M1.7 earthquake 8 km ESE of Hydesville, California

Magnitude

1.7 (md), micro

Local time

Mon, Apr 11, 1983, 3:13 AM PST

UTC

1983-04-11 11:13:44 UTC

Depth

21.9 km (13.6 mi), shallow

Epicenter

40.516° N, 124.008° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.6 km horizontally, 0.9 km in depth

Magnitude uncertainty

±0.04

Depth from

From location

Station coverage gap

157°

Stations used

8

• Hydesville, CaliforniaPopulation 1,237. Forecast8 kmESE
• Fortuna, CaliforniaPopulation 12,000. Forecast16 kmSE
• Chico, CaliforniaPopulation 121,345. Forecast204 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast881 kmNNW

After

1. 1.814 km SE of Indianola, CaliforniaWed, Apr 13, 1:44 AM PST · 15875 days ago · 21 km deep · 23 km away
2. 2.236 km WSW of Ferndale, CaliforniaWed, Apr 13, 6:59 PM PST · 15875 days ago · 29 km deep · 57 km away
3. 1.919 km WSW of Weott, CaliforniaThu, Apr 14, 12:45 AM PST · 15874 days ago · 22 km deep · 32 km away
4. 2.07 km SSW of Ferndale, CaliforniaThu, Apr 14, 6:04 AM PST · 15874 days ago · 10 km deep · 25 km away
5. 1.926 km SW of Scotia, CaliforniaThu, Apr 14, 8:29 AM PST · 15874 days ago · 5 km deep · 35 km away
6. 3.038 km SW of Ferndale, CaliforniaSat, Apr 16, 3:17 AM PST · 15872 days ago · 22 km deep · 53 km away
7. 1.724 km WSW of Weott, CaliforniaSat, Apr 16, 7:35 AM PST · 15872 days ago · 6 km deep · 34 km away
8. 1.758 km WNW of Fields Landing, CaliforniaSat, Apr 16, 2:24 PM PST · 15872 days ago · 9 km deep · 84 km away
9. 1.66 km NE of Mad River, CaliforniaSun, Apr 17, 10:12 AM PST · 15871 days ago · -1 km deep · 46 km away
10. 2.314 km WNW of Ferndale, CaliforniaSun, Apr 17, 5:29 PM PST · 15871 days ago · 21 km deep · 37 km away
11. 1.62 km N of Indianola, CaliforniaMon, Apr 18, 3:36 AM PST · 15870 days ago · 4 km deep · 29 km away
12. 3.950 km W of Ferndale, CaliforniaTue, Apr 19, 2:09 PM PST · 15869 days ago · 85 km deep · 72 km away
13. 1.88 km W of Rio Dell, CaliforniaTue, Apr 19, 5:25 PM PST · 15869 days ago · 20 km deep · 17 km away
14. 2.760 km WSW of Ferndale, CaliforniaWed, Apr 20, 8:31 AM PST · 15868 days ago · 25 km deep · 79 km away
15. 3.834 km SW of Ferndale, CaliforniaWed, Apr 20, 9:54 AM PST · 15868 days ago · 17 km deep · 47 km away
16. 2.025 km SSW of Ferndale, CaliforniaWed, Apr 20, 1:30 PM PST · 15868 days ago · 20 km deep · 38 km away
17. 2.021 km SSW of Ferndale, CaliforniaWed, Apr 20, 1:33 PM PST · 15868 days ago · 21 km deep · 33 km away
18. 3.535 km SSW of Ferndale, CaliforniaWed, Apr 20, 1:44 PM PST · 15868 days ago · 19 km deep · 47 km away
19. 2.119 km SW of Ferndale, CaliforniaWed, Apr 20, 9:41 PM PST · 15868 days ago · 22 km deep · 38 km away
20. 1.939 km SSW of Ferndale, CaliforniaThu, Apr 21, 8:30 AM PST · 15867 days ago · 12 km deep · 49 km away
21. 1.619 km SSW of Ferndale, CaliforniaThu, Apr 21, 10:55 AM PST · 15867 days ago · 22 km deep · 31 km away
22. 2.419 km W of Ferndale, CaliforniaThu, Apr 21, 11:40 AM PST · 15867 days ago · 23 km deep · 42 km away
23. 1.635 km SSW of Ferndale, CaliforniaFri, Apr 22, 3:58 AM PST · 15866 days ago · 4 km deep · 44 km away
24. 2.118 km WNW of Hyampom, CaliforniaFri, Apr 22, 8:35 PM PST · 15866 days ago · 29 km deep · 37 km away
25. 1.514 km S of Ferndale, CaliforniaFri, Apr 22, 11:13 PM PST · 15866 days ago · 24 km deep · 25 km away
26. 1.511 km S of Ferndale, CaliforniaSat, Apr 23, 8:15 AM PST · 15865 days ago · 6 km deep · 23 km away
27. 4.040 km WSW of Ferndale, CaliforniaSat, Apr 23, 2:52 PM PST · 15865 days ago · 20 km deep · 59 km away
