A second earthquake is now happening. Aftershock. Oddly enough, the aftershock is more unnerving.
It was a 4.6.
I’m still groggy, I’m still not sure, but we may have had a significant earthquake here in St. Louis. More when I have more info.
update There was an earthquake, with a magnitude of 5.4 5.2, in Illinois, approximately 204 km (127 miles) from St. Louis.