I could feel vibrations from this bright circular light hovering above us!

Me and my family were leaving to church at 9pm. My father was the first out the door, and as he walked out he sudenly stoped. I was right behind him and I saw an object in the sky that I could compare in size to what a full moon looks like. The circular object was hubering above us moving slowly. The circular object was emiting a bright white glow that iluminated the floor. The light would turn off and then turn back on in a different spot. It did this twice before it left at a very high speed and left a trail which I belive was just the bright light it was emiting. When the object was right above us it felt like vibrations similar to what u feel when u stand in front of a woofer with base, the only diference was that this light had no sound. When I arrived to church, other people from close by towns saw a similar object. To this day I am still not sure of what it was. When I tell this to my friends most of them laugh or think I made it up, but it was one of those things that I just couldn't explain!
Date is approximate.  Witness elects to remain semi-anonymous.  PD