M1.9 earthquake 34 km WNW of Samoa, California

Magnitude

1.9 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Mon, Aug 18, 1980, 7:45 PM PDT

UTC

1980-08-19 02:45:41 UTC

Depth

15.6 km (9.7 mi), shallow

Epicenter

40.942° N, 124.565° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 10.8 km horizontally, 3.0 km in depth

Depth from

From location

Station coverage gap

306°, poorly surrounded by stations

Stations used

6

• Manila, CaliforniaPopulation 784. Forecast35 kmWNW
• Eureka, CaliforniaPopulation 27,017. Forecast37 kmWNW
• Chico, CaliforniaPopulation 121,345. Forecast268 kmWNW

After

1. 2.039 km SW of Ferndale, CaliforniaWed, Aug 20, 3:49 AM PDT · 16846 days ago · 21 km deep · 71 km away
2. 1.940 km SSW of Ferndale, CaliforniaWed, Aug 20, 3:50 AM PDT · 16846 days ago · 14 km deep · 75 km away
3. 1.714 km SW of Ferndale, CaliforniaFri, Aug 22, 10:19 PM PDT · 16843 days ago · 22 km deep · 54 km away
4. 2.896 km WSW of Ferndale, CaliforniaSat, Aug 23, 6:11 AM PDT · 16843 days ago · 13 km deep · 91 km away
5. 2.731 km WSW of Ferndale, CaliforniaSat, Aug 23, 7:57 AM PDT · 16843 days ago · 20 km deep · 55 km away
6. 1.725 km W of Ferndale, CaliforniaSat, Aug 23, 9:38 AM PDT · 16843 days ago · 21 km deep · 42 km away
7. 1.624 km SW of Ferndale, CaliforniaSun, Aug 24, 7:37 AM PDT · 16842 days ago · 27 km deep · 60 km away
8. 3.319 km SSW of Ferndale, CaliforniaSun, Aug 24, 9:18 AM PDT · 16842 days ago · 25 km deep · 63 km away
9. 1.516 km WSW of Scotia, CaliforniaSun, Aug 24, 7:53 PM PDT · 16841 days ago · 24 km deep · 63 km away
10. 1.638 km SW of Ferndale, CaliforniaSun, Aug 24, 8:30 PM PDT · 16841 days ago · 23 km deep · 71 km away
11. 1.63 km E of Big Lagoon, CaliforniaMon, Aug 25, 1:55 AM PDT · 16841 days ago · 24 km deep · 46 km away
12. 1.93 km NNW of Ferndale, CaliforniaMon, Aug 25, 3:29 PM PDT · 16841 days ago · -1 km deep · 45 km away
13. 1.745 km SW of Ferndale, CaliforniaTue, Aug 26, 3:20 AM PDT · 16840 days ago · 18 km deep · 72 km away
14. 1.921 km W of Indianola, CaliforniaTue, Aug 26, 5:35 AM PDT · 16840 days ago · 28 km deep · 26 km away
15. 1.512 km W of Ferndale, CaliforniaTue, Aug 26, 11:50 AM PDT · 16840 days ago · 20 km deep · 43 km away
16. 2.025 km SSW of Ferndale, CaliforniaTue, Aug 26, 3:29 PM PDT · 16840 days ago · 18 km deep · 64 km away
17. 2.025 km SW of Ferndale, CaliforniaWed, Aug 27, 7:29 PM PDT · 16838 days ago · 24 km deep · 55 km away
18. 1.529 km SW of Scotia, CaliforniaThu, Aug 28, 2:29 AM PDT · 16838 days ago · 18 km deep · 75 km away
19. 2.158 km WSW of Ferndale, CaliforniaThu, Aug 28, 11:09 PM PDT · 16837 days ago · 22 km deep · 69 km away
20. 2.09 km SSW of Ferndale, CaliforniaFri, Aug 29, 3:06 AM PDT · 16837 days ago · 19 km deep · 53 km away
21. 2.28 km SSW of Ferndale, CaliforniaFri, Aug 29, 3:06 AM PDT · 16837 days ago · 20 km deep · 53 km away
22. 1.813 km WNW of Ferndale, CaliforniaFri, Aug 29, 5:48 PM PDT · 16837 days ago · 21 km deep · 38 km away
23. 2.879 km W of Ferndale, CaliforniaSat, Aug 30, 6:46 PM PDT · 16836 days ago · 4 km deep · 65 km away
24. 1.826 km SSW of Ferndale, CaliforniaMon, Sep 1, 9:54 PM PDT · 16833 days ago · 19 km deep · 67 km away
25. 1.68 km WSW of Scotia, CaliforniaTue, Sep 2, 2:42 AM PDT · 16833 days ago · 26 km deep · 64 km away
26. 1.65 km NE of Trinity Village, CaliforniaTue, Sep 2, 4:21 AM PDT · 16833 days ago · 21 km deep · 91 km away
27. 1.722 km WSW of Ferndale, CaliforniaTue, Sep 2, 7:43 AM PDT · 16833 days ago · 23 km deep · 48 km away
