5 km deep · 62 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1063009. Read Tue, Sep 22, 2026, 9:40 PM UTC.