Oklahoma earthquakes

M2.6 earthquake 3 km SSE of Union City, Oklahoma

A magnitude 2.6 earthquake struck 3 km SSE of Union City, Oklahoma on Sat, Mar 20, 2021, 3:05 PM CDT (20:05 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M3.3 11 km W of Hennessey, Oklahoma. This one was a foreshock.

Union City 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
2.6 (ml), micro
Local time
UTC
2021-03-20 20:05:28 UTC
Depth
7.3 km (4.5 mi), shallow
Epicenter
35.361° N, 97.930° W
Region
Oklahoma
Felt reports
2
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

2 people reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Magnitude uncertainty
±0.26
Station coverage gap
56°
Stations used
99

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 75 in the 60 days after this one and 68 in the 30 days before it.

After

The first 60 of 75.

Before

Earthquakes todayOklahoma earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ok2021foba (also filed as us7000dlac). Read Tue, Sep 22, 2026, 8:59 PM UTC.