M1.9 earthquake 16 km E of Red Rock, Oklahoma

A magnitude 1.9 earthquake struck 16 km E of Red Rock, Oklahoma on Mon, Oct 11, 2021, 7:32 PM CDT (00:32 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.0 9 km ESE of Jefferson, Oklahoma. This one was a foreshock.

Map

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

2 people reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 58 in the 60 days after this one and 36 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event ok2021tyxw (also filed as us6000ftvd). Read Tue, Sep 29, 2026, 10:22 PM UTC.