California earthquakes

M2.2 earthquake 5 km SE of Palermo, California

A magnitude 2.2 earthquake struck 5 km SE of Palermo, California on Wed, May 24, 1978, 8:54 PM PDT (03:54 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M3.3 4 km W of Bangor, California. This one was a foreshock.

Palermo 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
2.2 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1978-05-25 03:54:23 UTC
Depth
3.5 km (2.2 mi), shallow
Epicenter
39.400° N, 121.490° 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 0.3 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
86°
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 33 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.96 km NE of Princeton, California · 17662 days ago · 15 km deep · 41 km away
  2. 3.04 km SE of Palermo, California · 17658 days ago · 6 km deep · 1 km away
  3. 1.74 km SSE of Palermo, California · 17657 days ago · 5 km deep · 2 km away
  4. 1.66 km NNE of Rough and Ready, California · 17654 days ago · 9 km deep · 36 km away
  5. 2.96 km WNW of Nevada City, California · 17654 days ago · 12 km deep · 37 km away
  6. 1.812 km S of Willows, California · 17653 days ago · 24 km deep · 59 km away
  7. 1.67 km NNE of Rough and Ready, California · 17652 days ago · 9 km deep · 36 km away
  8. 1.57 km NNE of Rough and Ready, California · 17651 days ago · 11 km deep · 36 km away
  9. 1.66 km WNW of Nevada City, California · 17651 days ago · 9 km deep · 37 km away
  10. 2.35 km E of Los Molinos, California · 17649 days ago · -1 km deep · 83 km away
  11. 1.67 km NNE of Durham, California · 17642 days ago · 20 km deep · 40 km away
  12. 1.63 km NE of Palermo, California · 17640 days ago · 4 km deep · 6 km away
  13. 1.64 km SE of Palermo, California · 17640 days ago · 4 km deep · 2 km away
  14. 2.05 km ESE of Palermo, California · 17629 days ago · 6 km deep · 3 km away
  15. 1.64 km SSW of Hamilton City, California · 17629 days ago · 17 km deep · 58 km away
  16. 1.62 km ESE of Folsom, California · 17629 days ago · 10 km deep · 86 km away
  17. 2.03 km E of Palermo, California · 17624 days ago · 7 km deep · 4 km away
  18. 1.82 km E of Palermo, California · 17622 days ago · 7 km deep · 4 km away
  19. 2.64 km SE of Palermo, California · 17617 days ago · 6 km deep · 1 km away
  20. 2.24 km SE of Palermo, California · 17616 days ago · 6 km deep · 1 km away
  21. 3.24 km SE of Palermo, California · 17616 days ago · 7 km deep · 1 km away
  22. 2.44 km SE of Palermo, California · 17616 days ago · 6 km deep · 1 km away
  23. 3.04 km SE of Palermo, California · 17616 days ago · 7 km deep · 1 km away
  24. 2.04 km SE of Palermo, California · 17616 days ago · 6 km deep · 2 km away
  25. 2.24 km SE of Palermo, California · 17616 days ago · 6 km deep · 1 km away
  26. 2.64 km SE of Palermo, California · 17615 days ago · 6 km deep · 2 km away
  27. 2.36 km NE of Loma Rica, California · 17615 days ago · 6 km deep · 13 km away
  28. 2.216 km ENE of Willows, California · 17614 days ago · 20 km deep · 48 km away
  29. 1.85 km ESE of Palermo, California · 17613 days ago · 5 km deep · 1 km away
  30. 2.95 km ESE of Palermo, California · 17612 days ago · 5 km deep · 2 km away
  31. 2.03 km SE of Palermo, California · 17608 days ago · 6 km deep · 2 km away
  32. 1.92 km N of Palermo, California · 17606 days ago · 8 km deep · 8 km away
  33. 3.34 km W of Bangor, California · 17603 days ago · 5 km deep · 3 km away

Before

  1. 1.95 km SE of Palermo, California · 17665 days ago · 6 km deep · 1 km away
  2. 1.73 km NE of Oroville, California · 17671 days ago · 10 km deep · 15 km away
  3. 1.97 km N of Thermalito, California · 17675 days ago · 4 km deep · 22 km away
  4. 2.33 km S of Palermo, California · 17677 days ago · 10 km deep · 4 km away
  5. 1.88 km SSW of Guinda, California · 17677 days ago · 10 km deep · 96 km away
  6. 2.30 km WNW of Oroville East, California · 17679 days ago · 4 km deep · 13 km away
  7. 2.54 km SE of Palermo, California · 17686 days ago · 5 km deep · 1 km away
  8. 1.74 km SE of Palermo, California · 17687 days ago · 5 km deep · 1 km away
  9. 2.31 km ESE of Dunnigan, California · 17689 days ago · 17 km deep · 70 km away
  10. 2.21 km WSW of Oroville East, California · 17690 days ago · 3 km deep · 12 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1040405. Read Fri, Oct 2, 2026, 6:04 PM UTC.