28. 3.355 km WSW of Ferndale, CaliforniaSat, Apr 23, 7:08 PM PST · 15865 days ago · 23 km deep · 73 km away
29. 2.115 km ESE of Indianola, CaliforniaSat, Apr 23, 10:50 PM PST · 15865 days ago · 20 km deep · 27 km away
30. 3.216 km SW of Ferndale, CaliforniaSun, Apr 24, 10:08 AM PDT · 15864 days ago · 25 km deep · 35 km away
31. 1.620 km WSW of Weott, CaliforniaTue, Apr 26, 8:58 AM PDT · 15862 days ago · -1 km deep · 33 km away
32. 1.534 km SSW of Ferndale, CaliforniaTue, Apr 26, 6:37 PM PDT · 15862 days ago · 5 km deep · 43 km away
33. 1.528 km WNW of Ferndale, CaliforniaWed, Apr 27, 10:09 AM PDT · 15861 days ago · 23 km deep · 51 km away
34. 2.041 km SW of Ferndale, CaliforniaThu, Apr 28, 3:24 AM PDT · 15860 days ago · 10 km deep · 54 km away
35. 1.811 km SW of Scotia, CaliforniaFri, Apr 29, 7:31 AM PDT · 15859 days ago · 30 km deep · 19 km away
36. 3.128 km SSW of Ferndale, CaliforniaFri, Apr 29, 1:48 PM PDT · 15859 days ago · 18 km deep · 40 km away
37. 1.74 km SE of Leggett, CaliforniaSat, Apr 30, 9:43 PM PDT · 15858 days ago · 7 km deep · 80 km away
38. 1.924 km SSW of Ferndale, CaliforniaSun, May 1, 10:02 AM PDT · 15857 days ago · 19 km deep · 37 km away
39. 2.026 km SSW of Ferndale, CaliforniaSun, May 1, 5:19 PM PDT · 15857 days ago · 16 km deep · 36 km away
40. 1.624 km WSW of Ferndale, CaliforniaSun, May 1, 8:47 PM PDT · 15857 days ago · 23 km deep · 46 km away
41. 1.67 km WNW of Laytonville, CaliforniaMon, May 2, 4:08 PM PDT · 15856 days ago · 4 km deep · 98 km away
42. 2.132 km SSW of Ferndale, CaliforniaThu, May 5, 11:38 AM PDT · 15853 days ago · 5 km deep · 42 km away
43. 1.97 km W of Laytonville, CaliforniaFri, May 6, 3:47 PM PDT · 15852 days ago · 1 km deep · 98 km away
44. 1.831 km SW of Ferndale, CaliforniaFri, May 6, 7:25 PM PDT · 15852 days ago · 25 km deep · 49 km away
45. 1.736 km WSW of Ferndale, CaliforniaFri, May 6, 8:52 PM PDT · 15852 days ago · 23 km deep · 54 km away
46. 2.911 km WNW of Fields Landing, CaliforniaFri, May 6, 11:09 PM PDT · 15852 days ago · 20 km deep · 39 km away
47. 1.614 km ENE of Hydesville, CaliforniaSat, May 7, 8:25 AM PDT · 15851 days ago · 22 km deep · 11 km away
48. 1.726 km NE of Trinity Village, CaliforniaSat, May 7, 9:21 PM PDT · 15851 days ago · 4 km deep · 83 km away
49. 2.025 km WNW of Samoa, CaliforniaSun, May 8, 9:40 AM PDT · 15850 days ago · 29 km deep · 58 km away
50. 2.735 km SSW of Ferndale, CaliforniaMon, May 9, 5:48 PM PDT · 15849 days ago · 19 km deep · 46 km away
51. 1.7near the coast of Northern CaliforniaMon, May 9, 8:56 PM PDT · 15849 days ago · 25 km deep · 14 km away
52. 3.443 km SW of Ferndale, CaliforniaTue, May 10, 11:48 PM PDT · 15848 days ago · 23 km deep · 60 km away
53. 2.214 km WSW of Ferndale, CaliforniaWed, May 11, 9:33 PM PDT · 15847 days ago · 16 km deep · 35 km away
54. 2.743 km SW of Ferndale, CaliforniaThu, May 12, 5:18 AM PDT · 15846 days ago · 21 km deep · 59 km away
55. 2.136 km SSW of Ferndale, CaliforniaThu, May 12, 2:48 PM PDT · 15846 days ago · 20 km deep · 48 km away
56. 2.129 km SW of Ferndale, CaliforniaFri, May 13, 6:42 AM PDT · 15845 days ago · 21 km deep · 44 km away
57. 2.917 km SW of Scotia, CaliforniaFri, May 13, 1:29 PM PDT · 15845 days ago · 32 km deep · 25 km away
58. 2.419 km NE of Trinity Village, CaliforniaFri, May 13, 10:00 PM PDT · 15845 days ago · 33 km deep · 76 km away
59. 1.68 km NE of Hydesville, CaliforniaSat, May 14, 4:14 AM PDT · 15844 days ago · 22 km deep · 10 km away
60. 2.816 km WNW of Indianola, CaliforniaSun, May 15, 8:49 AM PDT · 15843 days ago · 25 km deep · 43 km away

