evocation sonic 

Traditions occult, primal

Cast [>>] somatic, verbal

Range 30 feet; Targets 1 unattended object

A high-frequency sonic attack shatters a nearby object. You deal 2d10 sonic damage to the object, ignoring the object's Hardness if it is 4 or lower.

Heightened (+1) The damage increases by 1d10, and the Hardness the spell ignores increases by 2.

Core Rulebook, page 368.