M3.1 earthquake 73 km WNW of Samoa, California

Magnitude

3.1 (Md, duration), minor

Magnitude from

Northern California Seismic System

Local time

Sun, Jul 29, 1979, 3:57 PM PDT

UTC

1979-07-29 22:57:33 UTC

Depth

-0.1 km (-0.1 mi), shallow

Epicenter

40.982° N, 125.033° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 2.0 km horizontally, 2.4 km in depth

Depth from

From location

Station coverage gap

305°, poorly surrounded by stations

Stations used

14

• Manila, CaliforniaPopulation 784. Forecast75 kmWNW
• Eureka, CaliforniaPopulation 27,017. Forecast76 kmWNW
• Chico, CaliforniaPopulation 121,345. Forecast304 kmWNW

After

1. 2.019 km WSW of Ferndale, CaliforniaMon, Jul 30, 11:33 AM PDT · 17230 days ago · 21 km deep · 73 km away
2. 1.627 km SSW of Ferndale, CaliforniaMon, Jul 30, 8:31 PM PDT · 17229 days ago · 26 km deep · 89 km away
3. 1.67 km W of Rio Dell, CaliforniaWed, Aug 1, 1:09 AM PDT · 17228 days ago · 19 km deep · 89 km away
4. 4.769 km W of Indianola, CaliforniaWed, Aug 1, 3:50 AM PDT · 17228 days ago · 44 km deep · 24 km away
5. 3.053 km WNW of Indianola, CaliforniaWed, Aug 1, 4:33 AM PDT · 17228 days ago · -1 km deep · 23 km away
6. 2.26 km W of Rio Dell, CaliforniaWed, Aug 1, 5:53 PM PDT · 17227 days ago · 19 km deep · 89 km away
7. 1.510 km NE of Hydesville, CaliforniaThu, Aug 2, 5:35 AM PDT · 17227 days ago · 21 km deep · 97 km away
8. 1.53 km S of Humboldt Hill, CaliforniaThu, Aug 2, 5:42 AM PDT · 17227 days ago · 17 km deep · 78 km away
9. 2.37 km NNE of Hydesville, CaliforniaSat, Aug 4, 3:20 AM PDT · 17225 days ago · 18 km deep · 93 km away
10. 2.113 km WNW of Fields Landing, CaliforniaSat, Aug 4, 6:12 AM PDT · 17225 days ago · 24 km deep · 61 km away
11. 3.841 km SW of Ferndale, CaliforniaSat, Aug 4, 7:48 AM PDT · 17225 days ago · 26 km deep · 75 km away
12. 1.648 km SW of Ferndale, CaliforniaSat, Aug 4, 7:50 AM PDT · 17225 days ago · 21 km deep · 77 km away
13. 2.240 km SW of Ferndale, CaliforniaSat, Aug 4, 8:12 AM PDT · 17225 days ago · 27 km deep · 77 km away
14. 1.834 km SW of Ferndale, CaliforniaSat, Aug 4, 8:16 AM PDT · 17225 days ago · 28 km deep · 76 km away
15. 1.834 km SW of Ferndale, CaliforniaSat, Aug 4, 8:27 AM PDT · 17225 days ago · 23 km deep · 77 km away
16. 1.734 km WSW of Ferndale, CaliforniaSat, Aug 4, 7:00 PM PDT · 17224 days ago · 16 km deep · 67 km away
17. 3.494 km W of Ferndale, CaliforniaSun, Aug 5, 1:32 AM PDT · 17224 days ago · 84 km deep · 45 km away
18. 1.829 km SW of Ferndale, CaliforniaSun, Aug 5, 8:34 AM PDT · 17224 days ago · 39 km deep · 81 km away
19. 2.8145 km W of Ferndale, CaliforniaSun, Aug 5, 1:42 PM PDT · 17224 days ago · 4 km deep · 94 km away
20. 1.729 km WSW of Ferndale, CaliforniaSun, Aug 5, 6:18 PM PDT · 17223 days ago · 23 km deep · 63 km away
21. 2.275 km WSW of Ferndale, CaliforniaMon, Aug 6, 3:09 PM PDT · 17222 days ago · 6 km deep · 73 km away
22. 4.236 km SW of Ferndale, CaliforniaWed, Aug 8, 3:24 AM PDT · 17221 days ago · 25 km deep · 85 km away
23. 2.137 km SW of Ferndale, CaliforniaWed, Aug 8, 3:33 AM PDT · 17221 days ago · 29 km deep · 88 km away
24. 3.138 km SW of Ferndale, CaliforniaFri, Aug 10, 4:40 AM PDT · 17219 days ago · 24 km deep · 85 km away
25. 2.672 km W of Ferndale, CaliforniaFri, Aug 10, 7:47 PM PDT · 17218 days ago · 1 km deep · 54 km away
26. 1.644 km SW of Ferndale, CaliforniaFri, Aug 10, 10:41 PM PDT · 17218 days ago · 6 km deep · 81 km away
27. 1.52 km SSW of Scotia, CaliforniaSun, Aug 12, 7:09 AM PDT · 17217 days ago · 23 km deep · 97 km away
