California earthquakes

M1.8 earthquake 22km SSW of Tecopa, CA

A magnitude 1.8 earthquake struck 22km SSW of Tecopa, CA on Tue, Dec 8, 1981, 12:25 AM PST (08:25 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.4 15km NNW of Ludlow, CA. This one was a foreshock.

Baker 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 (mh), micro
Local time
UTC
1981-12-08 08:25:11 UTC
Depth
5.1 km (3.2 mi), shallow
Epicenter
35.655° N, 116.298° 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 1.6 km horizontally, 31.6 km in depth
Depth from
Operator assigned
Station coverage gap
276°, poorly surrounded by stations
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.415km NNW of Ludlow, CA · 16363 days ago · 3 km deep · 90 km away
  2. 1.615km WNW of Fort Irwin, CA · 16351 days ago · 9 km deep · 63 km away
  3. 1.630km NNW of Barstow, CA · 16344 days ago · 3 km deep · 90 km away
  4. 1.722km NNE of Trona, CA · 16341 days ago · 5 km deep · 94 km away
  5. 1.520km NNE of Trona, CA · 16340 days ago · 5 km deep · 93 km away
  6. 2.445km WSW of Shoshone, CA · 16330 days ago · 5 km deep · 49 km away
  7. 2.138km NNW of Fort Irwin, CA · 16317 days ago · 5 km deep · 55 km away
  8. 2.116km SW of Fort Irwin, CA · 16317 days ago · 1 km deep · 72 km away
  9. 2.226km S of Trona, CA · 16313 days ago · 5 km deep · 94 km away
  10. 2.221km E of Shoshone, CA · 16308 days ago · 5 km deep · 45 km away

Before

  1. 1.834km SE of Fort Irwin, CA · 16368 days ago · 5 km deep · 73 km away
  2. 1.634km SE of Fort Irwin, CA · 16371 days ago · 5 km deep · 73 km away
  3. 1.631km N of Baker, CA · 16376 days ago · 5 km deep · 22 km away
  4. 2.635km E of Barstow, CA · 16377 days ago · 5 km deep · 95 km away
  5. 2.034km E of Barstow, CA · 16377 days ago · 5 km deep · 95 km away
  6. 1.734km E of Barstow, CA · 16377 days ago · 1 km deep · 94 km away
  7. 3.336km E of Barstow, CA · 16377 days ago · 11 km deep · 92 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci102773. Read Sat, Sep 26, 2026, 7:31 PM UTC.