M1.7 earthquake 42 km SW of Ferndale, California

Magnitude

1.7 (md), micro

Local time

Fri, Aug 20, 1982, 12:54 PM PDT

UTC

1982-08-20 19:54:38 UTC

Depth

25.2 km (15.7 mi), shallow

Epicenter

40.272° N, 124.563° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 3.2 km horizontally, 6.5 km in depth

Depth from

From location

Station coverage gap

339°, poorly surrounded by stations

Stations used

3

• Ferndale, CaliforniaPopulation 1,369. Forecast42 kmSW
• Fortuna, CaliforniaPopulation 12,000. Forecast50 kmSW
• Chico, CaliforniaPopulation 121,345. Forecast240 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast889 kmNW

After

1. 1.63 km NW of McKinleyville, CaliforniaFri, Aug 20, 8:22 PM PDT · 16111 days ago · 4 km deep · 85 km away
2. 2.133 km WSW of Ferndale, CaliforniaSat, Aug 21, 7:59 AM PDT · 16111 days ago · 21 km deep · 24 km away
3. 2.128 km WSW of Ferndale, CaliforniaSat, Aug 21, 9:27 AM PDT · 16111 days ago · 21 km deep · 27 km away
4. 2.637 km SW of Ferndale, CaliforniaSun, Aug 22, 12:05 AM PDT · 16110 days ago · 23 km deep · 5 km away
5. 1.938 km SW of Ferndale, CaliforniaSun, Aug 22, 12:08 AM PDT · 16110 days ago · 26 km deep · 5 km away
6. 1.912 km W of Indianola, CaliforniaSun, Aug 22, 2:17 PM PDT · 16110 days ago · 7 km deep · 47 km away
7. 1.712 km W of Indianola, CaliforniaSun, Aug 22, 2:20 PM PDT · 16110 days ago · 7 km deep · 47 km away
8. 2.413 km W of Indianola, CaliforniaSun, Aug 22, 2:20 PM PDT · 16110 days ago · 6 km deep · 47 km away
9. 2.513 km W of Indianola, CaliforniaSun, Aug 22, 2:27 PM PDT · 16110 days ago · 7 km deep · 47 km away
10. 1.913 km W of Indianola, CaliforniaSun, Aug 22, 2:34 PM PDT · 16110 days ago · 7 km deep · 46 km away
11. 1.713 km W of Indianola, CaliforniaSun, Aug 22, 2:37 PM PDT · 16110 days ago · 8 km deep · 46 km away
12. 1.69 km WSW of Indianola, CaliforniaSun, Aug 22, 5:41 PM PDT · 16109 days ago · 14 km deep · 47 km away
13. 1.820 km SW of Ferndale, CaliforniaTue, Aug 24, 2:05 PM PDT · 16108 days ago · 25 km deep · 22 km away
14. 1.519 km SW of Ferndale, CaliforniaTue, Aug 24, 10:10 PM PDT · 16107 days ago · 21 km deep · 22 km away
15. 1.525 km SW of Scotia, CaliforniaThu, Aug 26, 2:07 AM PDT · 16106 days ago · 22 km deep · 20 km away
16. 2.011 km E of Blue Lake, CaliforniaFri, Aug 27, 8:44 AM PDT · 16105 days ago · -1 km deep · 91 km away
17. 1.718 km WSW of Ferndale, CaliforniaFri, Aug 27, 9:00 AM PDT · 16105 days ago · 23 km deep · 28 km away
18. 1.730 km SSW of Ferndale, CaliforniaFri, Aug 27, 4:38 PM PDT · 16104 days ago · 28 km deep · 13 km away
19. 1.811 km WSW of Redcrest, CaliforniaFri, Aug 27, 8:58 PM PDT · 16104 days ago · 6 km deep · 44 km away
20. 2.535 km SW of Ferndale, CaliforniaSat, Aug 28, 3:35 AM PDT · 16104 days ago · 17 km deep · 9 km away
21. 1.74 km WNW of Indianola, CaliforniaSat, Aug 28, 1:49 PM PDT · 16104 days ago · 34 km deep · 54 km away
22. 1.527 km WSW of Ferndale, CaliforniaSat, Aug 28, 7:11 PM PDT · 16103 days ago · 30 km deep · 22 km away
23. 3.278 km WSW of Ferndale, CaliforniaSat, Aug 28, 7:18 PM PDT · 16103 days ago · 10 km deep · 53 km away
24. 1.83 km NNE of Weott, CaliforniaSun, Aug 29, 2:11 AM PDT · 16103 days ago · 7 km deep · 56 km away
25. 2.537 km SW of Ferndale, CaliforniaSun, Aug 29, 5:29 AM PDT · 16103 days ago · 22 km deep · 5 km away
26. 1.634 km SW of Ferndale, CaliforniaSun, Aug 29, 8:36 AM PDT · 16103 days ago · 17 km deep · 9 km away
27. 3.680 km W of Ferndale, CaliforniaSun, Aug 29, 2:23 PM PDT · 16103 days ago · 1 km deep · 72 km away
