California earthquakes

M1.6 earthquake 4 km ESE of Palermo, California

A magnitude 1.6 earthquake struck 4 km ESE of Palermo, California on Thu, Feb 7, 1985, 6:02 AM PST (14:02 UTC), 9 km (5 mi) below the surface.

A larger quake followed: M3.2 20 km WSW of Williams, California. 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
1.6 (md), micro
Local time
UTC
1985-02-07 14:02:24 UTC
Depth
8.6 km (5.4 mi), shallow
Epicenter
39.418° N, 121.495° 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
±0.36
Depth from
From location
Station coverage gap
74°
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: 36 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 1.83 km NNW of Lake Almanor West, California · 15206 days ago · 3 km deep · 98 km away
  2. 1.72 km N of Lake Almanor West, California · 15203 days ago · 6 km deep · 97 km away
  3. 2.015 km SW of Lake Almanor West, California · 15193 days ago · 8 km deep · 81 km away
  4. 2.53 km N of Plumas Eureka, California · 15184 days ago · -1 km deep · 85 km away
  5. 2.53 km S of Graeagle, California · 15183 days ago · 4 km deep · 82 km away
  6. 2.21 km NNW of Plumas Eureka, California · 15180 days ago · 3 km deep · 84 km away
  7. 1.513 km NE of Butte Meadows, California · 15179 days ago · 2 km deep · 85 km away
  8. 1.86 km ENE of Chico, California · 15176 days ago · 22 km deep · 43 km away
  9. 2.32 km WNW of La Porte, California · 15176 days ago · 12 km deep · 51 km away
  10. 1.98 km W of La Porte, California · 15176 days ago · 11 km deep · 45 km away
  11. 2.58 km WSW of La Porte, California · 15176 days ago · 14 km deep · 44 km away
  12. 2.19 km NW of Belden, California · 15175 days ago · 4 km deep · 72 km away
  13. 1.65 km W of La Porte, California · 15173 days ago · 12 km deep · 48 km away
  14. 1.97 km W of La Porte, California · 15173 days ago · 12 km deep · 47 km away
  15. 2.27 km W of La Porte, California · 15171 days ago · 7 km deep · 47 km away
  16. 2.86 km NW of Guinda, California · 15169 days ago · 0 km deep · 89 km away
  17. 2.43 km NNE of Guinda, California · 15169 days ago · -1 km deep · 85 km away
  18. 1.96 km NE of Crescent Mills, California · 15168 days ago · 3 km deep · 97 km away
  19. 1.513 km N of Butte Meadows, California · 15163 days ago · 10 km deep · 88 km away
  20. 1.919 km WSW of Williams, California · 15160 days ago · 1 km deep · 83 km away
  21. 2.2Northern California · 15159 days ago · 5 km deep · 89 km away
  22. 2.420 km WSW of Williams, California · 15159 days ago · 0 km deep · 83 km away
  23. 1.818 km W of Williams, California · 15158 days ago · 4 km deep · 82 km away
  24. 3.220 km WSW of Williams, California · 15157 days ago · 5 km deep · 84 km away
  25. 1.719 km WSW of Williams, California · 15157 days ago · 2 km deep · 83 km away
  26. 2.420 km WSW of Williams, California · 15157 days ago · 1 km deep · 83 km away
  27. 1.617 km W of Williams, California · 15157 days ago · 3 km deep · 80 km away
  28. 2.220 km WSW of Williams, California · 15156 days ago · 6 km deep · 84 km away
  29. 2.520 km WSW of Williams, California · 15156 days ago · 5 km deep · 83 km away
  30. 2.417 km WSW of Williams, California · 15156 days ago · 5 km deep · 80 km away
  31. 2.04 km ENE of Tobin, California · 15156 days ago · 12 km deep · 62 km away
  32. 2.219 km WSW of Williams, California · 15154 days ago · 4 km deep · 83 km away
  33. 2.120 km WSW of Williams, California · 15154 days ago · 2 km deep · 84 km away
  34. 1.85 km WNW of Dobbins, California · 15153 days ago · 19 km deep · 20 km away
  35. 2.27 km NNE of Elk Creek, California · 15153 days ago · 12 km deep · 91 km away
  36. 1.820 km WSW of Williams, California · 15150 days ago · 4 km deep · 84 km away

Before

  1. 1.512 km W of Chester, California · 15210 days ago · 3 km deep · 97 km away
  2. 1.63 km ENE of Loma Rica, California · 15211 days ago · 1 km deep · 14 km away
  3. 2.03 km NNE of Lake Almanor West, California · 15222 days ago · 6 km deep · 98 km away
  4. 2.00 km SSW of Twain, California · 15239 days ago · 7 km deep · 75 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc40215. Read Wed, Sep 30, 2026, 5:07 AM UTC.