M1.8 earthquake 56 km WNW of Samoa, California

Magnitude

1.8 (md), micro

Local time

Sun, Dec 11, 1977, 3:28 AM PST

UTC

1977-12-11 11:28:27 UTC

Depth

2.2 km (1.4 mi), shallow

Epicenter

40.939° N, 124.840° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 8.7 km horizontally, 6.1 km in depth

Depth from

From location

Station coverage gap

307°, poorly surrounded by stations

Stations used

7

• Manila, CaliforniaPopulation 784. Forecast58 kmW
• Eureka, CaliforniaPopulation 27,017. Forecast59 kmWNW
• Chico, CaliforniaPopulation 121,345. Forecast288 kmWNW

After

1. 1.837 km W of Ferndale, CaliforniaSun, Dec 11, 1:00 PM PST · 17817 days ago · 33 km deep · 47 km away
2. 2.016 km S of Ferndale, CaliforniaThu, Dec 15, 6:10 PM PST · 17813 days ago · 20 km deep · 73 km away
3. 2.418 km WSW of Weott, CaliforniaFri, Dec 16, 10:51 AM PST · 17812 days ago · 3 km deep · 100 km away
4. 2.6127 km W of Trinidad, CaliforniaSun, Dec 18, 4:46 AM PST · 17810 days ago · 5 km deep · 72 km away
5. 3.531 km W of Big Lagoon, CaliforniaMon, Dec 19, 2:07 PM PST · 17809 days ago · 22 km deep · 38 km away
6. 2.024 km ENE of Hydesville, CaliforniaSun, Dec 25, 2:25 AM PST · 17803 days ago · 25 km deep · 93 km away
7. 2.538 km W of Ferndale, CaliforniaSun, Dec 25, 7:35 PM PST · 17803 days ago · 20 km deep · 45 km away
8. 3.631 km SW of Ferndale, CaliforniaMon, Dec 26, 11:23 AM PST · 17802 days ago · 25 km deep · 72 km away
9. 3.328 km NNW of Shelter Cove, CaliforniaMon, Dec 26, 11:37 AM PST · 17802 days ago · 5 km deep · 92 km away
10. 1.822 km SSW of Ferndale, CaliforniaTue, Dec 27, 7:23 AM PST · 17801 days ago · 26 km deep · 71 km away
11. 1.822 km SW of Ferndale, CaliforniaTue, Dec 27, 8:51 AM PST · 17801 days ago · 26 km deep · 62 km away
12. 1.765 km W of Ferndale, CaliforniaTue, Dec 27, 6:25 PM PST · 17801 days ago · 7 km deep · 53 km away
13. 2.032 km SW of Ferndale, CaliforniaTue, Dec 27, 7:21 PM PST · 17801 days ago · 24 km deep · 73 km away
14. 1.812 km SSE of Blue Lake, CaliforniaTue, Dec 27, 7:24 PM PST · 17801 days ago · 25 km deep · 80 km away
15. 2.015 km SSW of Ferndale, CaliforniaThu, Dec 29, 10:27 AM PST · 17799 days ago · 27 km deep · 69 km away
16. 4.166 km WNW of Ferndale, CaliforniaThu, Dec 29, 11:25 PM PST · 17798 days ago · 4 km deep · 28 km away
17. 1.826 km WNW of Ferndale, CaliforniaFri, Dec 30, 1:48 AM PST · 17798 days ago · 4 km deep · 40 km away
18. 1.73 km N of Hydesville, CaliforniaSat, Dec 31, 4:02 AM PST · 17797 days ago · 18 km deep · 74 km away
19. 1.526 km SW of Ferndale, CaliforniaSat, Dec 31, 2:02 PM PST · 17797 days ago · 24 km deep · 71 km away
20. 4.052 km W of Indianola, CaliforniaSun, Jan 1, 10:39 PM PST · 17795 days ago · 24 km deep · 18 km away
21. 3.811 km W of Ferndale, CaliforniaWed, Jan 4, 4:23 AM PST · 17793 days ago · 22 km deep · 55 km away
22. 2.315 km SSW of Ferndale, CaliforniaThu, Jan 5, 8:49 PM PST · 17791 days ago · 23 km deep · 69 km away
23. 2.018 km W of Ferndale, CaliforniaSun, Jan 8, 2:48 PM PST · 17789 days ago · 21 km deep · 51 km away
24. 2.214 km NE of Redcrest, CaliforniaSun, Jan 8, 3:37 PM PST · 17789 days ago · 23 km deep · 97 km away
25. 2.520 km SSW of Ferndale, CaliforniaWed, Jan 11, 5:52 PM PST · 17786 days ago · 28 km deep · 73 km away
26. 1.832 km SW of Ferndale, CaliforniaWed, Jan 11, 7:13 PM PST · 17786 days ago · 27 km deep · 67 km away
27. 2.682 km W of Ferndale, CaliforniaThu, Jan 12, 12:53 AM PST · 17785 days ago · 8 km deep · 49 km away
28. 2.836 km SW of Ferndale, CaliforniaThu, Jan 12, 10:02 PM PST · 17784 days ago · 23 km deep · 72 km away