28. 2.782 km W of Ferndale, CaliforniaSun, Aug 29, 5:13 PM PDT · 16102 days ago · 25 km deep · 74 km away
29. 1.67 km W of Rio Dell, CaliforniaTue, Aug 31, 3:29 PM PDT · 16100 days ago · 19 km deep · 39 km away
30. 1.643 km SW of Ferndale, CaliforniaTue, Aug 31, 5:39 PM PDT · 16100 days ago · 19 km deep · 4 km away
31. 2.118 km SSW of Ferndale, CaliforniaTue, Aug 31, 8:10 PM PDT · 16100 days ago · 22 km deep · 24 km away
32. 3.010 km ENE of Redcrest, CaliforniaWed, Sep 1, 1:21 AM PDT · 16100 days ago · 6 km deep · 64 km away
33. 2.910 km ENE of Redcrest, CaliforniaWed, Sep 1, 1:51 AM PDT · 16100 days ago · 5 km deep · 65 km away
34. 1.624 km WSW of Ferndale, CaliforniaWed, Sep 1, 6:24 AM PDT · 16100 days ago · 21 km deep · 24 km away
35. 1.912 km NE of Blue Lake, CaliforniaThu, Sep 2, 4:42 PM PDT · 16098 days ago · 4 km deep · 95 km away
36. 1.515 km SW of Scotia, CaliforniaThu, Sep 2, 4:58 PM PDT · 16098 days ago · 17 km deep · 30 km away
37. 2.254 km W of Ferndale, CaliforniaThu, Sep 2, 5:14 PM PDT · 16098 days ago · 34 km deep · 42 km away
38. 1.711 km NE of Phillipsville, CaliforniaThu, Sep 2, 9:59 PM PDT · 16098 days ago · 26 km deep · 73 km away
39. 2.527 km W of Trinidad, CaliforniaThu, Sep 2, 11:13 PM PDT · 16098 days ago · 17 km deep · 87 km away
40. 3.065 km WSW of Ferndale, CaliforniaFri, Sep 3, 1:54 AM PDT · 16098 days ago · 25 km deep · 43 km away
41. 3.1102 km W of Ferndale, CaliforniaFri, Sep 3, 9:37 AM PDT · 16098 days ago · 5 km deep · 80 km away
42. 3.346 km WSW of Ferndale, CaliforniaFri, Sep 3, 9:38 AM PDT · 16098 days ago · 18 km deep · 31 km away
43. 2.532 km WNW of Ferndale, CaliforniaFri, Sep 3, 5:55 PM PDT · 16097 days ago · 13 km deep · 41 km away
44. 2.564 km WSW of Ferndale, CaliforniaTue, Sep 7, 2:27 AM PDT · 16094 days ago · 0 km deep · 39 km away
45. 2.129 km SW of Scotia, CaliforniaTue, Sep 7, 4:59 AM PDT · 16094 days ago · 22 km deep · 17 km away
46. 1.631 km SW of Scotia, CaliforniaTue, Sep 7, 5:10 AM PDT · 16094 days ago · 22 km deep · 16 km away
47. 1.733 km W of Ferndale, CaliforniaTue, Sep 7, 5:42 AM PDT · 16094 days ago · 31 km deep · 29 km away
48. 1.528 km SW of Scotia, CaliforniaTue, Sep 7, 7:40 AM PDT · 16094 days ago · 20 km deep · 20 km away
49. 1.62 km WNW of Bayview, CaliforniaTue, Sep 7, 1:35 PM PDT · 16094 days ago · 4 km deep · 64 km away
50. 2.414 km WNW of Fields Landing, CaliforniaTue, Sep 7, 6:52 PM PDT · 16093 days ago · 24 km deep · 57 km away
51. 2.513 km WSW of Ferndale, CaliforniaWed, Sep 8, 3:53 AM PDT · 16093 days ago · 24 km deep · 31 km away
52. 2.020 km SW of Scotia, CaliforniaWed, Sep 8, 1:33 PM PDT · 16093 days ago · 27 km deep · 25 km away
53. 2.545 km SW of Ferndale, CaliforniaWed, Sep 8, 3:42 PM PDT · 16092 days ago · 16 km deep · 7 km away
54. 3.362 km WNW of Indianola, CaliforniaThu, Sep 9, 4:26 AM PDT · 16092 days ago · 7 km deep · 68 km away
55. 2.556 km WSW of Ferndale, CaliforniaThu, Sep 9, 3:42 PM PDT · 16091 days ago · 5 km deep · 37 km away
56. 2.132 km SW of Ferndale, CaliforniaSat, Sep 11, 4:11 PM PDT · 16089 days ago · 24 km deep · 16 km away
57. 1.825 km SW of Ferndale, CaliforniaSun, Sep 12, 6:54 AM PDT · 16089 days ago · 17 km deep · 16 km away
58. 1.726 km SW of Ferndale, CaliforniaSun, Sep 12, 12:04 PM PDT · 16089 days ago · 23 km deep · 19 km away
59. 1.636 km WSW of Ferndale, CaliforniaSun, Sep 12, 2:36 PM PDT · 16089 days ago · 24 km deep · 19 km away
60. 1.634 km SW of Ferndale, CaliforniaSun, Sep 12, 2:37 PM PDT · 16089 days ago · 29 km deep · 13 km away