28. 2.636 km WSW of Ferndale, CaliforniaTue, Sep 2, 7:06 PM PDT · 16833 days ago · 18 km deep · 61 km away
29. 2.132 km W of Ferndale, CaliforniaTue, Sep 2, 8:34 PM PDT · 16832 days ago · 25 km deep · 40 km away
30. 2.559 km WSW of Ferndale, CaliforniaTue, Sep 2, 9:38 PM PDT · 16832 days ago · 19 km deep · 71 km away
31. 1.831 km SSW of Ferndale, CaliforniaWed, Sep 3, 4:11 AM PDT · 16832 days ago · 36 km deep · 69 km away
32. 1.944 km SW of Ferndale, CaliforniaWed, Sep 3, 5:58 PM PDT · 16832 days ago · 25 km deep · 71 km away
33. 1.838 km SW of Ferndale, CaliforniaThu, Sep 4, 8:49 AM PDT · 16831 days ago · 26 km deep · 70 km away
34. 1.64 km ESE of Cutten, CaliforniaThu, Sep 4, 10:11 PM PDT · 16830 days ago · 24 km deep · 44 km away
35. 1.736 km SW of Scotia, CaliforniaThu, Sep 4, 10:19 PM PDT · 16830 days ago · 25 km deep · 78 km away
36. 3.031 km SW of Scotia, CaliforniaFri, Sep 5, 5:55 AM PDT · 16830 days ago · 18 km deep · 74 km away
37. 2.092 km W of Ferndale, CaliforniaFri, Sep 5, 2:52 PM PDT · 16830 days ago · 5 km deep · 86 km away
38. 2.327 km W of Trinidad, CaliforniaFri, Sep 5, 3:42 PM PDT · 16830 days ago · 0 km deep · 12 km away
39. 2.894 km W of Big Lagoon, CaliforniaMon, Sep 8, 12:43 PM PDT · 16827 days ago · 4 km deep · 70 km away
40. 1.921 km WSW of Ferndale, CaliforniaMon, Sep 8, 2:44 PM PDT · 16827 days ago · 14 km deep · 49 km away
41. 2.019 km SW of Ferndale, CaliforniaMon, Sep 8, 2:46 PM PDT · 16827 days ago · 17 km deep · 53 km away
42. 1.712 km WNW of Fields Landing, CaliforniaWed, Sep 10, 8:26 PM PDT · 16824 days ago · 15 km deep · 25 km away
43. 1.613 km SW of Scotia, CaliforniaThu, Sep 11, 4:56 PM PDT · 16824 days ago · 24 km deep · 69 km away
44. 1.756 km W of Ferndale, CaliforniaThu, Sep 11, 10:27 PM PDT · 16823 days ago · 5 km deep · 48 km away
45. 2.67 km N of Trinity Village, CaliforniaFri, Sep 12, 9:41 AM PDT · 16823 days ago · 21 km deep · 88 km away
46. 1.928 km SSW of Ferndale, CaliforniaFri, Sep 12, 8:27 PM PDT · 16822 days ago · 11 km deep · 68 km away
47. 2.028 km SW of Scotia, CaliforniaFri, Sep 12, 8:29 PM PDT · 16822 days ago · 10 km deep · 71 km away
48. 2.328 km SW of Scotia, CaliforniaSat, Sep 13, 2:09 AM PDT · 16822 days ago · 8 km deep · 73 km away
49. 1.953 km W of Indianola, CaliforniaSat, Sep 13, 9:23 AM PDT · 16822 days ago · 4 km deep · 32 km away
50. 1.664 km WSW of Ferndale, CaliforniaSun, Sep 14, 1:37 AM PDT · 16821 days ago · 5 km deep · 70 km away
51. 3.010 km WSW of Ferndale, CaliforniaMon, Sep 15, 6:29 AM PDT · 16820 days ago · 16 km deep · 47 km away
52. 1.99 km WSW of Ferndale, CaliforniaMon, Sep 15, 7:31 AM PDT · 16820 days ago · 16 km deep · 48 km away
53. 2.948 km WNW of Samoa, CaliforniaTue, Sep 16, 12:43 AM PDT · 16819 days ago · 19 km deep · 16 km away
54. 1.737 km SW of Scotia, CaliforniaTue, Sep 16, 7:28 AM PDT · 16819 days ago · 26 km deep · 77 km away
55. 1.723 km WNW of Ferndale, CaliforniaTue, Sep 16, 3:31 PM PDT · 16819 days ago · 22 km deep · 32 km away
56. 1.718 km SSW of Ferndale, CaliforniaWed, Sep 17, 8:30 AM PDT · 16818 days ago · 16 km deep · 61 km away
57. 1.528 km NW of Shelter Cove, CaliforniaThu, Sep 18, 3:15 AM PDT · 16817 days ago · 0 km deep · 84 km away
58. 2.423 km WNW of Indianola, CaliforniaFri, Sep 19, 1:12 AM PDT · 16816 days ago · 25 km deep · 24 km away
59. 2.631 km NW of Shelter Cove, CaliforniaFri, Sep 19, 5:07 AM PDT · 16816 days ago · 4 km deep · 83 km away
60. 3.25 km SE of Big Lagoon, CaliforniaFri, Sep 19, 8:11 AM PDT · 16816 days ago · 29 km deep · 45 km away