29. 3.121 km SSW of Ferndale, CaliforniaSat, Jan 14, 8:13 AM PST · 17783 days ago · 29 km deep · 73 km away
30. 2.730 km W of Ferndale, CaliforniaTue, Jan 17, 6:10 AM PST · 17780 days ago · 21 km deep · 40 km away
31. 1.62 km SW of Bayview, CaliforniaTue, Jan 17, 10:09 AM PST · 17780 days ago · 7 km deep · 57 km away
32. 2.463 km WSW of Ferndale, CaliforniaTue, Jan 17, 7:31 PM PST · 17780 days ago · 9 km deep · 75 km away
33. 1.726 km SSW of Scotia, CaliforniaWed, Jan 18, 6:12 AM PST · 17779 days ago · 6 km deep · 88 km away
34. 3.731 km WSW of Ferndale, CaliforniaWed, Jan 18, 8:08 AM PST · 17779 days ago · 21 km deep · 51 km away
35. 2.334 km SW of Ferndale, CaliforniaThu, Jan 19, 1:42 AM PST · 17778 days ago · 23 km deep · 67 km away
36. 1.831 km SW of Ferndale, CaliforniaThu, Jan 19, 4:17 PM PST · 17778 days ago · 20 km deep · 71 km away
37. 1.52 km SSE of Humboldt Hill, CaliforniaFri, Jan 20, 9:52 PM PST · 17776 days ago · 17 km deep · 61 km away
38. 1.82 km SSE of Humboldt Hill, CaliforniaFri, Jan 20, 10:20 PM PST · 17776 days ago · 16 km deep · 61 km away
39. 1.92 km SSE of Humboldt Hill, CaliforniaFri, Jan 20, 11:11 PM PST · 17776 days ago · 16 km deep · 61 km away
40. 1.72 km S of Humboldt Hill, CaliforniaFri, Jan 20, 11:24 PM PST · 17776 days ago · 17 km deep · 61 km away
41. 1.62 km S of Humboldt Hill, CaliforniaFri, Jan 20, 11:34 PM PST · 17776 days ago · 15 km deep · 61 km away
42. 2.632 km W of Samoa, CaliforniaSun, Jan 22, 5:39 PM PST · 17775 days ago · 25 km deep · 25 km away
43. 1.529 km WSW of Ferndale, CaliforniaMon, Jan 23, 5:19 PM PST · 17774 days ago · 22 km deep · 58 km away
44. 2.89 km WNW of Indianola, CaliforniaTue, Jan 24, 1:34 AM PST · 17773 days ago · 21 km deep · 49 km away
45. 1.72 km SSE of Humboldt Hill, CaliforniaThu, Jan 26, 9:46 AM PST · 17771 days ago · 16 km deep · 61 km away
46. 1.810 km WNW of Fields Landing, CaliforniaThu, Jan 26, 7:18 PM PST · 17771 days ago · 16 km deep · 47 km away
47. 2.484 km WSW of Ferndale, CaliforniaSat, Jan 28, 9:24 AM PST · 17769 days ago · 11 km deep · 83 km away
48. 2.236 km WSW of Ferndale, CaliforniaSat, Jan 28, 9:24 PM PST · 17768 days ago · 16 km deep · 55 km away
49. 1.935 km WSW of Ferndale, CaliforniaSat, Jan 28, 9:35 PM PST · 17768 days ago · 17 km deep · 56 km away
50. 3.234 km WSW of Ferndale, CaliforniaSat, Jan 28, 9:51 PM PST · 17768 days ago · 20 km deep · 58 km away
51. 3.735 km WSW of Ferndale, CaliforniaSat, Jan 28, 10:01 PM PST · 17768 days ago · 19 km deep · 57 km away
52. 1.827 km WSW of Ferndale, CaliforniaSat, Jan 28, 10:13 PM PST · 17768 days ago · 19 km deep · 56 km away
53. 1.837 km WSW of Ferndale, CaliforniaSat, Jan 28, 10:23 PM PST · 17768 days ago · 16 km deep · 55 km away
54. 1.636 km WSW of Ferndale, CaliforniaSat, Jan 28, 10:27 PM PST · 17768 days ago · 16 km deep · 56 km away
55. 1.634 km WSW of Ferndale, CaliforniaSat, Jan 28, 11:11 PM PST · 17768 days ago · 16 km deep · 55 km away
56. 1.558 km WSW of Ferndale, CaliforniaSun, Jan 29, 12:31 AM PST · 17768 days ago · 8 km deep · 60 km away
57. 1.526 km WSW of Ferndale, CaliforniaSun, Jan 29, 12:38 AM PST · 17768 days ago · 17 km deep · 57 km away
58. 2.136 km WSW of Ferndale, CaliforniaSun, Jan 29, 2:40 AM PST · 17768 days ago · 16 km deep · 55 km away
59. 1.934 km WSW of Ferndale, CaliforniaSun, Jan 29, 3:48 AM PST · 17768 days ago · 16 km deep · 54 km away
60. 2.822 km SSW of Ferndale, CaliforniaSun, Jan 29, 7:47 AM PST · 17768 days ago · 19 km deep · 73 km away

