M3.7 earthquake 9 km SE of Arnold, Nebraska
A magnitude 3.7 earthquake struck 9 km SE of Arnold, Nebraska on Sun, Jul 1, 2018, 3:12 AM CDT (08:12 UTC), 5 km (3 mi) below the surface.
A larger quake followed: M3.9 8 km SE of Arnold, Nebraska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.7 (mwr), minor
- Local time
- UTC
- 2018-07-01 08:12:17 UTC
- Depth
- 5.0 km (3.1 mi), shallow
- Epicenter
- 41.358° N, 100.113° W
- Region
- Nebraska
- Felt reports
- 5
- Strongest shaking
- IV, light shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- IV, light shaking
- Peak ground acceleration
- 3361.0% of gravity
- Peak ground velocity
- 0.6 cm/s
- Map
- Automatic
Did you feel it?
5 people reported to the USGS what they felt; the strongest reported shaking was V, moderate shaking.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Strike-slip
- Moment magnitude
- 3.7 Mwr
- Nodal plane 1
- Strike 175°, dip 71°, rake -22°
- Nodal plane 2
- Strike 272°, dip 69°, rake -160°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 2.6 km horizontally, 1.7 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- Operator assigned
- Station coverage gap
- 93°
- Stations used
- 39
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
- 3.98 km SE of Arnold, Nebraska · 3004 days ago · 5 km deep · 1 km away · felt by 41
- 3.82 km SE of Arnold, Nebraska · 3003 days ago · 5 km deep · 7 km away · felt by 8
- 2.78 km SE of Arnold, Nebraska · 3003 days ago · 5 km deep · 2 km away · felt by 2
- 3.65 km ESE of Arnold, Nebraska · 3002 days ago · 3 km deep · 5 km away · felt by 6
- 2.48 km SSE of Arnold, Nebraska · 3000 days ago · 5 km deep · 3 km away · felt by 2
- 2.47 km S of Arnold, Nebraska · 2992 days ago · 5 km deep · 5 km away · felt by 3
- 2.811 km SE of Arnold, Nebraska · 2990 days ago · 5 km deep · 2 km away · felt by 13
- 2.04 km SE of Arnold, Nebraska · 2981 days ago · 5 km deep · 5 km away · felt by 5
- 3.67 km SE of Arnold, Nebraska · 2980 days ago · 1 km deep · 3 km away · felt by 8
- 2.74 km E of Arnold, Nebraska · 2959 days ago · 5 km deep · 7 km away · felt by 3
- 2.66 km SE of Arnold, Nebraska · 2954 days ago · 5 km deep · 4 km away · felt by 4
Before
Earthquakes todayNebraska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000fsuc. Read Mon, Sep 21, 2026, 6:44 PM UTC.