OKLAHOMA CITY, Okla. — Simpson College early-risers may have woken up to an uncharacteristic rocking sensation Saturday morning due to earth tremors stemming from north-central Oklahoma.

The United States Geological Survey said that a 5.6 magnitude earthquake was reported just after 7 a.m. about 8 miles northwest of Pawnee, Oklahama, tying it for the state’s strongest earthquake on record — the first in November 2011.

The earthquake was felt as far away as Dallas and Des Moines. No major damage has been reported.

Twitter users were quick to react:

So earthquake felt in Ok, Tx, Kan, Ark, Iowa, & Neb. On the 1st Saturday of college football. The Gods have spoken, this is the new Big 12.

— Corby Davidson (@corbydavidson) September 3, 2016

That wasn’t an earthquake. It was just Slipknot rehearsing in Iowa. #Earthquake

— Lou Brutus (@LouBrutus) September 3, 2016

Cyclones football followers will understand this: the earthquake we in central Iowa felt this a.m- it was like ‘thunderstruck’

— Randy Peterson (@RandyPete) September 3, 2016

@TheSimpsonAcorn must do a story now on the #GreatIowaEarthquake of 2016.

What did you all feel? Too bad much of @SimpsonCollege = asleep.

— Kedron Bardwell (@KedronBardwell) September 3, 2016

H/t to Kedron Bardwell