Boom of Thunder

A bright streak flashes from your pointing finger to a point you choose within range and then blossoms with a low roar into an explosion of thunder. Each creature in a 20-foot-radius sphere centered on that point takes 2d6 thunder damage.

The thunder spreads around corners. It pushes objects in the area that aren't being worn or carried up to 15ft 

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.