The first 60 of 109.

Before

1. 2.036 km WSW of Ferndale, CaliforniaMon, Aug 18, 10:48 AM PDT · 16848 days ago · 26 km deep · 52 km away
2. 1.644 km WSW of Ferndale, CaliforniaSun, Aug 17, 1:25 PM PDT · 16849 days ago · 11 km deep · 61 km away
3. 1.617 km W of Samoa, CaliforniaSat, Aug 16, 4:09 AM PDT · 16850 days ago · 24 km deep · 21 km away
4. 2.019 km ENE of Hydesville, CaliforniaFri, Aug 15, 12:53 PM PDT · 16851 days ago · 21 km deep · 70 km away
5. 2.835 km SW of Ferndale, CaliforniaFri, Aug 15, 5:56 AM PDT · 16851 days ago · 23 km deep · 67 km away
6. 1.726 km SW of Ferndale, CaliforniaFri, Aug 15, 5:15 AM PDT · 16851 days ago · 17 km deep · 61 km away
7. 1.616 km W of Hyampom, CaliforniaFri, Aug 15, 3:01 AM PDT · 16851 days ago · 25 km deep · 85 km away
8. 2.310 km S of Ferndale, CaliforniaWed, Aug 13, 1:50 PM PDT · 16853 days ago · 18 km deep · 57 km away
9. 1.840 km SW of Ferndale, CaliforniaWed, Aug 13, 1:34 PM PDT · 16853 days ago · 16 km deep · 69 km away
10. 1.743 km SW of Ferndale, CaliforniaMon, Aug 11, 6:18 PM PDT · 16855 days ago · 30 km deep · 71 km away
11. 1.962 km W of Ferndale, CaliforniaMon, Aug 11, 4:11 PM PDT · 16855 days ago · 13 km deep · 52 km away
12. 2.331 km WNW of Indianola, CaliforniaMon, Aug 11, 5:29 AM PDT · 16855 days ago · 26 km deep · 18 km away
13. 1.553 km SW of Ferndale, CaliforniaSat, Aug 9, 7:00 AM PDT · 16857 days ago · 17 km deep · 73 km away
14. 2.66 km S of Scotia, CaliforniaSat, Aug 9, 3:24 AM PDT · 16857 days ago · 23 km deep · 70 km away
15. 1.910 km S of Ferndale, CaliforniaSat, Aug 9, 2:42 AM PDT · 16857 days ago · 18 km deep · 56 km away
16. 2.210 km S of Ferndale, CaliforniaSat, Aug 9, 1:22 AM PDT · 16857 days ago · 18 km deep · 56 km away
17. 1.513 km W of Ferndale, CaliforniaFri, Aug 8, 10:51 PM PDT · 16857 days ago · 20 km deep · 42 km away
18. 1.524 km WSW of Ferndale, CaliforniaFri, Aug 8, 10:34 PM PDT · 16857 days ago · 20 km deep · 54 km away
19. 1.721 km WSW of Ferndale, CaliforniaFri, Aug 8, 8:32 AM PDT · 16858 days ago · 22 km deep · 51 km away
20. 3.140 km SW of Ferndale, CaliforniaFri, Aug 8, 6:57 AM PDT · 16858 days ago · 21 km deep · 69 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1055144. Read Sun, Oct 4, 2026, 1:48 PM UTC.