California earthquakes

M2.0 earthquake 18km ESE of Willow Creek, CA

A magnitude 2.0 earthquake struck 18km ESE of Willow Creek, CA on Mon, Oct 4, 2021, 9:05 PM PDT (04:05 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M4.4 5km NNE of Petrolia, CA. This one was a foreshock.

Willow Creek forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.0 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-10-05 04:05:58 UTC
Depth
23.0 km (14.3 mi), shallow
Epicenter
40.880° N, 123.434° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.4 km horizontally, 1.4 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
42°
Stations used
17

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 39 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 1.84km E of Shasta, CA · 1826 days ago · 21 km deep · 89 km away
  2. 2.414km SW of Ferndale, CA · 1826 days ago · 23 km deep · 92 km away
  3. 2.54km ENE of Shasta, CA · 1824 days ago · 22 km deep · 88 km away · felt by 3
  4. 2.018km E of Rio Dell, CA · 1824 days ago · 20 km deep · 59 km away
  5. 1.818km E of Rio Dell, CA · 1824 days ago · 20 km deep · 60 km away
  6. 1.612km SE of Petrolia, CA · 1823 days ago · 11 km deep · 95 km away
  7. 1.74km ENE of Shasta, CA · 1823 days ago · 21 km deep · 89 km away
  8. 2.17km SSE of Pine Hills, CA · 1823 days ago · 25 km deep · 62 km away
  9. 1.713km E of Hydesville, CA · 1817 days ago · 24 km deep · 55 km away
  10. 2.08km SSE of Redway, CA · 1815 days ago · 17 km deep · 97 km away
  11. 1.98km SSE of Redway, CA · 1815 days ago · 17 km deep · 97 km away
  12. 1.65km NW of Redway, CA · 1814 days ago · 23 km deep · 90 km away
  13. 1.74km NNW of Ferndale, CA · 1814 days ago · 17 km deep · 77 km away
  14. 2.26km NW of Redding, CA · 1811 days ago · 20 km deep · 90 km away
  15. 1.913km ENE of Hydesville, CA · 1803 days ago · 21 km deep · 54 km away
  16. 2.58km E of Willow Creek, CA · 1798 days ago · 26 km deep · 11 km away
  17. 4.45km NNE of Petrolia, CA · 1797 days ago · 30 km deep · 90 km away · felt by 114 · tsunami flag
  18. 2.34km NNE of Petrolia, CA · 1797 days ago · 30 km deep · 91 km away
  19. 2.66km NNE of Petrolia, CA · 1797 days ago · 28 km deep · 89 km away · felt by 2
  20. 2.56km N of Petrolia, CA · 1797 days ago · 29 km deep · 91 km away
  21. 3.06km NNE of Petrolia, CA · 1797 days ago · 30 km deep · 90 km away · felt by 10
  22. 2.53km N of Petrolia, CA · 1797 days ago · 28 km deep · 92 km away
  23. 2.028km NE of Redway, CA · 1797 days ago · 27 km deep · 65 km away
  24. 1.75km NNE of Petrolia, CA · 1797 days ago · 28 km deep · 90 km away
  25. 2.45km NNW of Petrolia, CA · 1797 days ago · 29 km deep · 93 km away
  26. 2.48km SSE of Petrolia, CA · 1795 days ago · 21 km deep · 98 km away
  27. 1.86km NNE of Petrolia, CA · 1794 days ago · 28 km deep · 89 km away
  28. 2.86km NNE of Petrolia, CA · 1791 days ago · 27 km deep · 89 km away
  29. 1.62km WNW of Shasta Lake, CA · 1790 days ago · 23 km deep · 91 km away
  30. 2.96km NNE of Petrolia, CA · 1789 days ago · 29 km deep · 89 km away
  31. 2.516km SSE of Somes Bar, CA · 1788 days ago · 38 km deep · 42 km away
  32. 1.72km N of Redway, CA · 1780 days ago · 22 km deep · 88 km away
  33. 2.36km ENE of Shasta, CA · 1777 days ago · 22 km deep · 90 km away
  34. 2.421km SSE of Willow Creek, CA · 1776 days ago · 21 km deep · 14 km away
  35. 2.29km ESE of Willow Creek, CA · 1775 days ago · 22 km deep · 9 km away
  36. 2.313km SE of Petrolia, CA · 1775 days ago · 12 km deep · 93 km away
  37. 2.615km SE of Petrolia, CA · 1775 days ago · 11 km deep · 93 km away · felt by 1
  38. 2.59km NNE of Hayfork, CA · 1772 days ago · 31 km deep · 38 km away
  39. 1.84km N of Hydesville, CA · 1770 days ago · 19 km deep · 65 km away

Before

  1. 2.320km ENE of Willow Creek, CA · 1826 days ago · 36 km deep · 15 km away
  2. 1.926km ESE of Rio Dell, CA · 1832 days ago · 20 km deep · 60 km away
  3. 2.318km E of Willow Creek, CA · 1833 days ago · 25 km deep · 8 km away
  4. 2.021km WSW of Dunsmuir, CA · 1833 days ago · 21 km deep · 83 km away
  5. 2.713km SE of Petrolia, CA · 1833 days ago · 12 km deep · 93 km away
  6. 1.917km W of Humboldt Hill, CA · 1835 days ago · 21 km deep · 83 km away
  7. 3.613km SE of Petrolia, CA · 1835 days ago · 12 km deep · 93 km away · felt by 12
  8. 2.412km SE of Weitchpec, CA · 1836 days ago · 37 km deep · 30 km away
  9. 1.612km SE of Petrolia, CA · 1847 days ago · 11 km deep · 95 km away
  10. 1.612km ENE of Hydesville, CA · 1851 days ago · 25 km deep · 56 km away
  11. 1.64km W of Shasta Lake, CA · 1851 days ago · 19 km deep · 89 km away
  12. 1.63km WSW of Shasta Lake, CA · 1854 days ago · 17 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73633611. Read Mon, Oct 5, 2026, 9:16 AM UTC.