M1.9 earthquake 20 km NE of Hydesville, California

Magnitude

1.9 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Tue, Nov 27, 1979, 11:42 PM PST

UTC

1979-11-28 07:42:55 UTC

Depth

25.0 km (15.5 mi), shallow

Epicenter

40.660° N, 123.908° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 0.9 km in depth

Depth from

From location

Station coverage gap

117°

Stations used

13

• Hydesville, CaliforniaPopulation 1,237. Forecast20 kmNE
• Fortuna, CaliforniaPopulation 12,000. Forecast22 kmENE
• Chico, CaliforniaPopulation 121,345. Forecast204 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast889 kmNNW

After

1. 1.616 km SW of Scotia, CaliforniaFri, Nov 30, 3:42 AM PST · 17107 days ago · 29 km deep · 42 km away
2. 2.216 km SE of Alderpoint, CaliforniaFri, Nov 30, 8:02 PM PST · 17106 days ago · 20 km deep · 75 km away
3. 1.841 km SW of Ferndale, CaliforniaWed, Dec 5, 3:14 AM PST · 17102 days ago · 23 km deep · 70 km away
4. 2.070 km W of Indianola, CaliforniaThu, Dec 6, 10:58 AM PST · 17100 days ago · 4 km deep · 98 km away
5. 1.620 km SW of Ferndale, CaliforniaFri, Dec 7, 12:50 AM PST · 17100 days ago · 22 km deep · 52 km away
6. 1.58 km WNW of Fields Landing, CaliforniaFri, Dec 7, 6:45 AM PST · 17100 days ago · 24 km deep · 35 km away
7. 1.625 km S of Ruth, CaliforniaFri, Dec 7, 8:05 AM PST · 17100 days ago · 7 km deep · 87 km away
8. 1.639 km SW of Ferndale, CaliforniaFri, Dec 7, 8:32 AM PST · 17100 days ago · 18 km deep · 69 km away
9. 1.833 km SW of Ferndale, CaliforniaFri, Dec 7, 3:17 PM PST · 17099 days ago · 27 km deep · 64 km away
10. 2.838 km SW of Ferndale, CaliforniaSat, Dec 8, 5:31 AM PST · 17099 days ago · 24 km deep · 67 km away
11. 3.138 km SW of Ferndale, CaliforniaSat, Dec 8, 9:28 AM PST · 17098 days ago · 24 km deep · 67 km away
12. 2.540 km SW of Ferndale, CaliforniaSat, Dec 8, 11:00 AM PST · 17098 days ago · 21 km deep · 70 km away
13. 1.62 km W of Bayview, CaliforniaSun, Dec 9, 1:05 AM PST · 17098 days ago · 11 km deep · 29 km away
14. 2.243 km SW of Ferndale, CaliforniaSun, Dec 9, 3:33 AM PST · 17098 days ago · 23 km deep · 73 km away
15. 2.043 km SW of Ferndale, CaliforniaSun, Dec 9, 3:35 AM PST · 17098 days ago · 24 km deep · 73 km away
16. 1.80 km WNW of Humboldt Hill, CaliforniaSun, Dec 9, 4:38 AM PST · 17098 days ago · 10 km deep · 25 km away
17. 2.045 km SW of Ferndale, CaliforniaSun, Dec 9, 8:17 AM PST · 17098 days ago · 15 km deep · 75 km away
18. 2.128 km SSW of Ferndale, CaliforniaSun, Dec 9, 6:10 PM PST · 17097 days ago · 16 km deep · 54 km away
19. 2.145 km WSW of Ferndale, CaliforniaSun, Dec 9, 11:59 PM PST · 17097 days ago · 30 km deep · 77 km away
20. 1.738 km SSW of Ferndale, CaliforniaMon, Dec 10, 12:50 AM PST · 17097 days ago · 21 km deep · 65 km away
21. 1.811 km NW of Mad River, CaliforniaMon, Dec 10, 11:51 PM PST · 17096 days ago · 23 km deep · 30 km away
22. 1.829 km SSW of Ferndale, CaliforniaTue, Dec 11, 11:50 AM PST · 17095 days ago · 27 km deep · 57 km away
23. 1.62 km N of Ferndale, CaliforniaFri, Dec 14, 6:39 AM PST · 17093 days ago · 20 km deep · 31 km away
24. 3.14 km N of Myers Flat, CaliforniaFri, Dec 14, 12:34 PM PST · 17092 days ago · 28 km deep · 40 km away
25. 1.613 km SW of Scotia, CaliforniaSat, Dec 15, 2:37 AM PST · 17092 days ago · 26 km deep · 39 km away
26. 2.919 km SW of Scotia, CaliforniaSat, Dec 15, 5:21 PM PST · 17091 days ago · 22 km deep · 45 km away
27. 1.518 km SW of Scotia, CaliforniaSat, Dec 15, 5:26 PM PST · 17091 days ago · 22 km deep · 44 km away
