With a shout, you strike the ground at your feet and create a bolt of seismic force that causes earth, rock, and sand to fly into the air, striking creatures along its path.

Any creatures caught in the spell's area take 1d6 points of damage per caster level (maximum 10d6).

This spell functions only if you are standing on dirt, clay, sand, or stone (including stone floors), not on wooden floors or other surfaces.