Oklahoma earthquakes

M3.7 earthquake 5 km WNW of Lucien, Oklahoma

A magnitude 3.7 earthquake struck 5 km WNW of Lucien, Oklahoma on Sat, Apr 7, 2018, 7:23 AM CDT (12:23 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M4.6 8 km NNE of Marshall, Oklahoma. This one was a foreshock.

Covington forecastMore in Oklahoma

Map

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

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The earthquake

Magnitude
3.7 (ml), minor
Local time
UTC
2018-04-07 12:23:23 UTC
Depth
7.3 km (4.5 mi), shallow
Epicenter
36.287° N, 97.509° W
Region
Oklahoma
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
2419.0% of gravity
Peak ground velocity
0.4 cm/s
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

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 1.0 km horizontally, 4.7 km in depth
Station coverage gap
25°
Stations used
0

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 108 in the 60 days after this one and 56 in the 30 days before it.

After

The first 60 of 108.

Before

Earthquakes todayOklahoma earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000dw3j. Read Tue, Sep 22, 2026, 2:58 AM UTC.