M1.9 earthquake 38 km WNW of Samoa, California

Magnitude

1.9 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Sat, Aug 18, 1979, 1:16 PM PDT

UTC

1979-08-18 20:16:22 UTC

Depth

24.0 km (14.9 mi), shallow

Epicenter

40.938° N, 124.615° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 11.6 km horizontally, 15.3 km in depth

Depth from

From location

Station coverage gap

311°, poorly surrounded by stations

Stations used

6

• Manila, CaliforniaPopulation 784. Forecast39 kmWNW
• Eureka, CaliforniaPopulation 27,017. Forecast41 kmWNW
• Chico, CaliforniaPopulation 121,345. Forecast271 kmWNW

After

1. 1.727 km SSW of Scotia, CaliforniaSun, Aug 19, 6:13 AM PDT · 17210 days ago · 20 km deep · 81 km away
2. 1.857 km W of Ferndale, CaliforniaSun, Aug 19, 10:41 AM PDT · 17209 days ago · 14 km deep · 42 km away
3. 1.64 km NNE of Blue Lake, CaliforniaMon, Aug 20, 10:33 AM PDT · 17208 days ago · 26 km deep · 54 km away
4. 2.414 km S of Scotia, CaliforniaTue, Aug 21, 9:45 AM PDT · 17207 days ago · 29 km deep · 76 km away
5. 1.813 km SSW of Scotia, CaliforniaTue, Aug 21, 10:02 AM PDT · 17207 days ago · 29 km deep · 76 km away
6. 1.625 km WSW of Weott, CaliforniaThu, Aug 23, 11:09 AM PDT · 17205 days ago · 7 km deep · 82 km away
7. 1.917 km W of Trinidad, CaliforniaFri, Aug 24, 12:04 AM PDT · 17205 days ago · 14 km deep · 27 km away
8. 2.09 km NE of Redcrest, CaliforniaFri, Aug 24, 12:24 AM PDT · 17205 days ago · 19 km deep · 82 km away
9. 1.775 km WSW of Ferndale, CaliforniaFri, Aug 24, 6:47 AM PDT · 17205 days ago · 4 km deep · 74 km away
10. 1.616 km ESE of Pine Hills, CaliforniaSun, Aug 26, 10:02 AM PDT · 17202 days ago · 21 km deep · 62 km away
11. 1.729 km SSW of Ferndale, CaliforniaSun, Aug 26, 10:29 AM PDT · 17202 days ago · 18 km deep · 66 km away
12. 1.86 km SSW of Scotia, CaliforniaSun, Aug 26, 3:50 PM PDT · 17202 days ago · 28 km deep · 71 km away
13. 2.136 km WSW of Ferndale, CaliforniaMon, Aug 27, 7:15 PM PDT · 17201 days ago · 18 km deep · 50 km away
14. 1.714 km WNW of Ferndale, CaliforniaWed, Aug 29, 2:59 AM PDT · 17200 days ago · 6 km deep · 39 km away
15. 1.732 km W of Ferndale, CaliforniaSat, Sep 1, 3:29 AM PDT · 17197 days ago · 22 km deep · 45 km away
16. 1.911 km WSW of Ferndale, CaliforniaSat, Sep 1, 11:20 AM PDT · 17196 days ago · 24 km deep · 51 km away
17. 2.5near the coast of Northern CaliforniaSun, Sep 2, 2:13 AM PDT · 17196 days ago · 18 km deep · 49 km away
18. 1.924 km WSW of Ferndale, CaliforniaSun, Sep 2, 7:46 AM PDT · 17196 days ago · 23 km deep · 51 km away
19. 2.070 km W of Indianola, CaliforniaSun, Sep 2, 8:58 AM PDT · 17195 days ago · 6 km deep · 42 km away
20. 1.640 km SW of Ferndale, CaliforniaTue, Sep 4, 2:53 AM PDT · 17194 days ago · 20 km deep · 69 km away
21. 4.291 km WNW of Big Lagoon, CaliforniaWed, Sep 5, 2:42 AM PDT · 17193 days ago · 4 km deep · 68 km away
22. 1.811 km E of Blue Lake, CaliforniaThu, Sep 6, 5:56 PM PDT · 17191 days ago · -1 km deep · 65 km away
23. 2.471 km W of Ferndale, CaliforniaSun, Sep 9, 12:01 PM PDT · 17188 days ago · 2 km deep · 65 km away
24. 1.824 km WSW of Ferndale, CaliforniaSun, Sep 9, 4:50 PM PDT · 17188 days ago · 22 km deep · 54 km away
25. 1.527 km SW of Scotia, CaliforniaMon, Sep 10, 4:55 AM PDT · 17188 days ago · 6 km deep · 71 km away
26. 1.937 km SW of Ferndale, CaliforniaMon, Sep 10, 5:50 AM PDT · 17188 days ago · 21 km deep · 70 km away
27. 2.567 km WNW of Samoa, CaliforniaWed, Sep 12, 12:12 AM PDT · 17186 days ago · 36 km deep · 30 km away
