Thunderous Eruption

A sudden, booming sound erupts around you. 

Each creature - excluding yourself - in a 20-foot-radius sphere centered on you must make a Constitution saving throw. A target takes 8d6 thunder damage on a failed save, or half as much damage on a successful one. On a failed save the creature is also deafened for one round. A creature made of inorganic material such as stone, crystal or metal has disadvantage on the saving throw. 

A nonmagical object that isn't being worn or carried also takes the damage if it is in the spells area.

The sound can be heard for creatures up to 10-feet away. 

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.