M1.6 earthquake 6 km NNE of Loyal, Oklahoma

A magnitude 1.6 earthquake struck 6 km NNE of Loyal, Oklahoma on Sun, Oct 20, 2019, 4:35 AM CDT (09:35 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M1.9 11 km ESE of Hennessey, Oklahoma. This one was a foreshock.

Map

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

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 200.

From the USGS Earthquake Hazards Program and its partner networks, event ok2019uofw. Read Tue, Sep 22, 2026, 5:19 PM UTC.