28. 1.529 km SW of Ferndale, CaliforniaFri, Sep 14, 4:42 PM PDT · 17183 days ago · 27 km deep · 65 km away
29. 2.46 km ESE of Indianola, CaliforniaSat, Sep 15, 5:18 PM PDT · 17182 days ago · 25 km deep · 54 km away
30. 2.110 km WSW of Rio Dell, CaliforniaSat, Sep 15, 7:32 PM PDT · 17182 days ago · 17 km deep · 60 km away
31. 2.672 km WNW of Indianola, CaliforniaSun, Sep 16, 1:51 PM PDT · 17181 days ago · 12 km deep · 40 km away
32. 2.687 km WNW of Samoa, CaliforniaTue, Sep 18, 5:46 PM PDT · 17179 days ago · 5 km deep · 49 km away
33. 1.789 km W of Big Lagoon, CaliforniaWed, Sep 19, 3:54 AM PDT · 17179 days ago · 4 km deep · 60 km away
34. 1.929 km SSW of Ferndale, CaliforniaFri, Sep 21, 3:35 AM PDT · 17177 days ago · 19 km deep · 66 km away
35. 1.852 km WSW of Ferndale, CaliforniaSat, Sep 22, 7:14 AM PDT · 17176 days ago · 15 km deep · 67 km away
36. 2.076 km WSW of Ferndale, CaliforniaSun, Sep 23, 9:11 PM PDT · 17174 days ago · 23 km deep · 77 km away
37. 1.633 km W of Ferndale, CaliforniaTue, Sep 25, 12:53 PM PDT · 17172 days ago · 21 km deep · 46 km away
38. 1.949 km WNW of Samoa, CaliforniaWed, Sep 26, 11:58 AM PDT · 17171 days ago · -1 km deep · 11 km away
39. 3.550 km WSW of Ferndale, CaliforniaThu, Sep 27, 12:54 AM PDT · 17171 days ago · 16 km deep · 68 km away
40. 1.520 km WSW of Weott, CaliforniaThu, Sep 27, 2:20 AM PDT · 17171 days ago · -1 km deep · 87 km away
41. 1.937 km WSW of Ferndale, CaliforniaThu, Sep 27, 8:09 AM PDT · 17171 days ago · 24 km deep · 54 km away
42. 1.68 km SE of Blue Lake, CaliforniaThu, Sep 27, 11:26 AM PDT · 17170 days ago · 1 km deep · 61 km away
43. 3.435 km SW of Ferndale, CaliforniaThu, Sep 27, 3:32 PM PDT · 17170 days ago · 24 km deep · 71 km away
44. 2.172 km WSW of Ferndale, CaliforniaThu, Sep 27, 8:16 PM PDT · 17170 days ago · 4 km deep · 75 km away
45. 2.316 km SSW of Ferndale, CaliforniaFri, Sep 28, 2:04 PM PDT · 17169 days ago · 26 km deep · 59 km away
46. 3.775 km W of Ferndale, CaliforniaFri, Sep 28, 7:22 PM PDT · 17169 days ago · 6 km deep · 68 km away
47. 1.920 km W of Ferndale, CaliforniaFri, Sep 28, 9:23 PM PDT · 17169 days ago · 21 km deep · 44 km away
48. 2.487 km WSW of Ferndale, CaliforniaSat, Sep 29, 7:59 PM PDT · 17168 days ago · 4 km deep · 95 km away
49. 2.3111 km W of Indianola, CaliforniaMon, Oct 1, 2:52 PM PDT · 17166 days ago · 4 km deep · 78 km away
50. 2.714 km WNW of Fields Landing, CaliforniaMon, Oct 1, 5:58 PM PDT · 17166 days ago · 24 km deep · 28 km away
51. 2.719 km W of Samoa, CaliforniaTue, Oct 2, 9:51 PM PDT · 17165 days ago · 19 km deep · 21 km away
52. 3.136 km SW of Ferndale, CaliforniaTue, Oct 2, 11:40 PM PDT · 17165 days ago · 24 km deep · 70 km away
53. 1.648 km SW of Ferndale, CaliforniaWed, Oct 3, 5:16 AM PDT · 17165 days ago · 24 km deep · 70 km away
54. 2.330 km SW of Scotia, CaliforniaWed, Oct 3, 8:45 AM PDT · 17165 days ago · 14 km deep · 76 km away
55. 2.187 km W of Ferndale, CaliforniaWed, Oct 3, 7:46 PM PDT · 17164 days ago · 5 km deep · 74 km away
56. 2.526 km SSW of Ferndale, CaliforniaFri, Oct 5, 1:21 AM PDT · 17163 days ago · 19 km deep · 65 km away
57. 2.399 km WSW of Ferndale, CaliforniaSat, Oct 6, 9:58 PM PDT · 17161 days ago · 4 km deep · 91 km away
58. 1.722 km WNW of Ferndale, CaliforniaSun, Oct 7, 6:21 AM PDT · 17161 days ago · 16 km deep · 33 km away
59. 2.2near the coast of Northern CaliforniaSun, Oct 7, 1:52 PM PDT · 17160 days ago · 5 km deep · 34 km away
60. 1.732 km W of Ferndale, CaliforniaSun, Oct 7, 5:41 PM PDT · 17160 days ago · 25 km deep · 43 km away

