Arkansas earthquakes

M2.0 earthquake 5 km NE of Greenbrier, Arkansas

A magnitude 2.0 earthquake struck 5 km NE of Greenbrier, Arkansas on Tue, Mar 15, 2011, 6:30 AM CDT (11:30 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M2.2 2 km S of Greenbrier, Arkansas. 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
2.0 (md), micro
Local time
UTC
2011-03-15 11:30:19 UTC
Depth
5.8 km (3.6 mi), shallow
Epicenter
35.270° N, 92.344° 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 0.8 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.20
Depth from
From location
Station coverage gap
169°
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 200.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nm608677. Read Tue, Sep 22, 2026, 10:30 PM UTC.