California earthquakes

M2.2 earthquake 4 km SE of Palermo, California

A magnitude 2.2 earthquake struck 4 km SE of Palermo, California on Mon, Jul 10, 1978, 6:55 AM PDT (13:55 UTC), 6 km (4 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), micro
Local time
UTC
1978-07-10 13:55:34 UTC
Depth
5.8 km (3.6 mi), shallow
Epicenter
39.408° N, 121.503° 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, 0.5 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
95°
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 32 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 2.64 km SE of Palermo, California · 17613 days ago · 6 km deep · 0 km away
  2. 2.36 km NE of Loma Rica, California · 17613 days ago · 6 km deep · 14 km away
  3. 2.216 km ENE of Willows, California · 17612 days ago · 20 km deep · 47 km away
  4. 1.85 km ESE of Palermo, California · 17611 days ago · 5 km deep · 2 km away
  5. 2.95 km ESE of Palermo, California · 17610 days ago · 5 km deep · 2 km away
  6. 2.03 km SE of Palermo, California · 17606 days ago · 6 km deep · 0 km away
  7. 1.92 km N of Palermo, California · 17604 days ago · 8 km deep · 7 km away
  8. 3.34 km W of Bangor, California · 17601 days ago · 5 km deep · 5 km away
  9. 1.65 km W of Bangor, California · 17601 days ago · 5 km deep · 4 km away
  10. 1.76 km WSW of Plumas Eureka (historical), California · 17596 days ago · -1 km deep · 72 km away
  11. 1.93 km SE of Willows, California · 17595 days ago · 20 km deep · 57 km away
  12. 1.74 km ESE of Palermo, California · 17592 days ago · 5 km deep · 1 km away
  13. 1.710 km ENE of Clearlake Oaks, California · 17590 days ago · -1 km deep · 98 km away
  14. 2.21 km ESE of South Oroville, California · 17579 days ago · 3 km deep · 10 km away
  15. 2.56 km ESE of Bucks Lake, California · 17578 days ago · 0 km deep · 58 km away
  16. 2.111 km NNE of Clipper Mills, California · 17577 days ago · 15 km deep · 41 km away
  17. 1.810 km W of La Porte, California · 17577 days ago · 8 km deep · 44 km away
  18. 1.54 km WSW of Granite Bay, California · 17573 days ago · 11 km deep · 78 km away
  19. 2.04 km S of Oroville East, California · 17571 days ago · 2 km deep · 7 km away
  20. 2.35 km SE of Bucks Lake, California · 17570 days ago · 1 km deep · 56 km away
  21. 1.62 km NNE of Little Grass Valley, California · 17569 days ago · 9 km deep · 59 km away
  22. 1.87 km SW of Whitehawk, California · 17568 days ago · 18 km deep · 82 km away
  23. 1.81 km E of Oroville East, California · 17568 days ago · 11 km deep · 12 km away
  24. 2.74 km SE of Palermo, California · 17567 days ago · 6 km deep · 1 km away
  25. 3.20 km WSW of Monument Hills, California · 17566 days ago · 8 km deep · 89 km away
  26. 2.22 km SSE of Monument Hills, California · 17564 days ago · 9 km deep · 91 km away
  27. 1.65 km WNW of Bangor, California · 17563 days ago · 5 km deep · 4 km away
  28. 2.24 km SE of Cottonwood, California · 17557 days ago · 11 km deep · 94 km away
  29. 2.21 km SW of Monument Hills, California · 17557 days ago · 10 km deep · 90 km away
  30. 1.94 km SSW of Monument Hills, California · 17556 days ago · 16 km deep · 94 km away
  31. 1.92 km S of Monument Hills, California · 17556 days ago · 10 km deep · 91 km away
  32. 1.73 km W of Granite Bay, California · 17555 days ago · 11 km deep · 77 km away

Before

  1. 2.04 km SE of Palermo, California · 17614 days ago · 6 km deep · 0 km away
  2. 3.04 km SE of Palermo, California · 17614 days ago · 7 km deep · 0 km away
  3. 2.44 km SE of Palermo, California · 17614 days ago · 6 km deep · 0 km away
  4. 3.24 km SE of Palermo, California · 17614 days ago · 7 km deep · 0 km away
  5. 2.24 km SE of Palermo, California · 17614 days ago · 6 km deep · 0 km away
  6. 2.64 km SE of Palermo, California · 17615 days ago · 6 km deep · 0 km away
  7. 1.82 km E of Palermo, California · 17620 days ago · 7 km deep · 3 km away
  8. 2.03 km E of Palermo, California · 17622 days ago · 7 km deep · 3 km away
  9. 1.62 km ESE of Folsom, California · 17627 days ago · 10 km deep · 88 km away
  10. 1.64 km SSW of Hamilton City, California · 17627 days ago · 17 km deep · 57 km away
  11. 2.05 km ESE of Palermo, California · 17628 days ago · 6 km deep · 3 km away
  12. 1.64 km SE of Palermo, California · 17638 days ago · 4 km deep · 1 km away
  13. 1.63 km NE of Palermo, California · 17638 days ago · 4 km deep · 5 km away
  14. 1.67 km NNE of Durham, California · 17640 days ago · 20 km deep · 39 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1040979. Read Wed, Sep 30, 2026, 6:25 PM UTC.