In Illinois, most everyone knows what to do when a tornado hits, but what about an earthquake?
That's why the state is participating in the international great shake-out drill.
Thursday, October 17th, an "earthquake" will hit Illinois at precisely 10:17 a.m.
During that time, residents are urged to practice the "Drop, Cover and Hold On" procedure.
"Drop" down to the floor, take "Cover" under a sturdy desk or table, and "Hold On" until the shaking stops.
In all, the drill will last two minutes.
If you would like to find out more about the drill, you can visit shakeout.org/centralus.