M1.8 earthquake 4km E of Shasta, CA

Magnitude

1.8 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Tue, Oct 5, 2021, 4:00 AM PDT

UTC

2021-10-05 11:00:16 UTC

Depth

20.7 km (12.9 mi), shallow

Epicenter

40.606° N, 122.444° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.5 km horizontally, 0.2 km in depth

Magnitude uncertainty

±0.10

Depth from

From location

Station coverage gap

52°

Stations used

18

• Shasta, CaliforniaPopulation 1,771. Forecast4 kmE
• Redding, CaliforniaPopulation 91,582. Forecast5 kmWNW
• Chico, CaliforniaPopulation 121,345. Forecast110 kmNNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast818 kmNNW

After

1. 2.110km NNW of Burney, CAWed, Oct 6, 12:57 AM PDT · 1824 days ago · 10 km deep · 72 km away
2. 2.54km ENE of Shasta, CAWed, Oct 6, 7:18 PM PDT · 1824 days ago · 22 km deep · 1 km away · felt by 3
3. 2.513km SE of Dunsmuir, CAThu, Oct 7, 8:58 PM PDT · 1823 days ago · 7 km deep · 64 km away · felt by 11
4. 1.612km SE of Dunsmuir, CAFri, Oct 8, 2:55 AM PDT · 1822 days ago · 4 km deep · 63 km away
5. 1.74km ENE of Shasta, CAFri, Oct 8, 1:06 PM PDT · 1822 days ago · 21 km deep · 1 km away
6. 1.616km N of Shingletown, CAWed, Oct 13, 7:24 AM PDT · 1817 days ago · 11 km deep · 48 km away · felt by 1
7. 1.919km SW of Tennant, CASat, Oct 16, 3:48 PM PDT · 1814 days ago · 6 km deep · 99 km away
8. 2.96km NNE of Hamilton City, CASun, Oct 17, 9:50 AM PDT · 1813 days ago · 17 km deep · 98 km away
9. 2.26km NW of Redding, CAWed, Oct 20, 2:46 AM PDT · 1810 days ago · 20 km deep · 2 km away
10. 2.113km NE of Montgomery Creek, CASun, Oct 24, 6:57 PM PDT · 1806 days ago · 12 km deep · 64 km away
11. 2.114km ESE of Viola, CAMon, Oct 25, 9:48 PM PDT · 1805 days ago · 4 km deep · 79 km away
12. 1.619km NE of Big Bend, CAMon, Nov 1, 12:00 AM PDT · 1798 days ago · 4 km deep · 83 km away
13. 2.58km E of Willow Creek, CATue, Nov 2, 8:03 AM PDT · 1797 days ago · 26 km deep · 99 km away
14. 1.916km SSE of McCloud, CAWed, Nov 3, 12:27 AM PDT · 1796 days ago · 8 km deep · 66 km away
15. 2.511km NNE of Bella Vista, CAThu, Nov 4, 2:47 PM PDT · 1795 days ago · 9 km deep · 27 km away · felt by 2
16. 1.812km NE of Bella Vista, CAThu, Nov 4, 4:24 PM PDT · 1795 days ago · 7 km deep · 28 km away · felt by 1
17. 1.62km WNW of Shasta Lake, CAWed, Nov 10, 10:19 AM PST · 1789 days ago · 23 km deep · 10 km away
18. 1.69km S of Mineral, CASat, Nov 20, 2:54 AM PST · 1779 days ago · 14 km deep · 84 km away
19. 2.36km ENE of Shasta, CATue, Nov 23, 12:23 AM PST · 1776 days ago · 22 km deep · 2 km away
20. 2.421km SSE of Willow Creek, CAWed, Nov 24, 1:26 AM PST · 1775 days ago · 21 km deep · 93 km away
21. 1.93km NE of Viola, CAWed, Nov 24, 8:08 AM PST · 1775 days ago · 6 km deep · 67 km away
22. 1.612km N of Mineral, CAWed, Nov 24, 10:25 AM PST · 1775 days ago · 4 km deep · 78 km away
23. 2.29km ESE of Willow Creek, CAWed, Nov 24, 10:18 PM PST · 1774 days ago · 22 km deep · 98 km away
24. 1.77km SSE of Mineral, CAFri, Nov 26, 7:28 PM PST · 1773 days ago · 12 km deep · 83 km away
25. 1.711km NNE of Bella Vista, CAFri, Nov 26, 11:03 PM PST · 1772 days ago · 10 km deep · 26 km away
26. 1.612km W of Chester, CASat, Nov 27, 2:39 AM PST · 1772 days ago · 7 km deep · 98 km away
27. 1.58km SSE of Mineral, CASat, Nov 27, 7:14 AM PST · 1772 days ago · 10 km deep · 84 km away
28. 1.712km WSW of Chester, CASat, Nov 27, 10:36 AM PST · 1772 days ago · 7 km deep · 98 km away
29. 2.416km SSE of Mineral, CASat, Nov 27, 2:31 PM PST · 1772 days ago · 6 km deep · 91 km away
30. 2.59km NNE of Hayfork, CASun, Nov 28, 12:56 AM PST · 1771 days ago · 31 km deep · 58 km away

