California earthquakes

M2.1 earthquake 7 km NNE of Proberta, California

A magnitude 2.1 earthquake struck 7 km NNE of Proberta, California on Mon, Jan 27, 1986, 8:13 AM PST (16:13 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.0 25 km W of Paskenta, 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
2.1 (md), micro
Local time
UTC
1986-01-27 16:13:32 UTC
Depth
6.1 km (3.8 mi), shallow
Epicenter
40.148° N, 122.143° 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 0.5 km horizontally, 8.9 km in depth
Magnitude uncertainty
±0.19
Depth from
From location
Station coverage gap
180°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.928 km E of Covelo, California · 14848 days ago · 4 km deep · 76 km away
  2. 3.025 km W of Paskenta, California · 14842 days ago · -1 km deep · 64 km away
  3. 1.82 km SSE of Prattville, California · 14840 days ago · 8 km deep · 85 km away
  4. 1.86 km S of Prattville, California · 14838 days ago · 4 km deep · 83 km away
  5. 2.09 km W of Burney, California · 14834 days ago · 14 km deep · 88 km away
  6. 2.417 km WSW of Elk Creek, California · 14833 days ago · 3 km deep · 85 km away
  7. 3.110 km E of Artois, California · 14830 days ago · 11 km deep · 58 km away
  8. 2.55 km E of Bella Vista, California · 14823 days ago · 22 km deep · 54 km away
  9. 1.95 km SE of Paynes Creek, California · 14816 days ago · 9 km deep · 28 km away
  10. 1.616 km S of Round Mountain, California · 14807 days ago · 10 km deep · 58 km away
  11. 1.69 km E of Lakehead, California · 14806 days ago · 4 km deep · 85 km away
  12. 1.97 km NW of Butte Meadows, California · 14803 days ago · 13 km deep · 45 km away
  13. 1.913 km NNE of Mineral, California · 14800 days ago · 3 km deep · 62 km away
  14. 1.713 km NNE of Mineral, California · 14800 days ago · 3 km deep · 61 km away
  15. 2.010 km WNW of Big Bend, California · 14798 days ago · 4 km deep · 100 km away
  16. 2.22 km SSW of Storrie, California · 14793 days ago · 4 km deep · 74 km away

Before

  1. 1.86 km ESE of Bella Vista, California · 14851 days ago · 19 km deep · 52 km away
  2. 2.112 km NE of Bend, California · 14858 days ago · 19 km deep · 20 km away
  3. 2.214 km W of Chester, California · 14858 days ago · 4 km deep · 65 km away
  4. 2.126 km W of Paskenta, California · 14864 days ago · -1 km deep · 65 km away
  5. 1.911 km NE of Mountain Gate, California · 14864 days ago · 17 km deep · 71 km away
  6. 1.625 km SE of Covelo, California · 14869 days ago · 4 km deep · 99 km away
  7. 1.50 km NNW of Lake Almanor Peninsula, California · 14870 days ago · 6 km deep · 87 km away
  8. 2.37 km ESE of Millville, California · 14872 days ago · -1 km deep · 43 km away
  9. 2.010 km NNE of Princeton, California · 14873 days ago · 5 km deep · 75 km away
  10. 3.24 km ESE of Bella Vista, California · 14877 days ago · 19 km deep · 53 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc66586. Read Wed, Sep 23, 2026, 11:28 PM UTC.