Oklahoma earthquakes

M4.0 earthquake 3 km WNW of Shattuck, Oklahoma

A magnitude 4.0 earthquake struck 3 km WNW of Shattuck, Oklahoma on Tue, May 25, 2021, 1:24 PM CDT (18:24 UTC), 8 km (5 mi) below the surface.

Shattuck forecast More in Oklahoma

Map

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

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The earthquake

Magnitude: 4.0 (mwr), light
Local time: Tue, May 25, 2021, 1:24 PM CDT
UTC: 2021-05-25 18:24:57 UTC
Depth: 7.7 km (4.8 mi), shallow
Epicenter: 36.286° N, 99.915° W
Region: Oklahoma
Felt reports: 108
Strongest shaking: V, moderate 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: V, moderate shaking
Peak ground acceleration: 19.4% of gravity
Peak ground velocity: 1.3 cm/s
Map: Automatic

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

Did you feel it?

108 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: Normal
Moment magnitude: 4.1 Mwr
Nodal plane 1: Strike 267°, dip 50°, rake -81°
Nodal plane 2: Strike 73°, dip 41°, rake -101°

How well it is located

Reviewed by a seismologist.

Station coverage gap: 136°
Stations used: 62

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 77 in the 60 days after this one and 7 in the 30 days before it.

After

The first 60 of 77.

Before

Earthquakes today Oklahoma earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ok2021kemx (also filed as us7000e66b, tx2021kemx). Read Tue, Sep 22, 2026, 9:25 PM UTC.