M1.5 earthquake 6km NNE of Millville, CA

Magnitude

1.5 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Fri, Sep 24, 2021, 11:39 AM PDT

UTC

2021-09-24 18:39:43 UTC

Depth

12.8 km (7.9 mi), shallow

Epicenter

40.610° N, 122.157° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.5 km horizontally, 0.6 km in depth

Magnitude uncertainty

±0.26

Depth from

From location

Station coverage gap

66°

Stations used

9

• Millville, CaliforniaPopulation 727. Forecast7 kmNNE
• Shasta Lake, CaliforniaPopulation 10,159. Forecast20 kmESE
• Chico, CaliforniaPopulation 121,345. Forecast102 kmNNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast807 kmNNW

After

1. 2.24km ENE of Prattville, CASun, Sep 26, 12:44 AM PDT · 1834 days ago · 8 km deep · 98 km away
2. 2.021km WSW of Dunsmuir, CATue, Sep 28, 5:57 AM PDT · 1832 days ago · 21 km deep · 62 km away
3. 1.512km ESE of Viola, CAWed, Sep 29, 2:22 PM PDT · 1830 days ago · 3 km deep · 54 km away
4. 2.09km WSW of Chester, CAThu, Sep 30, 6:37 AM PDT · 1830 days ago · 1 km deep · 79 km away
5. 1.512km ESE of Viola, CAFri, Oct 1, 7:13 AM PDT · 1829 days ago · 4 km deep · 54 km away
6. 1.99km WSW of Chester, CAFri, Oct 1, 12:38 PM PDT · 1828 days ago · 4 km deep · 80 km away
7. 2.12km NW of Bella Vista, CASat, Oct 2, 12:04 PM PDT · 1827 days ago · 26 km deep · 10 km away
8. 1.74km NW of Bella Vista, CASun, Oct 3, 7:46 AM PDT · 1826 days ago · 27 km deep · 11 km away
9. 1.84km E of Shasta, CATue, Oct 5, 4:00 AM PDT · 1825 days ago · 21 km deep · 24 km away
10. 2.110km NNW of Burney, CAWed, Oct 6, 12:57 AM PDT · 1824 days ago · 10 km deep · 53 km away
11. 2.54km ENE of Shasta, CAWed, Oct 6, 7:18 PM PDT · 1823 days ago · 22 km deep · 25 km away · felt by 3
12. 2.513km SE of Dunsmuir, CAThu, Oct 7, 8:58 PM PDT · 1822 days ago · 7 km deep · 58 km away · felt by 11
13. 1.612km SE of Dunsmuir, CAFri, Oct 8, 2:55 AM PDT · 1822 days ago · 4 km deep · 58 km away
14. 1.74km ENE of Shasta, CAFri, Oct 8, 1:06 PM PDT · 1821 days ago · 21 km deep · 24 km away
15. 1.616km N of Shingletown, CAWed, Oct 13, 7:24 AM PDT · 1817 days ago · 11 km deep · 24 km away · felt by 1
16. 1.913km WSW of Almanor, CAWed, Oct 13, 1:01 PM PDT · 1816 days ago · 9 km deep · 86 km away
17. 1.919km SW of Tennant, CASat, Oct 16, 3:48 PM PDT · 1813 days ago · 6 km deep · 93 km away
18. 2.96km NNE of Hamilton City, CASun, Oct 17, 9:50 AM PDT · 1812 days ago · 17 km deep · 92 km away
19. 2.26km NW of Redding, CAWed, Oct 20, 2:46 AM PDT · 1810 days ago · 20 km deep · 22 km away
20. 2.113km NE of Montgomery Creek, CASun, Oct 24, 6:57 PM PDT · 1805 days ago · 12 km deep · 45 km away
21. 2.114km ESE of Viola, CAMon, Oct 25, 9:48 PM PDT · 1804 days ago · 4 km deep · 56 km away
22. 2.13km NNE of Chester, CAWed, Oct 27, 10:13 PM PDT · 1802 days ago · 8 km deep · 85 km away
23. 1.83km NNE of Chester, CAThu, Oct 28, 6:08 PM PDT · 1801 days ago · 10 km deep · 85 km away
24. 1.836km SE of Fall River Mills, CASun, Oct 31, 9:26 AM PDT · 1798 days ago · 14 km deep · 83 km away
25. 1.619km NE of Big Bend, CAMon, Nov 1, 12:00 AM PDT · 1798 days ago · 4 km deep · 67 km away
26. 2.13km NNE of Chester, CATue, Nov 2, 10:40 PM PDT · 1796 days ago · 9 km deep · 85 km away
27. 1.916km SSE of McCloud, CAWed, Nov 3, 12:27 AM PDT · 1796 days ago · 8 km deep · 58 km away
28. 2.511km NNE of Bella Vista, CAThu, Nov 4, 2:47 PM PDT · 1794 days ago · 9 km deep · 14 km away · felt by 2
29. 1.812km NE of Bella Vista, CAThu, Nov 4, 4:24 PM PDT · 1794 days ago · 7 km deep · 13 km away · felt by 1
30. 1.62km WNW of Shasta Lake, CAWed, Nov 10, 10:19 AM PST · 1788 days ago · 23 km deep · 21 km away
31. 1.69km S of Mineral, CASat, Nov 20, 2:54 AM PST · 1779 days ago · 14 km deep · 63 km away
32. 2.82km NE of Almanor, CASat, Nov 20, 3:52 AM PST · 1779 days ago · 8 km deep · 94 km away · felt by 5
33. 2.36km ENE of Shasta, CATue, Nov 23, 12:23 AM PST · 1776 days ago · 22 km deep · 23 km away