Before

1. 2.018km ESE of Willow Creek, CAMon, Oct 4, 9:05 PM PDT · 1826 days ago · 23 km deep · 89 km away
2. 2.320km ENE of Willow Creek, CAMon, Oct 4, 7:35 PM PDT · 1826 days ago · 36 km deep · 94 km away
3. 1.74km NW of Bella Vista, CASun, Oct 3, 7:46 AM PDT · 1827 days ago · 27 km deep · 17 km away
4. 2.12km NW of Bella Vista, CASat, Oct 2, 12:04 PM PDT · 1828 days ago · 26 km deep · 17 km away
5. 1.512km ESE of Viola, CAFri, Oct 1, 7:13 AM PDT · 1829 days ago · 4 km deep · 77 km away
6. 1.512km ESE of Viola, CAWed, Sep 29, 2:22 PM PDT · 1831 days ago · 3 km deep · 77 km away
7. 2.318km E of Willow Creek, CATue, Sep 28, 9:05 AM PDT · 1832 days ago · 25 km deep · 91 km away
8. 2.021km WSW of Dunsmuir, CATue, Sep 28, 5:57 AM PDT · 1832 days ago · 21 km deep · 56 km away
9. 1.56km NNE of Millville, CAFri, Sep 24, 11:39 AM PDT · 1836 days ago · 13 km deep · 24 km away
10. 1.99km SSE of McCloud, CAThu, Sep 23, 7:46 PM PDT · 1837 days ago · 4 km deep · 69 km away
11. 2.06km NE of Dunsmuir, CAWed, Sep 22, 2:24 AM PDT · 1838 days ago · 12 km deep · 74 km away
12. 1.56km NE of Dunsmuir, CAWed, Sep 22, 2:17 AM PDT · 1838 days ago · 11 km deep · 74 km away
13. 1.76km W of McCloud, CAWed, Sep 22, 1:56 AM PDT · 1838 days ago · 12 km deep · 74 km away
14. 1.86km NE of Dunsmuir, CAWed, Sep 22, 1:55 AM PDT · 1838 days ago · 12 km deep · 74 km away
15. 1.76km NE of Dunsmuir, CAWed, Sep 22, 1:41 AM PDT · 1838 days ago · 12 km deep · 74 km away
16. 1.66km NE of Dunsmuir, CAWed, Sep 22, 1:22 AM PDT · 1838 days ago · 12 km deep · 74 km away
17. 2.55km NNE of Hamilton City, CAFri, Sep 17, 10:07 AM PDT · 1843 days ago · 19 km deep · 99 km away · felt by 1
18. 1.72km SW of Palo Cedro, CAMon, Sep 13, 9:51 AM PDT · 1847 days ago · 14 km deep · 17 km away
19. 1.815km NE of McCloud, CAMon, Sep 13, 6:39 AM PDT · 1847 days ago · 2 km deep · 91 km away
20. 2.10km S of Palo Cedro, CASun, Sep 12, 1:49 PM PDT · 1848 days ago · 15 km deep · 18 km away · felt by 1

From the USGS Earthquake Hazards Program and its partner networks, event nc73633746. Read Sun, Oct 4, 2026, 4:25 PM UTC.