Oklahoma earthquakes

M1.9 earthquake 2 km E of Hennessey, Oklahoma

A magnitude 1.9 earthquake struck 2 km E of Hennessey, Oklahoma on Wed, Dec 26, 2018, 4:46 AM CST (10:46 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.1 5 km ESE of Cleo Springs, Oklahoma. This one was a foreshock.

Hennessey 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
1.9 (mb_lg), micro
Local time
UTC
2018-12-26 10:46:00 UTC
Depth
4.6 km (2.9 mi), shallow
Epicenter
36.112° N, 97.869° W
Region
Oklahoma
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 0.7 km horizontally, 4.7 km in depth
Magnitude uncertainty
±0.23
Station coverage gap
36°
Stations used
86

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 87 in the 60 days after this one and 38 in the 30 days before it.

After

The first 60 of 87.

Before

Earthquakes todayOklahoma earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000ixnt. Read Tue, Sep 22, 2026, 5:58 AM UTC.