California earthquakes

M1.8 earthquake 5 km ESE of Palermo, California

A magnitude 1.8 earthquake struck 5 km ESE of Palermo, California on Thu, Jul 13, 1978, 1:32 AM PDT (08:32 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.2 4 km SSW of Monument Hills, 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
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1978-07-13 08:32:04 UTC
Depth
4.7 km (2.9 mi), shallow
Epicenter
39.412° N, 121.484° 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, 0.6 km in depth
Magnitude uncertainty
±0.24
Depth from
From location
Station coverage gap
80°
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: 31 in the 60 days after this one and 18 in the 30 days before it.

After

  1. 2.95 km ESE of Palermo, California · 17614 days ago · 5 km deep · 0 km away
  2. 2.03 km SE of Palermo, California · 17610 days ago · 6 km deep · 2 km away
  3. 1.92 km N of Palermo, California · 17608 days ago · 8 km deep · 7 km away
  4. 3.34 km W of Bangor, California · 17606 days ago · 5 km deep · 4 km away
  5. 1.65 km W of Bangor, California · 17605 days ago · 5 km deep · 3 km away
  6. 1.76 km WSW of Plumas Eureka (historical), California · 17600 days ago · -1 km deep · 71 km away
  7. 1.93 km SE of Willows, California · 17599 days ago · 20 km deep · 59 km away
  8. 1.74 km ESE of Palermo, California · 17596 days ago · 5 km deep · 1 km away
  9. 2.21 km ESE of South Oroville, California · 17583 days ago · 3 km deep · 10 km away
  10. 2.56 km ESE of Bucks Lake, California · 17582 days ago · 0 km deep · 57 km away
  11. 2.111 km NNE of Clipper Mills, California · 17581 days ago · 15 km deep · 40 km away
  12. 1.810 km W of La Porte, California · 17581 days ago · 8 km deep · 43 km away
  13. 1.54 km WSW of Granite Bay, California · 17577 days ago · 11 km deep · 78 km away
  14. 2.04 km S of Oroville East, California · 17575 days ago · 2 km deep · 6 km away
  15. 2.35 km SE of Bucks Lake, California · 17574 days ago · 1 km deep · 55 km away
  16. 1.62 km NNE of Little Grass Valley, California · 17573 days ago · 9 km deep · 58 km away
  17. 1.87 km SW of Whitehawk, California · 17572 days ago · 18 km deep · 81 km away
  18. 1.81 km E of Oroville East, California · 17572 days ago · 11 km deep · 11 km away
  19. 2.74 km SE of Palermo, California · 17571 days ago · 6 km deep · 1 km away
  20. 3.20 km WSW of Monument Hills, California · 17570 days ago · 8 km deep · 90 km away
  21. 2.22 km SSE of Monument Hills, California · 17568 days ago · 9 km deep · 92 km away
  22. 1.65 km WNW of Bangor, California · 17567 days ago · 5 km deep · 2 km away
  23. 2.24 km SE of Cottonwood, California · 17561 days ago · 11 km deep · 95 km away
  24. 2.21 km SW of Monument Hills, California · 17561 days ago · 10 km deep · 91 km away
  25. 1.94 km SSW of Monument Hills, California · 17560 days ago · 16 km deep · 95 km away
  26. 1.92 km S of Monument Hills, California · 17560 days ago · 10 km deep · 92 km away
  27. 1.73 km W of Granite Bay, California · 17559 days ago · 11 km deep · 77 km away
  28. 4.24 km SSW of Monument Hills, California · 17558 days ago · 10 km deep · 94 km away
  29. 2.02 km S of Monument Hills, California · 17558 days ago · 9 km deep · 92 km away
  30. 3.32 km SW of Monument Hills, California · 17558 days ago · 12 km deep · 93 km away
  31. 2.33 km SSE of Cottonwood, California · 17557 days ago · 11 km deep · 96 km away

Before

  1. 2.216 km ENE of Willows, California · 17616 days ago · 20 km deep · 48 km away
  2. 2.36 km NE of Loma Rica, California · 17617 days ago · 6 km deep · 13 km away
  3. 2.64 km SE of Palermo, California · 17618 days ago · 6 km deep · 2 km away
  4. 2.24 km SE of Palermo, California · 17618 days ago · 6 km deep · 2 km away
  5. 2.04 km SE of Palermo, California · 17618 days ago · 6 km deep · 2 km away
  6. 3.04 km SE of Palermo, California · 17618 days ago · 7 km deep · 2 km away
  7. 2.44 km SE of Palermo, California · 17618 days ago · 6 km deep · 2 km away
  8. 3.24 km SE of Palermo, California · 17618 days ago · 7 km deep · 2 km away
  9. 2.24 km SE of Palermo, California · 17618 days ago · 6 km deep · 2 km away
  10. 2.64 km SE of Palermo, California · 17619 days ago · 6 km deep · 2 km away
  11. 1.82 km E of Palermo, California · 17624 days ago · 7 km deep · 3 km away
  12. 2.03 km E of Palermo, California · 17626 days ago · 7 km deep · 3 km away
  13. 1.62 km ESE of Folsom, California · 17631 days ago · 10 km deep · 87 km away
  14. 1.64 km SSW of Hamilton City, California · 17632 days ago · 17 km deep · 58 km away
  15. 2.05 km ESE of Palermo, California · 17632 days ago · 6 km deep · 1 km away
  16. 1.64 km SE of Palermo, California · 17642 days ago · 4 km deep · 2 km away
  17. 1.63 km NE of Palermo, California · 17642 days ago · 4 km deep · 5 km away
  18. 1.67 km NNE of Durham, California · 17644 days ago · 20 km deep · 40 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1041029. Read Sun, Oct 4, 2026, 7:51 PM UTC.