The first 60 of 129.

Before

1. 2.037 km SW of Ferndale, CaliforniaThu, Aug 19, 11:08 AM PDT · 16113 days ago · 22 km deep · 4 km away
2. 3.138 km SW of Ferndale, CaliforniaThu, Aug 19, 2:24 AM PDT · 16113 days ago · 25 km deep · 5 km away
3. 2.226 km SW of Ferndale, CaliforniaThu, Aug 19, 1:54 AM PDT · 16113 days ago · 18 km deep · 15 km away
4. 2.314 km WNW of Fields Landing, CaliforniaWed, Aug 18, 3:40 PM PDT · 16113 days ago · 23 km deep · 55 km away
5. 2.788 km W of Ferndale, CaliforniaWed, Aug 18, 8:42 AM PDT · 16114 days ago · 8 km deep · 65 km away
6. 3.126 km SW of Scotia, CaliforniaTue, Aug 17, 12:27 PM PDT · 16115 days ago · 8 km deep · 24 km away
7. 3.048 km W of Ferndale, CaliforniaTue, Aug 17, 7:10 AM PDT · 16115 days ago · 19 km deep · 42 km away
8. 1.731 km SW of Scotia, CaliforniaTue, Aug 17, 6:05 AM PDT · 16115 days ago · 22 km deep · 16 km away
9. 1.914 km WNW of Ferndale, CaliforniaMon, Aug 16, 3:21 AM PDT · 16116 days ago · 9 km deep · 41 km away
10. 1.719 km WSW of Scotia, CaliforniaSun, Aug 15, 4:25 AM PDT · 16117 days ago · 29 km deep · 26 km away
11. 2.38 km SSE of Ferndale, CaliforniaSat, Aug 14, 2:53 PM PDT · 16118 days ago · 25 km deep · 38 km away
12. 1.9118 km W of Ferndale, CaliforniaSat, Aug 14, 2:23 AM PDT · 16118 days ago · 5 km deep · 92 km away
13. 2.07 km SSW of Scotia, CaliforniaFri, Aug 13, 2:11 PM PDT · 16119 days ago · 26 km deep · 40 km away
14. 2.430 km SW of Scotia, CaliforniaThu, Aug 12, 5:37 PM PDT · 16119 days ago · 23 km deep · 17 km away
15. 1.625 km SSW of Ferndale, CaliforniaMon, Aug 9, 7:43 PM PDT · 16122 days ago · 19 km deep · 19 km away
16. 1.911 km SW of Scotia, CaliforniaSun, Aug 8, 7:01 AM PDT · 16124 days ago · 28 km deep · 35 km away
17. 2.44 km N of Redway, CaliforniaSat, Aug 7, 4:00 AM PDT · 16125 days ago · 18 km deep · 65 km away
18. 1.926 km WNW of Ferndale, CaliforniaTue, Aug 3, 8:18 PM PDT · 16128 days ago · 23 km deep · 45 km away
19. 1.630 km W of Trinidad, CaliforniaTue, Aug 3, 2:30 AM PDT · 16129 days ago · 0 km deep · 88 km away
20. 2.26 km SSW of Big Lagoon, CaliforniaTue, Aug 3, 1:21 AM PDT · 16129 days ago · 13 km deep · 99 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1077802. Read Wed, Sep 30, 2026, 9:47 AM UTC.