Arkansas earthquakes

M2.2 earthquake 3 km ENE of Greenbrier, Arkansas

A magnitude 2.2 earthquake struck 3 km ENE of Greenbrier, Arkansas on Thu, Apr 7, 2011, 7:20 PM CDT (00:20 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M2.9 2 km NE of Greenbrier, Arkansas. This one was a foreshock.

Greenbrier forecastMore in Arkansas

Map

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

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The earthquake

Magnitude
2.2 (md), micro
Local time
UTC
2011-04-08 00:20:54 UTC
Depth
4.4 km (2.7 mi), shallow
Epicenter
35.240° N, 92.350° W
Region
Arkansas
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 0.5 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
91°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 130 in the 60 days after this one and 69 in the 30 days before it.

After

The first 60 of 130.

Before

Earthquakes todayArkansas earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nm608772. Read Tue, Sep 22, 2026, 9:04 PM UTC.