Before

1. 1.99km SSE of McCloud, CAThu, Sep 23, 7:46 PM PDT · 1836 days ago · 4 km deep · 63 km away
2. 1.910km WSW of Chester, CAThu, Sep 23, 2:43 AM PDT · 1837 days ago · 9 km deep · 80 km away
3. 2.06km NE of Dunsmuir, CAWed, Sep 22, 2:24 AM PDT · 1838 days ago · 12 km deep · 72 km away
4. 1.56km NE of Dunsmuir, CAWed, Sep 22, 2:17 AM PDT · 1838 days ago · 11 km deep · 71 km away
5. 1.76km W of McCloud, CAWed, Sep 22, 1:56 AM PDT · 1838 days ago · 12 km deep · 71 km away
6. 1.86km NE of Dunsmuir, CAWed, Sep 22, 1:55 AM PDT · 1838 days ago · 12 km deep · 71 km away
7. 1.76km NE of Dunsmuir, CAWed, Sep 22, 1:41 AM PDT · 1838 days ago · 12 km deep · 72 km away
8. 1.66km NE of Dunsmuir, CAWed, Sep 22, 1:22 AM PDT · 1838 days ago · 12 km deep · 71 km away
9. 2.56km NW of Chico, CASun, Sep 19, 5:27 AM PDT · 1841 days ago · 29 km deep · 95 km away
10. 2.55km NNE of Hamilton City, CAFri, Sep 17, 10:07 AM PDT · 1842 days ago · 19 km deep · 93 km away · felt by 1
11. 1.72km SW of Palo Cedro, CAMon, Sep 13, 9:51 AM PDT · 1846 days ago · 14 km deep · 10 km away
12. 1.815km NE of McCloud, CAMon, Sep 13, 6:39 AM PDT · 1847 days ago · 2 km deep · 84 km away
13. 2.10km S of Palo Cedro, CASun, Sep 12, 1:49 PM PDT · 1847 days ago · 15 km deep · 9 km away · felt by 1
14. 1.615km NNE of Mineral, CASat, Sep 11, 2:16 AM PDT · 1849 days ago · 3 km deep · 59 km away
15. 1.79km E of Carrick, CAFri, Sep 10, 3:01 AM PDT · 1850 days ago · 6 km deep · 93 km away
16. 1.64km W of Shasta Lake, CAThu, Sep 9, 6:27 PM PDT · 1850 days ago · 19 km deep · 23 km away
17. 1.912km ESE of Viola, CAWed, Sep 8, 12:40 PM PDT · 1851 days ago · 5 km deep · 54 km away
18. 1.51km NW of Palo Cedro, CATue, Sep 7, 4:15 PM PDT · 1852 days ago · 16 km deep · 9 km away
19. 1.63km WSW of Shasta Lake, CATue, Sep 7, 9:09 AM PDT · 1852 days ago · 17 km deep · 22 km away
20. 1.51km NW of Palo Cedro, CAMon, Sep 6, 8:45 PM PDT · 1853 days ago · 15 km deep · 9 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc73628941. Read Sun, Oct 4, 2026, 2:08 AM UTC.