M1.6 earthquake 12km ENE of Hydesville, CA

Magnitude

1.6 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Fri, Sep 10, 2021, 4:08 AM PDT

UTC

2021-09-10 11:08:15 UTC

Depth

25.4 km (15.8 mi), shallow

Epicenter

40.604° N, 123.984° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 0.6 km in depth

Magnitude uncertainty

±0.16

Depth from

From location

Station coverage gap

81°

Stations used

23

• Hydesville, CaliforniaPopulation 1,237. Forecast11 kmENE
• Fortuna, CaliforniaPopulation 12,000. Forecast15 kmE
• Chico, CaliforniaPopulation 121,345. Forecast207 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast887 kmNNW

After

1. 2.48km WSW of Petrolia, CAFri, Sep 10, 10:06 AM PDT · 1850 days ago · 29 km deep · 47 km away
2. 2.433km WNW of Petrolia, CAFri, Sep 10, 8:00 PM PDT · 1850 days ago · 22 km deep · 63 km away
3. 2.422km N of Laytonville, CASat, Sep 11, 7:25 AM PDT · 1849 days ago · 6 km deep · 89 km away · felt by 1
4. 2.58km SW of Petrolia, CASun, Sep 12, 6:54 AM PDT · 1849 days ago · 31 km deep · 48 km away
5. 2.325km WSW of Petrolia, CASun, Sep 12, 7:20 PM PDT · 1848 days ago · 21 km deep · 63 km away · felt by 1
6. 1.612km SE of Petrolia, CATue, Sep 14, 12:13 AM PDT · 1847 days ago · 11 km deep · 43 km away
7. 2.68km WSW of Petrolia, CAThu, Sep 16, 1:37 AM PDT · 1845 days ago · 30 km deep · 47 km away · felt by 1
8. 3.06km SSW of Petrolia, CAFri, Sep 17, 9:39 PM PDT · 1843 days ago · 20 km deep · 46 km away · felt by 7
9. 2.558km W of Petrolia, CATue, Sep 21, 10:19 AM PDT · 1839 days ago · 6 km deep · 87 km away
10. 2.359km W of Petrolia, CATue, Sep 21, 10:20 AM PDT · 1839 days ago · 11 km deep · 90 km away
11. 2.08km WSW of Petrolia, CATue, Sep 21, 5:02 PM PDT · 1839 days ago · 29 km deep · 47 km away
12. 2.510km W of Petrolia, CATue, Sep 21, 5:08 PM PDT · 1839 days ago · 28 km deep · 48 km away
13. 2.517km WSW of Petrolia, CAThu, Sep 23, 12:46 AM PDT · 1838 days ago · 21 km deep · 54 km away
14. 2.57km WSW of Petrolia, CAFri, Sep 24, 10:31 AM PDT · 1836 days ago · 21 km deep · 47 km away
15. 2.412km SE of Weitchpec, CASat, Sep 25, 1:54 AM PDT · 1836 days ago · 37 km deep · 66 km away
16. 2.873km W of Ferndale, CASat, Sep 25, 1:18 PM PDT · 1835 days ago · 7 km deep · 97 km away · felt by 3
17. 2.021km WSW of Petrolia, CASat, Sep 25, 7:06 PM PDT · 1835 days ago · 20 km deep · 58 km away
18. 3.613km SE of Petrolia, CASun, Sep 26, 1:51 AM PDT · 1835 days ago · 12 km deep · 42 km away · felt by 12
19. 1.917km W of Humboldt Hill, CASun, Sep 26, 8:38 AM PDT · 1834 days ago · 21 km deep · 37 km away
20. 2.658km W of Petrolia, CASun, Sep 26, 12:54 PM PDT · 1834 days ago · 19 km deep · 89 km away
21. 2.713km SE of Petrolia, CAMon, Sep 27, 3:27 PM PDT · 1833 days ago · 12 km deep · 41 km away
22. 2.318km E of Willow Creek, CATue, Sep 28, 9:05 AM PDT · 1832 days ago · 25 km deep · 61 km away
23. 1.926km ESE of Rio Dell, CAWed, Sep 29, 8:49 AM PDT · 1831 days ago · 20 km deep · 24 km away
24. 2.87km WSW of Petrolia, CAWed, Sep 29, 11:37 PM PDT · 1831 days ago · 30 km deep · 46 km away · felt by 1
25. 2.59km SW of Petrolia, CASat, Oct 2, 1:10 AM PDT · 1829 days ago · 33 km deep · 49 km away
26. 2.320km ENE of Willow Creek, CAMon, Oct 4, 7:35 PM PDT · 1826 days ago · 36 km deep · 66 km away
27. 2.018km ESE of Willow Creek, CAMon, Oct 4, 9:05 PM PDT · 1826 days ago · 23 km deep · 56 km away