28. 1.721 km WNW of Manila, CaliforniaSun, Aug 12, 7:36 AM PDT · 17217 days ago · 9 km deep · 55 km away
29. 2.924 km W of Big Lagoon, CaliforniaSun, Aug 12, 8:12 AM PDT · 17217 days ago · 19 km deep · 54 km away
30. 2.048 km W of Trinidad, CaliforniaThu, Aug 16, 4:39 AM PDT · 17213 days ago · 5 km deep · 32 km away
31. 1.618 km WSW of Ferndale, CaliforniaFri, Aug 17, 1:25 AM PDT · 17212 days ago · 25 km deep · 74 km away
32. 1.6near the coast of Northern CaliforniaFri, Aug 17, 3:15 AM PDT · 17212 days ago · 15 km deep · 98 km away
33. 1.851 km WSW of Ferndale, CaliforniaFri, Aug 17, 4:29 PM PDT · 17211 days ago · 27 km deep · 74 km away
34. 1.938 km WNW of Samoa, CaliforniaSat, Aug 18, 1:16 PM PDT · 17211 days ago · 24 km deep · 35 km away
35. 1.857 km W of Ferndale, CaliforniaSun, Aug 19, 10:41 AM PDT · 17210 days ago · 14 km deep · 39 km away
36. 1.64 km NNE of Blue Lake, CaliforniaMon, Aug 20, 10:33 AM PDT · 17209 days ago · 26 km deep · 90 km away
37. 1.917 km W of Trinidad, CaliforniaFri, Aug 24, 12:04 AM PDT · 17205 days ago · 14 km deep · 58 km away
38. 1.775 km WSW of Ferndale, CaliforniaFri, Aug 24, 6:47 AM PDT · 17205 days ago · 4 km deep · 65 km away
39. 1.616 km ESE of Pine Hills, CaliforniaSun, Aug 26, 10:02 AM PDT · 17203 days ago · 21 km deep · 96 km away
40. 1.729 km SSW of Ferndale, CaliforniaSun, Aug 26, 10:29 AM PDT · 17203 days ago · 18 km deep · 85 km away
41. 1.86 km SSW of Scotia, CaliforniaSun, Aug 26, 3:50 PM PDT · 17202 days ago · 28 km deep · 99 km away
42. 2.136 km WSW of Ferndale, CaliforniaMon, Aug 27, 7:15 PM PDT · 17201 days ago · 18 km deep · 62 km away
43. 1.714 km WNW of Ferndale, CaliforniaWed, Aug 29, 2:59 AM PDT · 17200 days ago · 6 km deep · 65 km away
44. 1.732 km W of Ferndale, CaliforniaSat, Sep 1, 3:29 AM PDT · 17197 days ago · 22 km deep · 59 km away
45. 1.911 km WSW of Ferndale, CaliforniaSat, Sep 1, 11:20 AM PDT · 17197 days ago · 24 km deep · 75 km away
46. 2.5near the coast of Northern CaliforniaSun, Sep 2, 2:13 AM PDT · 17196 days ago · 18 km deep · 74 km away
47. 1.924 km WSW of Ferndale, CaliforniaSun, Sep 2, 7:46 AM PDT · 17196 days ago · 23 km deep · 70 km away
48. 2.070 km W of Indianola, CaliforniaSun, Sep 2, 8:58 AM PDT · 17196 days ago · 6 km deep · 23 km away
49. 3.0off the coast of Northern CaliforniaSun, Sep 2, 9:24 PM PDT · 17195 days ago · 4 km deep · 83 km away
50. 1.640 km SW of Ferndale, CaliforniaTue, Sep 4, 2:53 AM PDT · 17194 days ago · 20 km deep · 82 km away
51. 4.291 km WNW of Big Lagoon, CaliforniaWed, Sep 5, 2:42 AM PDT · 17193 days ago · 4 km deep · 45 km away
52. 2.471 km W of Ferndale, CaliforniaSun, Sep 9, 12:01 PM PDT · 17189 days ago · 2 km deep · 55 km away
53. 1.824 km WSW of Ferndale, CaliforniaSun, Sep 9, 4:50 PM PDT · 17188 days ago · 22 km deep · 73 km away
54. 1.527 km SW of Scotia, CaliforniaMon, Sep 10, 4:55 AM PDT · 17188 days ago · 6 km deep · 93 km away
55. 1.937 km SW of Ferndale, CaliforniaMon, Sep 10, 5:50 AM PDT · 17188 days ago · 21 km deep · 86 km away
56. 2.567 km WNW of Samoa, CaliforniaWed, Sep 12, 12:12 AM PDT · 17186 days ago · 36 km deep · 6 km away
57. 1.529 km SW of Ferndale, CaliforniaFri, Sep 14, 4:42 PM PDT · 17183 days ago · 27 km deep · 83 km away
58. 2.46 km ESE of Indianola, CaliforniaSat, Sep 15, 5:18 PM PDT · 17182 days ago · 25 km deep · 89 km away
59. 2.110 km WSW of Rio Dell, CaliforniaSat, Sep 15, 7:32 PM PDT · 17182 days ago · 17 km deep · 88 km away
60. 2.672 km WNW of Indianola, CaliforniaSun, Sep 16, 1:51 PM PDT · 17182 days ago · 12 km deep · 17 km away