The first 60 of 82.

Before

1. 1.59 km NE of Redcrest, CaliforniaFri, Aug 17, 7:05 PM PDT · 17211 days ago · 19 km deep · 82 km away
2. 1.851 km WSW of Ferndale, CaliforniaFri, Aug 17, 4:29 PM PDT · 17211 days ago · 27 km deep · 68 km away
3. 1.6near the coast of Northern CaliforniaFri, Aug 17, 3:15 AM PDT · 17212 days ago · 15 km deep · 78 km away
4. 1.618 km WSW of Ferndale, CaliforniaFri, Aug 17, 1:25 AM PDT · 17212 days ago · 25 km deep · 52 km away
5. 2.048 km W of Trinidad, CaliforniaThu, Aug 16, 4:39 AM PDT · 17213 days ago · 5 km deep · 23 km away
6. 2.924 km W of Big Lagoon, CaliforniaSun, Aug 12, 8:12 AM PDT · 17217 days ago · 19 km deep · 29 km away
7. 1.721 km WNW of Manila, CaliforniaSun, Aug 12, 7:36 AM PDT · 17217 days ago · 9 km deep · 20 km away
8. 1.52 km SSW of Scotia, CaliforniaSun, Aug 12, 7:09 AM PDT · 17217 days ago · 23 km deep · 68 km away
9. 1.644 km SW of Ferndale, CaliforniaFri, Aug 10, 10:41 PM PDT · 17218 days ago · 6 km deep · 70 km away
10. 2.672 km W of Ferndale, CaliforniaFri, Aug 10, 7:47 PM PDT · 17218 days ago · 1 km deep · 64 km away
11. 3.138 km SW of Ferndale, CaliforniaFri, Aug 10, 4:40 AM PDT · 17219 days ago · 24 km deep · 70 km away
12. 2.137 km SW of Ferndale, CaliforniaWed, Aug 8, 3:33 AM PDT · 17221 days ago · 29 km deep · 71 km away
13. 4.236 km SW of Ferndale, CaliforniaWed, Aug 8, 3:24 AM PDT · 17221 days ago · 25 km deep · 70 km away
14. 2.275 km WSW of Ferndale, CaliforniaMon, Aug 6, 3:09 PM PDT · 17222 days ago · 6 km deep · 79 km away
15. 1.729 km WSW of Ferndale, CaliforniaSun, Aug 5, 6:18 PM PDT · 17223 days ago · 23 km deep · 46 km away
16. 1.93 km SSW of Willow Creek, CASun, Aug 5, 12:15 PM PDT · 17223 days ago · 21 km deep · 82 km away
17. 1.829 km SW of Ferndale, CaliforniaSun, Aug 5, 8:34 AM PDT · 17224 days ago · 39 km deep · 63 km away
18. 1.611 km W of Mad River, CaliforniaSun, Aug 5, 1:46 AM PDT · 17224 days ago · 3 km deep · 98 km away
19. 3.494 km W of Ferndale, CaliforniaSun, Aug 5, 1:32 AM PDT · 17224 days ago · 84 km deep · 70 km away
20. 1.734 km WSW of Ferndale, CaliforniaSat, Aug 4, 7:00 PM PDT · 17224 days ago · 16 km deep · 53 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1047310. Read Thu, Oct 1, 2026, 3:21 AM UTC.