California earthquakes

M2.4 earthquake 12km SE of Weitchpec, CA

A magnitude 2.4 earthquake struck 12km SE of Weitchpec, CA on Sat, Sep 25, 2021, 1:54 AM PDT (08:54 UTC), 37 km (23 mi) below the surface.

A larger quake followed: M2.9 6km NNE of Petrolia, CA. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
2.4 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-09-25 08:54:33 UTC
Depth
37.3 km (23.2 mi), shallow
Epicenter
41.118° N, 123.593° 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, 0.9 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
52°
Stations used
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 1.917km W of Humboldt Hill, CA · 1835 days ago · 21 km deep · 81 km away
  2. 2.021km WSW of Dunsmuir, CA · 1833 days ago · 21 km deep · 92 km away
  3. 2.318km E of Willow Creek, CA · 1833 days ago · 25 km deep · 24 km away
  4. 1.926km ESE of Rio Dell, CA · 1832 days ago · 20 km deep · 79 km away
  5. 2.320km ENE of Willow Creek, CA · 1826 days ago · 36 km deep · 18 km away
  6. 2.018km ESE of Willow Creek, CA · 1826 days ago · 23 km deep · 30 km away
  7. 2.414km SW of Ferndale, CA · 1826 days ago · 23 km deep · 96 km away
  8. 2.018km E of Rio Dell, CA · 1824 days ago · 20 km deep · 75 km away
  9. 1.818km E of Rio Dell, CA · 1824 days ago · 20 km deep · 76 km away
  10. 2.17km SSE of Pine Hills, CA · 1823 days ago · 25 km deep · 66 km away
  11. 1.713km E of Hydesville, CA · 1817 days ago · 24 km deep · 68 km away
  12. 1.74km NNW of Ferndale, CA · 1814 days ago · 17 km deep · 81 km away
  13. 1.913km ENE of Hydesville, CA · 1803 days ago · 21 km deep · 65 km away
  14. 2.58km E of Willow Creek, CA · 1798 days ago · 26 km deep · 20 km away
  15. 2.66km NNE of Petrolia, CA · 1798 days ago · 28 km deep · 100 km away · felt by 2
  16. 2.028km NE of Redway, CA · 1797 days ago · 27 km deep · 90 km away
  17. 1.86km NNE of Petrolia, CA · 1794 days ago · 28 km deep · 99 km away
  18. 2.86km NNE of Petrolia, CA · 1791 days ago · 27 km deep · 99 km away
  19. 2.96km NNE of Petrolia, CA · 1789 days ago · 29 km deep · 99 km away
  20. 2.516km SSE of Somes Bar, CA · 1788 days ago · 38 km deep · 24 km away

Before

  1. 1.612km ENE of Hydesville, CA · 1851 days ago · 25 km deep · 66 km away
  2. 2.315km W of Weaverville, CA · 1858 days ago · 39 km deep · 58 km away
  3. 2.432km W of Hayfork, CA · 1863 days ago · 24 km deep · 57 km away
  4. 1.712km SSW of Ferndale, CA · 1866 days ago · 18 km deep · 94 km away
  5. 1.712km SSW of Ferndale, CA · 1866 days ago · 18 km deep · 94 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73629181. Read Mon, Oct 5, 2026, 1:36 PM UTC.