28. 3.264km WNW of Petrolia, CATue, Oct 5, 8:54 AM PDT · 1825 days ago · 11 km deep · 90 km away · felt by 1
29. 2.414km SW of Ferndale, CATue, Oct 5, 11:21 AM PDT · 1825 days ago · 23 km deep · 37 km away
30. 2.018km E of Rio Dell, CAWed, Oct 6, 7:40 PM PDT · 1824 days ago · 20 km deep · 15 km away
31. 1.818km E of Rio Dell, CAThu, Oct 7, 8:37 AM PDT · 1823 days ago · 20 km deep · 16 km away
32. 2.856km W of Ferndale, CAThu, Oct 7, 6:08 PM PDT · 1823 days ago · 24 km deep · 79 km away
33. 2.757km W of Ferndale, CAFri, Oct 8, 5:06 AM PDT · 1823 days ago · 9 km deep · 81 km away
34. 1.612km SE of Petrolia, CAFri, Oct 8, 1:05 PM PDT · 1822 days ago · 11 km deep · 43 km away
35. 2.17km SSE of Pine Hills, CAFri, Oct 8, 2:39 PM PDT · 1822 days ago · 25 km deep · 14 km away
36. 2.856km W of Ferndale, CAFri, Oct 8, 8:49 PM PDT · 1822 days ago · 20 km deep · 79 km away
37. 3.818km WSW of Petrolia, CATue, Oct 12, 4:29 AM PDT · 1819 days ago · 21 km deep · 56 km away · felt by 11
38. 1.713km E of Hydesville, CAThu, Oct 14, 5:45 AM PDT · 1817 days ago · 24 km deep · 5 km away
39. 2.08km SSE of Redway, CAFri, Oct 15, 11:18 PM PDT · 1815 days ago · 17 km deep · 64 km away
40. 1.98km SSE of Redway, CAFri, Oct 15, 11:19 PM PDT · 1815 days ago · 17 km deep · 64 km away
41. 1.65km NW of Redway, CASun, Oct 17, 4:25 AM PDT · 1814 days ago · 23 km deep · 52 km away
42. 1.74km NNW of Ferndale, CASun, Oct 17, 7:20 AM PDT · 1813 days ago · 17 km deep · 25 km away
43. 1.719km WNW of Petrolia, CAMon, Oct 18, 9:54 PM PDT · 1812 days ago · 18 km deep · 48 km away
44. 2.656km W of Ferndale, CAWed, Oct 20, 12:27 PM PDT · 1810 days ago · 25 km deep · 80 km away
45. 2.212km WSW of Petrolia, CAWed, Oct 20, 7:43 PM PDT · 1810 days ago · 9 km deep · 50 km away
46. 2.923km W of Petrolia, CAThu, Oct 21, 6:10 AM PDT · 1810 days ago · 20 km deep · 59 km away · felt by 1
47. 2.426km WNW of Petrolia, CAFri, Oct 22, 9:40 PM PDT · 1808 days ago · 29 km deep · 55 km away
48. 1.913km ENE of Hydesville, CAWed, Oct 27, 8:17 PM PDT · 1803 days ago · 21 km deep · 2 km away
49. 2.519km W of Petrolia, CASat, Oct 30, 4:24 PM PDT · 1800 days ago · 19 km deep · 52 km away
50. 2.58km E of Willow Creek, CATue, Nov 2, 8:03 AM PDT · 1797 days ago · 26 km deep · 54 km away
51. 4.45km NNE of Petrolia, CATue, Nov 2, 5:24 PM PDT · 1797 days ago · 30 km deep · 35 km away · felt by 114 · tsunami flag
52. 2.34km NNE of Petrolia, CATue, Nov 2, 5:27 PM PDT · 1797 days ago · 30 km deep · 36 km away
53. 2.66km NNE of Petrolia, CATue, Nov 2, 5:39 PM PDT · 1797 days ago · 28 km deep · 34 km away · felt by 2
54. 2.56km N of Petrolia, CATue, Nov 2, 5:41 PM PDT · 1797 days ago · 29 km deep · 36 km away
55. 3.06km NNE of Petrolia, CATue, Nov 2, 6:33 PM PDT · 1797 days ago · 30 km deep · 35 km away · felt by 10
56. 2.53km N of Petrolia, CATue, Nov 2, 9:55 PM PDT · 1797 days ago · 28 km deep · 37 km away
57. 2.028km NE of Redway, CATue, Nov 2, 9:59 PM PDT · 1797 days ago · 27 km deep · 47 km away
58. 1.75km NNE of Petrolia, CATue, Nov 2, 10:10 PM PDT · 1797 days ago · 28 km deep · 35 km away
59. 2.45km NNW of Petrolia, CATue, Nov 2, 10:58 PM PDT · 1797 days ago · 29 km deep · 38 km away
60. 4.119km NW of Covelo, CAWed, Nov 3, 5:24 PM PDT · 1796 days ago · 7 km deep · 92 km away · felt by 21