28. 1.910 km W of Ferndale, CaliforniaSun, Dec 16, 4:38 AM PST · 17091 days ago · 21 km deep · 41 km away
29. 2.18 km NW of Fields Landing, CaliforniaSun, Dec 16, 6:37 AM PST · 17091 days ago · 26 km deep · 35 km away
30. 2.07 km NNE of Mad River, CaliforniaMon, Dec 17, 3:56 PM PST · 17089 days ago · -1 km deep · 41 km away
31. 2.336 km SW of Ferndale, CaliforniaWed, Dec 19, 2:18 PM PST · 17087 days ago · 22 km deep · 64 km away
32. 1.536 km SW of Ferndale, CaliforniaWed, Dec 19, 9:38 PM PST · 17087 days ago · 29 km deep · 66 km away
33. 2.321 km WSW of Weott, CaliforniaThu, Dec 20, 7:24 AM PST · 17087 days ago · 4 km deep · 51 km away
34. 2.134 km SSW of Ferndale, CaliforniaFri, Dec 21, 4:06 PM PST · 17085 days ago · 21 km deep · 61 km away
35. 1.857 km WSW of Ferndale, CaliforniaSat, Dec 22, 4:02 AM PST · 17085 days ago · 0 km deep · 88 km away
36. 2.222 km NNE of Redcrest, CaliforniaSat, Dec 22, 8:58 PM PST · 17084 days ago · 22 km deep · 13 km away
37. 1.619 km SSW of Ferndale, CaliforniaSat, Dec 22, 10:18 PM PST · 17084 days ago · 28 km deep · 45 km away
38. 1.836 km SW of Ferndale, CaliforniaMon, Dec 24, 2:58 AM PST · 17083 days ago · 29 km deep · 64 km away
39. 2.01 km SSW of Humboldt Hill, CaliforniaMon, Dec 24, 2:27 PM PST · 17082 days ago · 10 km deep · 25 km away
40. 2.117 km ENE of Hydesville, CaliforniaWed, Dec 26, 6:40 PM PST · 17080 days ago · 23 km deep · 9 km away
41. 1.87 km W of Rio Dell, CaliforniaThu, Dec 27, 7:38 AM PST · 17080 days ago · 22 km deep · 31 km away
42. 3.044 km SW of Ferndale, CaliforniaFri, Dec 28, 11:32 AM PST · 17078 days ago · 20 km deep · 75 km away
43. 2.49 km WNW of Willow Creek, CaliforniaSun, Dec 30, 12:30 AM PST · 17077 days ago · 23 km deep · 37 km away
44. 2.314 km SE of Hayfork, CaliforniaSun, Dec 30, 5:43 AM PST · 17077 days ago · 52 km deep · 75 km away
45. 1.57 km W of Rio Dell, CaliforniaTue, Jan 1, 2:37 PM PST · 17074 days ago · 21 km deep · 30 km away
46. 1.935 km SSW of Ferndale, CaliforniaTue, Jan 1, 2:54 PM PST · 17074 days ago · 21 km deep · 63 km away
47. 1.66 km N of Fieldbrook, CaliforniaTue, Jan 1, 6:46 PM PST · 17074 days ago · 4 km deep · 42 km away
48. 2.516 km WNW of Hyampom, CaliforniaWed, Jan 2, 6:18 AM PST · 17074 days ago · 28 km deep · 22 km away
49. 1.612 km W of Ferndale, CaliforniaWed, Jan 2, 7:15 PM PST · 17073 days ago · 20 km deep · 43 km away
50. 1.85 km SSW of Fortuna, CaliforniaThu, Jan 3, 8:00 AM PST · 17073 days ago · 27 km deep · 26 km away
51. 1.521 km SSW of Ferndale, CaliforniaThu, Jan 3, 11:47 AM PST · 17072 days ago · 20 km deep · 50 km away
52. 1.541 km SW of Ferndale, CaliforniaFri, Jan 4, 4:46 AM PST · 17072 days ago · 20 km deep · 71 km away
53. 3.04 km NE of Miranda, CaliforniaWed, Jan 9, 4:17 AM PST · 17067 days ago · 30 km deep · 46 km away
54. 1.64 km E of Mad River, CaliforniaWed, Jan 9, 7:31 AM PST · 17067 days ago · 28 km deep · 45 km away
55. 1.634 km SSW of Ferndale, CaliforniaWed, Jan 9, 8:56 PM PST · 17066 days ago · 12 km deep · 61 km away
56. 3.247 km SW of Ferndale, CaliforniaWed, Jan 9, 9:21 PM PST · 17066 days ago · 20 km deep · 78 km away
57. 1.821 km SW of Ferndale, CaliforniaFri, Jan 11, 5:04 AM PST · 17065 days ago · 28 km deep · 50 km away
58. 1.628 km SW of Ferndale, CaliforniaFri, Jan 11, 7:06 PM PST · 17064 days ago · 18 km deep · 58 km away
59. 1.629 km SW of Scotia, CaliforniaFri, Jan 11, 9:20 PM PST · 17064 days ago · 19 km deep · 55 km away
60. 3.261 km W of Ferndale, CaliforniaFri, Jan 11, 9:59 PM PST · 17064 days ago · 7 km deep · 92 km away

