Oklahoma earthquakes

M1.7 earthquake 14 km SSW of Loyal, Oklahoma

A magnitude 1.7 earthquake struck 14 km SSW of Loyal, Oklahoma on Mon, Mar 1, 2021, 7:56 AM CST (13:56 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M1.9 15 km SSW of Loyal, Oklahoma. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
1.7 (ml), micro
Local time
UTC
2021-03-01 13:56:24 UTC
Depth
6.6 km (4.1 mi), shallow
Epicenter
35.855° N, 98.196° 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.

Magnitude uncertainty
±0.16
Station coverage gap
105°
Stations used
48

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 121 in the 60 days after this one and 78 in the 30 days before it.

After

The first 60 of 121.

Before

Earthquakes todayOklahoma earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ok2021eewh. Read Tue, Sep 22, 2026, 11:32 AM UTC.