California earthquakes

M2.0 earthquake 30km S of Tecopa, CA

A magnitude 2.0 earthquake struck 30km S of Tecopa, CA on Sat, Oct 31, 1981, 4:03 PM PST (00:03 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.3 36km E of Barstow, CA. 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
2.0 (mh), micro
Local time
UTC
1981-11-01 00:03:12 UTC
Depth
5.1 km (3.2 mi), shallow
Epicenter
35.584° N, 116.197° 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 1.4 km horizontally, 31.6 km in depth
Depth from
Operator assigned
Station coverage gap
266°, poorly surrounded by stations
Stations used
4

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 3.336km E of Barstow, CA · 16378 days ago · 11 km deep · 88 km away
  2. 1.734km E of Barstow, CA · 16378 days ago · 1 km deep · 91 km away
  3. 2.034km E of Barstow, CA · 16378 days ago · 5 km deep · 91 km away
  4. 2.635km E of Barstow, CA · 16377 days ago · 5 km deep · 91 km away
  5. 1.631km N of Baker, CA · 16376 days ago · 5 km deep · 10 km away
  6. 1.634km SE of Fort Irwin, CA · 16371 days ago · 5 km deep · 68 km away
  7. 1.834km SE of Fort Irwin, CA · 16369 days ago · 5 km deep · 68 km away
  8. 1.822km SSW of Tecopa, CA · 16364 days ago · 5 km deep · 12 km away
  9. 2.415km NNW of Ludlow, CA · 16364 days ago · 3 km deep · 82 km away
  10. 1.615km WNW of Fort Irwin, CA · 16352 days ago · 9 km deep · 66 km away
  11. 1.630km NNW of Barstow, CA · 16344 days ago · 3 km deep · 94 km away

Before

  1. 1.940km SSE of Fort Irwin, CA · 16414 days ago · 0 km deep · 80 km away
  2. 1.639km SSE of Fort Irwin, CA · 16415 days ago · 5 km deep · 80 km away
  3. 1.629km WNW of Ludlow, CA · 16428 days ago · 5 km deep · 88 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci526438. Read Sun, Sep 27, 2026, 11:42 AM UTC.