Area of effect: 10m radius sphere. Spell duration is 20s. Movement speed penalty is -40%. Physical resistance check vs. the attacker's spellpower is every 4s (special rank targets only, which includes lieutenant+ ranks and the player's party. No physical resistance check for lower rank targets).
Only works on moving targets (targets standing still are immune).
Earthquake can be cast on creatures or locations not in line of sight. A mage can cast this spell on creatures in a different room when using the overhead view. This allows the mage to stay out of physical harm by staying out of reach of those creatures.