California earthquakes

M2.1 earthquake 15 km NW of Big Bend, California

A magnitude 2.1 earthquake struck 15 km NW of Big Bend, California on Fri, Jan 21, 1983, 12:49 AM PST (08:49 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M2.2 10 km NNW of Burney, 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
1983-01-21 08:49:15 UTC
Depth
9.4 km (5.9 mi), shallow
Epicenter
41.137° N, 122.020° 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 0.4 km horizontally, 1.8 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
141°
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: 9 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 1.636 km SE of Tennant, California · 15951 days ago · 3 km deep · 40 km away
  2. 1.617 km N of Big Bend, California · 15949 days ago · 4 km deep · 9 km away
  3. 1.811 km SE of Millville, California · 15947 days ago · 1 km deep · 73 km away
  4. 2.210 km NNW of Burney, California · 15944 days ago · 7 km deep · 32 km away
  5. 1.718 km N of Big Bend, California · 15932 days ago · 14 km deep · 11 km away
  6. 2.018 km SW of Old Station, California · 15920 days ago · 0 km deep · 77 km away
  7. 2.53 km WNW of Redding, California · 15915 days ago · 24 km deep · 70 km away
  8. 2.03 km NNE of Old Station, California · 15894 days ago · 2 km deep · 70 km away
  9. 1.73 km NNE of Old Station, California · 15894 days ago · 3 km deep · 70 km away

Before

  1. 1.912 km ENE of Bend, California · 15959 days ago · 7 km deep · 95 km away
  2. 1.712 km ENE of Mineral, California · 15959 days ago · 7 km deep · 94 km away
  3. 2.54 km SSW of Tennant, California · 15960 days ago · -2 km deep · 46 km away
  4. 1.727 km ENE of Old Station, California · 15962 days ago · 9 km deep · 86 km away
  5. 1.82 km NE of Dunsmuir, California · 15966 days ago · 2 km deep · 22 km away
  6. 1.94 km ESE of Dunsmuir, California · 15966 days ago · 5 km deep · 18 km away
  7. 2.12 km E of Dunsmuir, California · 15966 days ago · 5 km deep · 20 km away
  8. 2.27 km N of Cassel, California · 15966 days ago · 4 km deep · 42 km away
  9. 2.86 km NNW of Cassel, California · 15966 days ago · 6 km deep · 41 km away
  10. 2.07 km E of Montague, California · 15966 days ago · 3 km deep · 75 km away
  11. 3.27 km SE of Dunsmuir, California · 15967 days ago · 13 km deep · 16 km away
  12. 2.311 km S of Old Station, California · 15969 days ago · -2 km deep · 80 km away
  13. 1.817 km NE of Mineral, California · 15973 days ago · 10 km deep · 88 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1086426. Read Tue, Sep 22, 2026, 8:59 PM UTC.