The first 60 of 78.

Before

1. 2.267 km WSW of Ferndale, CaliforniaTue, Nov 27, 9:27 PM PST · 17109 days ago · 20 km deep · 99 km away
2. 2.342 km SW of Ferndale, CaliforniaTue, Nov 27, 7:24 PM PST · 17109 days ago · 24 km deep · 72 km away
3. 2.87 km W of Rio Dell, CaliforniaTue, Nov 27, 3:25 PM PST · 17109 days ago · 20 km deep · 31 km away
4. 1.99 km ESE of Alderpoint, CaliforniaMon, Nov 26, 4:33 PM PST · 17110 days ago · 14 km deep · 67 km away
5. 1.527 km WSW of Ferndale, CaliforniaFri, Nov 23, 11:17 PM PST · 17113 days ago · 27 km deep · 58 km away
6. 1.630 km SW of Ferndale, CaliforniaFri, Nov 23, 5:26 PM PST · 17113 days ago · 30 km deep · 60 km away
7. 1.653 km SW of Ferndale, CaliforniaFri, Nov 23, 3:24 PM PST · 17113 days ago · 26 km deep · 84 km away
8. 2.65 km WNW of Junction City, CaliforniaThu, Nov 22, 11:27 PM PST · 17114 days ago · 12 km deep · 67 km away
9. 1.5near the coast of Northern CaliforniaThu, Nov 22, 4:03 PM PST · 17114 days ago · 9 km deep · 60 km away
10. 2.136 km SSW of Ferndale, CaliforniaThu, Nov 22, 3:50 PM PST · 17114 days ago · 11 km deep · 64 km away
11. 1.71 km SW of Loleta, CaliforniaThu, Nov 22, 9:17 AM PST · 17115 days ago · 17 km deep · 28 km away
12. 1.64 km ENE of Westhaven-Moonstone, CaliforniaThu, Nov 22, 7:03 AM PST · 17115 days ago · 19 km deep · 47 km away
13. 1.61 km SE of Westhaven-Moonstone, CaliforniaThu, Nov 22, 6:06 AM PST · 17115 days ago · 16 km deep · 44 km away
14. 2.247 km SW of Ferndale, CaliforniaWed, Nov 21, 4:28 AM PST · 17116 days ago · 7 km deep · 78 km away
15. 3.425 km SW of Scotia, CaliforniaWed, Nov 21, 1:22 AM PST · 17116 days ago · 18 km deep · 51 km away
16. 1.79 km SE of Blue Lake, CaliforniaMon, Nov 19, 3:05 PM PST · 17117 days ago · 1 km deep · 19 km away
17. 1.68 km SSW of Junction City, CaliforniaSun, Nov 18, 10:00 PM PST · 17118 days ago · 3 km deep · 69 km away
18. 1.512 km SE of Blue Lake, CaliforniaFri, Nov 16, 11:57 AM PST · 17120 days ago · 21 km deep · 18 km away
19. 2.46 km SSW of Scotia, CaliforniaFri, Nov 16, 9:01 AM PST · 17121 days ago · 21 km deep · 32 km away
20. 1.69 km W of Mad River, CaliforniaFri, Nov 16, 1:32 AM PST · 17121 days ago · 2 km deep · 34 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1049068. Read Thu, Oct 1, 2026, 4:48 AM UTC.