California earthquakes

M1.8 earthquake 50km W of Shoshone, CA

A magnitude 1.8 earthquake struck 50km W of Shoshone, CA on Mon, Sep 7, 1981, 10:45 PM PDT (05:45 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.6 16km SSW of Searles Valley, 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
1.8 (mc), micro
Local time
UTC
1981-09-08 05:45:04 UTC
Depth
4.9 km (3.1 mi), shallow
Epicenter
35.934° N, 116.821° 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 2.6 km horizontally, 31.6 km in depth
Depth from
Operator assigned
Station coverage gap
251°, poorly surrounded by stations
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 2.616km SSW of Searles Valley, CA · 16445 days ago · -1 km deep · 67 km away
  2. 2.020km WNW of Searles Valley, CA · 16445 days ago · 1 km deep · 70 km away
  3. 2.116km SSW of Searles Valley, CA · 16441 days ago · 2 km deep · 66 km away
  4. 1.712km NNE of Inyokern, CA · 16431 days ago · 4 km deep · 86 km away
  5. 2.223km E of Little Lake, CA · 16430 days ago · 0 km deep · 75 km away
  6. 1.78km ESE of Coso Junction, CA · 16429 days ago · 4 km deep · 95 km away
  7. 1.716km N of Searles Valley, CA · 16411 days ago · 5 km deep · 52 km away
  8. 2.214km NE of Coso Junction, CA · 16409 days ago · 4 km deep · 93 km away
  9. 2.140km ENE of Coso Junction, CA · 16402 days ago · 5 km deep · 72 km away
  10. 1.519km W of Searles Valley, CA · 16398 days ago · 0 km deep · 73 km away
  11. 2.030km S of Tecopa, CA · 16398 days ago · 5 km deep · 68 km away
  12. 1.525km NNE of Trona, CA · 16397 days ago · 5 km deep · 44 km away
  13. 2.18km NNE of Little Lake, CA · 16395 days ago · 1 km deep · 96 km away
  14. 2.217km NNE of Inyokern, CA · 16395 days ago · 3 km deep · 83 km away
  15. 1.730km ESE of Johannesburg, CA · 16395 days ago · 5 km deep · 83 km away
  16. 2.317km NNE of Inyokern, CA · 16395 days ago · 4 km deep · 83 km away
  17. 1.717km NNE of Inyokern, CA · 16395 days ago · 7 km deep · 84 km away
  18. 1.926km E of Coso Junction, CA · 16394 days ago · 0 km deep · 77 km away
  19. 2.417km N of Ridgecrest, CA · 16393 days ago · 2 km deep · 76 km away

Before

  1. 1.514km E of Coso Junction, CA · 16454 days ago · 4 km deep · 88 km away
  2. 1.516km NE of Coso Junction, CA · 16454 days ago · 4 km deep · 92 km away
  3. 1.715km NE of Inyokern, CA · 16454 days ago · 4 km deep · 83 km away
  4. 1.814km NE of Inyokern, CA · 16459 days ago · -1 km deep · 84 km away
  5. 1.513km NNE of Inyokern, CA · 16459 days ago · -1 km deep · 85 km away
  6. 2.06km ESE of Coso Junction, CA · 16468 days ago · -1 km deep · 97 km away
  7. 1.713km E of Little Lake, CA · 16469 days ago · 5 km deep · 85 km away
  8. 1.913km ENE of Little Lake, CA · 16469 days ago · 0 km deep · 86 km away
  9. 2.16km E of Coso Junction, CA · 16469 days ago · -1 km deep · 97 km away
  10. 1.67km E of Coso Junction, CA · 16470 days ago · 7 km deep · 96 km away
  11. 1.715km NNE of Inyokern, CA · 16470 days ago · 0 km deep · 84 km away
  12. 1.79km ESE of Coso Junction, CA · 16473 days ago · 3 km deep · 93 km away
  13. 2.330km NNW of Barstow, CA · 16473 days ago · -1 km deep · 89 km away
  14. 1.56km E of Coso Junction, CA · 16477 days ago · 8 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci522652. Read Wed, Sep 23, 2026, 2:06 PM UTC.