The first 60 of 86.

Before

1. 1.727 km SSW of Ferndale, CaliforniaSun, Apr 10, 1:46 PM PST · 15878 days ago · 13 km deep · 38 km away
2. 2.326 km SSW of Ferndale, CaliforniaSun, Apr 10, 11:49 AM PST · 15878 days ago · 14 km deep · 38 km away
3. 1.513 km ESE of Orick, CaliforniaThu, Apr 7, 9:02 PM PST · 15881 days ago · 15 km deep · 82 km away
4. 2.135 km SW of Scotia, CaliforniaThu, Apr 7, 12:02 PM PST · 15881 days ago · 11 km deep · 43 km away
5. 1.72 km WNW of Fortuna, CaliforniaThu, Apr 7, 1:23 AM PST · 15881 days ago · 10 km deep · 19 km away
6. 2.326 km SW of Ferndale, CaliforniaMon, Apr 4, 8:55 AM PST · 15884 days ago · 27 km deep · 39 km away
7. 1.821 km SSW of Ferndale, CaliforniaFri, Apr 1, 9:50 AM PST · 15887 days ago · 20 km deep · 33 km away
8. 2.121 km SW of Scotia, CaliforniaWed, Mar 30, 2:58 PM PST · 15889 days ago · 19 km deep · 30 km away
9. 2.025 km SSW of Ferndale, CaliforniaWed, Mar 30, 7:53 AM PST · 15889 days ago · 17 km deep · 35 km away
10. 1.841 km SSW of Ferndale, CaliforniaWed, Mar 30, 6:51 AM PST · 15889 days ago · 17 km deep · 52 km away
11. 2.035 km SSW of Ferndale, CaliforniaTue, Mar 29, 8:29 PM PST · 15890 days ago · 21 km deep · 47 km away
12. 2.50 km NNE of Fieldbrook, CaliforniaTue, Mar 29, 2:03 AM PST · 15890 days ago · 21 km deep · 51 km away
13. 1.512 km WNW of Mad River, CaliforniaMon, Mar 28, 12:00 PM PST · 15891 days ago · 25 km deep · 30 km away
14. 1.9near the coast of Northern CaliforniaMon, Mar 28, 6:41 AM PST · 15891 days ago · 23 km deep · 36 km away
15. 3.1off the coast of Northern CaliforniaMon, Mar 28, 12:03 AM PST · 15892 days ago · 51 km deep · 86 km away
16. 3.012 km WSW of Trinidad, CaliforniaSun, Mar 27, 2:09 PM PST · 15892 days ago · 17 km deep · 59 km away
17. 1.739 km SW of Ferndale, CaliforniaSun, Mar 27, 9:12 AM PST · 15892 days ago · 8 km deep · 54 km away
18. 2.18 km SE of Burnt Ranch, CaliforniaSat, Mar 26, 9:01 PM PST · 15893 days ago · 39 km deep · 58 km away
19. 1.617 km SW of Scotia, CaliforniaFri, Mar 25, 11:43 PM PST · 15894 days ago · 19 km deep · 26 km away
20. 1.521 km W of Ferndale, CaliforniaFri, Mar 25, 6:51 PM PST · 15894 days ago · 16 km deep · 43 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1090255. Read Tue, Sep 29, 2026, 7:52 PM UTC.