The first 60 of 63.

Before

1. 2.28km WSW of Petrolia, CAThu, Sep 9, 5:03 PM PDT · 1851 days ago · 31 km deep · 48 km away
2. 4.510km SW of Petrolia, CAThu, Sep 9, 2:57 PM PDT · 1851 days ago · 33 km deep · 50 km away · felt by 39
3. 1.59km WSW of Petrolia, CAThu, Sep 9, 10:39 AM PDT · 1851 days ago · 21 km deep · 48 km away
4. 2.536km W of Petrolia, CATue, Sep 7, 7:35 AM PDT · 1853 days ago · 18 km deep · 68 km away
5. 2.58km WSW of Petrolia, CASun, Sep 5, 4:22 PM PDT · 1855 days ago · 29 km deep · 48 km away
6. 1.96km WSW of Petrolia, CASat, Sep 4, 8:10 AM PDT · 1856 days ago · 28 km deep · 45 km away
7. 1.86km W of Petrolia, CASat, Sep 4, 7:15 AM PDT · 1856 days ago · 28 km deep · 45 km away
8. 2.37km W of Petrolia, CAFri, Sep 3, 3:18 PM PDT · 1857 days ago · 28 km deep · 46 km away
9. 2.315km W of Weaverville, CAFri, Sep 3, 6:26 AM PDT · 1858 days ago · 39 km deep · 74 km away
10. 2.650km W of Petrolia, CAFri, Sep 3, 3:25 AM PDT · 1858 days ago · 11 km deep · 79 km away
11. 2.48km W of Petrolia, CAThu, Sep 2, 4:59 PM PDT · 1858 days ago · 17 km deep · 45 km away
12. 1.819km NNW of Laytonville, CAThu, Sep 2, 8:17 AM PDT · 1858 days ago · 7 km deep · 92 km away
13. 3.511km WSW of Petrolia, CATue, Aug 31, 1:01 AM PDT · 1861 days ago · 28 km deep · 51 km away
14. 4.011km WSW of Petrolia, CATue, Aug 31, 1:01 AM PDT · 1861 days ago · 32 km deep · 50 km away · felt by 8
15. 2.422km NW of Petrolia, CAMon, Aug 30, 12:17 AM PDT · 1862 days ago · 19 km deep · 45 km away
16. 2.440km N of Covelo, CASat, Aug 28, 9:46 PM PDT · 1863 days ago · 37 km deep · 87 km away
17. 2.432km W of Hayfork, CASat, Aug 28, 8:17 PM PDT · 1863 days ago · 24 km deep · 36 km away
18. 1.712km SSW of Ferndale, CAThu, Aug 26, 12:23 PM PDT · 1865 days ago · 18 km deep · 32 km away
19. 1.712km SSW of Ferndale, CAThu, Aug 26, 11:32 AM PDT · 1865 days ago · 18 km deep · 32 km away
20. 2.44km W of Petrolia, CAWed, Aug 25, 1:42 AM PDT · 1867 days ago · 27 km deep · 42 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc73623061. Read Mon, Oct 5, 2026, 1:28 AM UTC.