The first 60 of 73.

Before

1. 1.975 km W of Ferndale, CaliforniaSun, Jul 29, 8:48 AM PDT · 17231 days ago · 5 km deep · 47 km away
2. 1.68 km SE of Blue Lake, CaliforniaSat, Jul 28, 1:53 PM PDT · 17232 days ago · -1 km deep · 95 km away
3. 1.835 km SSW of Ferndale, CaliforniaThu, Jul 26, 11:57 PM PDT · 17233 days ago · 10 km deep · 91 km away
4. 2.43 km WSW of Indianola, CaliforniaThu, Jul 26, 10:36 AM PDT · 17234 days ago · 8 km deep · 72 km away
5. 1.73 km WSW of Indianola, CaliforniaThu, Jul 26, 10:35 AM PDT · 17234 days ago · 8 km deep · 73 km away
6. 2.226 km WSW of Ferndale, CaliforniaThu, Jul 26, 1:54 AM PDT · 17234 days ago · 23 km deep · 72 km away
7. 3.637 km SW of Ferndale, CaliforniaMon, Jul 23, 1:36 PM PDT · 17237 days ago · 21 km deep · 84 km away
8. 1.524 km WNW of Samoa, CaliforniaMon, Jul 23, 2:48 AM PDT · 17237 days ago · 20 km deep · 51 km away
9. 1.73 km SW of Loleta, CaliforniaSun, Jul 22, 9:01 PM PDT · 17237 days ago · 20 km deep · 77 km away
10. 1.615 km ESE of Indianola, CaliforniaSun, Jul 22, 2:48 PM PDT · 17238 days ago · 24 km deep · 97 km away
11. 1.858 km W of Ferndale, CaliforniaSun, Jul 22, 1:12 PM PDT · 17238 days ago · 16 km deep · 38 km away
12. 1.7Northern CaliforniaSun, Jul 22, 7:02 AM PDT · 17238 days ago · 20 km deep · 91 km away
13. 1.761 km W of Ferndale, CaliforniaSun, Jul 22, 5:04 AM PDT · 17238 days ago · 5 km deep · 43 km away
14. 1.625 km SW of Scotia, CaliforniaSat, Jul 21, 10:45 PM PDT · 17238 days ago · 16 km deep · 92 km away
15. 1.965 km WSW of Ferndale, CaliforniaSat, Jul 21, 3:24 PM PDT · 17238 days ago · 6 km deep · 67 km away
16. 3.063 km WSW of Ferndale, CaliforniaSat, Jul 21, 3:04 PM PDT · 17238 days ago · 29 km deep · 67 km away
17. 2.542 km SW of Ferndale, CaliforniaFri, Jul 20, 10:19 AM PDT · 17240 days ago · 11 km deep · 84 km away
18. 1.633 km SSW of Ferndale, CaliforniaWed, Jul 18, 4:52 PM PDT · 17241 days ago · 19 km deep · 90 km away
19. 1.933 km WSW of Ferndale, CaliforniaWed, Jul 18, 12:49 PM PDT · 17242 days ago · 26 km deep · 71 km away
20. 1.837 km WSW of Ferndale, CaliforniaTue, Jul 17, 5:42 PM PDT · 17242 days ago · 24 km deep · 63 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1046827. Read Thu, Oct 1, 2026, 9:29 AM UTC.