I live right in ST.Louis and it woke me and my boyfriend up this morning. At first I thought it was a big wind blowing through cuz it only lasted for like 5 seconds. I felt the aftershock about 10 minutes ago. The after shock was a 4.7!!!!
I was up late last night doing work, and I felt everything shake, BUT I thought it was just the wind! I live in a high rise, and when it's really windy, the building creaks. It was the first time I felt shaking, so I thought it was just really, really strong wind!