Nebraska earthquakes

M2.3 earthquake 1 km WNW of Arnold, Nebraska

A magnitude 2.3 earthquake struck 1 km WNW of Arnold, Nebraska on Thu, Jun 21, 2018, 12:39 AM CDT (05:39 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.1 5 km SE of Arnold, Nebraska. This one was a foreshock.

Arnold forecastMore in Nebraska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.3 (mb_lg), micro
Local time
UTC
2018-06-21 05:39:39 UTC
Depth
5.0 km (3.1 mi), shallow
Epicenter
41.431° N, 100.212° W
Region
Nebraska
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 4.6 km horizontally, 1.7 km in depth
Magnitude uncertainty
±0.14
Depth from
Operator assigned
Station coverage gap
68°
Stations used
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 4.15 km SE of Arnold, Nebraska · 3006 days ago · 5 km deep · 7 km away · felt by 47
  2. 2.77 km SE of Arnold, Nebraska · 3005 days ago · 5 km deep · 9 km away · felt by 3
  3. 3.79 km SE of Arnold, Nebraska · 3005 days ago · 5 km deep · 12 km away · felt by 5
  4. 3.98 km SE of Arnold, Nebraska · 3005 days ago · 5 km deep · 10 km away · felt by 41
  5. 3.82 km SE of Arnold, Nebraska · 3004 days ago · 5 km deep · 4 km away · felt by 8
  6. 2.78 km SE of Arnold, Nebraska · 3003 days ago · 5 km deep · 10 km away · felt by 2
  7. 3.65 km ESE of Arnold, Nebraska · 3002 days ago · 3 km deep · 7 km away · felt by 6
  8. 2.48 km SSE of Arnold, Nebraska · 3001 days ago · 5 km deep · 10 km away · felt by 2
  9. 2.47 km S of Arnold, Nebraska · 2992 days ago · 5 km deep · 9 km away · felt by 3
  10. 2.811 km SE of Arnold, Nebraska · 2990 days ago · 5 km deep · 13 km away · felt by 13
  11. 2.04 km SE of Arnold, Nebraska · 2981 days ago · 5 km deep · 6 km away · felt by 5
  12. 3.67 km SE of Arnold, Nebraska · 2980 days ago · 1 km deep · 9 km away · felt by 8
  13. 2.74 km E of Arnold, Nebraska · 2960 days ago · 5 km deep · 6 km away · felt by 3

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000ey7s. Read Tue, Sep 22, 2026, 5:16 AM UTC.