M2.6 earthquake 6 km SE of Arnold, Nebraska
A magnitude 2.6 earthquake struck 6 km SE of Arnold, Nebraska on Mon, Aug 20, 2018, 6:34 PM CDT (23:34 UTC), 5 km (3 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.6 (mb_lg), micro
- Local time
- UTC
- 2018-08-20 23:34:56 UTC
- Depth
- 5.0 km (3.1 mi), shallow
- Epicenter
- 41.383° N, 100.143° W
- Region
- Nebraska
- Felt reports
- 4
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
4 people reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 2.5 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- Operator assigned
- Station coverage gap
- 61°
- Stations used
- 15
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 3 in the 30 days before it.
After
- 2.67 km WSW of Arnold, Nebraska · 2944 days ago · 5 km deep · 12 km away
- 2.513 km WNW of Callaway, Nebraska · 2936 days ago · 8 km deep · 8 km away
- 2.68 km SE of Arnold, Nebraska · 2936 days ago · 5 km deep · 2 km away · felt by 2
Before
Earthquakes todayNebraska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000ge9f. Read Tue, Sep 22, 2026, 4:22 AM UTC.