Earthquake was an evocation or alteration spell that unleashed a powerful but localized tremor.[4][5][6][7][8]


The effect of the tremor depended on the type of terrain it was cast in, so a cavern would collapse and damage those caught in the collapse where heavily damaged. Areas with structures or woods would cause damage to the structures and trees,[4][8] and a swamp would have its water drained.[7][6]


Only vocal and somatic components[7] and a pinch of dust, piece of rock and a lump of clay where needed for the casting of this spell.[8]