Arkansas earthquakes

M3.9 earthquake 2 km ESE of Guy, Arkansas

A magnitude 3.9 earthquake struck 2 km ESE of Guy, Arkansas on Sat, Nov 20, 2010, 1:06 PM CST (19:06 UTC), 4 km (3 mi) below the surface.

Guy forecast More in Arkansas

Map

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

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The earthquake

Magnitude: 3.9 (mw), minor
Local time: Sat, Nov 20, 2010, 1:06 PM CST
UTC: 2010-11-20 19:06:35 UTC
Depth: 4.5 km (2.8 mi), shallow
Epicenter: 35.319° N, 92.303° W
Region: Arkansas
Felt reports: 212
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
Map: Automatic

USGS ShakeMap: estimated shaking intensity around the epicenter — Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

212 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
Nodal plane 1: Strike 195°, dip 90°, rake 170°
Nodal plane 2: Strike 285°, dip 80°, rake 0°

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 0.5 km horizontally, 0.5 km in depth
Magnitude uncertainty: ±0.67
Depth from: From location
Station coverage gap: 50°
Stations used: 19

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.

Earthquakes today Arkansas earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nm607899 (also filed as nm112010q, usp000hpwm). Read Wed, Sep 23, 2026, 3:22 AM UTC.