Earthquake

Caster Level: Cleric 8, Druid 9
Innate Level: 9
School: Evocation
Components: V,S
Range: Long
Save: Reflex ½
Spell Resistance: No
Area of Effect: Colossal
Duration: Instant
Additional Counterspells: None
Description: The caster causes a massive earthquake around himself, causing 1d6 points of bludgeoning damage per caster level (to a maximum of 20d6) to all enemies in the area of effect, ignoring spell resistance. Creatures must also make a reflex save or be knocked down for 1 round.