The first 60 of 73.

Before

1. 3.237 km W of Big Lagoon, CaliforniaSun, Dec 4, 9:45 PM PST · 17823 days ago · 16 km deep · 34 km away
2. 1.824 km SW of Scotia, CaliforniaSat, Dec 3, 8:07 AM PST · 17825 days ago · 6 km deep · 80 km away
3. 2.118 km SW of Scotia, CaliforniaFri, Dec 2, 5:53 PM PST · 17826 days ago · 4 km deep · 80 km away
4. 2.78 km WSW of Rio Dell, CaliforniaFri, Dec 2, 3:49 PM PST · 17826 days ago · 20 km deep · 74 km away
5. 2.67 km NE of Westhaven-Moonstone, CaliforniaFri, Dec 2, 11:26 AM PST · 17826 days ago · 18 km deep · 70 km away
6. 2.027 km SW of Scotia, CaliforniaFri, Dec 2, 6:49 AM PST · 17826 days ago · 7 km deep · 85 km away
7. 1.521 km SW of Ferndale, CaliforniaFri, Dec 2, 2:01 AM PST · 17826 days ago · 24 km deep · 62 km away
8. 1.78 km S of Scotia, CaliforniaSun, Nov 27, 7:41 PM PST · 17831 days ago · 8 km deep · 86 km away
9. 2.530 km WSW of Ferndale, CaliforniaSun, Nov 27, 10:19 AM PST · 17831 days ago · 23 km deep · 57 km away
10. 1.635 km WSW of Ferndale, CaliforniaSun, Nov 27, 9:57 AM PST · 17831 days ago · 23 km deep · 54 km away
11. 2.329 km SW of Scotia, CaliforniaSat, Nov 26, 10:46 AM PST · 17832 days ago · 21 km deep · 82 km away
12. 2.880 km W of Ferndale, CaliforniaSat, Nov 26, 12:12 AM PST · 17832 days ago · 5 km deep · 51 km away
13. 2.427 km WNW of Ferndale, CaliforniaFri, Nov 25, 8:56 PM PST · 17832 days ago · 20 km deep · 37 km away
14. 1.644 km WNW of Indianola, CaliforniaThu, Nov 24, 2:50 AM PST · 17834 days ago · 21 km deep · 15 km away
15. 1.625 km SW of Ferndale, CaliforniaThu, Nov 24, 2:26 AM PST · 17834 days ago · 26 km deep · 66 km away
16. 1.78 km S of Ferndale, CaliforniaThu, Nov 24, 1:03 AM PST · 17834 days ago · 19 km deep · 69 km away
17. 2.733 km W of Ferndale, CaliforniaWed, Nov 23, 12:11 PM PST · 17835 days ago · 20 km deep · 45 km away
18. 1.815 km W of Ferndale, CaliforniaSat, Nov 19, 3:52 PM PST · 17839 days ago · 20 km deep · 54 km away
19. 1.531 km WNW of Samoa, CaliforniaFri, Nov 18, 2:26 AM PST · 17840 days ago · 20 km deep · 27 km away
20. 2.418 km WNW of Indianola, CaliforniaMon, Nov 14, 9:57 AM PST · 17844 days ago · 23 km deep · 41 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1038097. Read Tue, Sep 22, 2026, 3:36 PM UTC.