If «Earthquake Upgrades»: If «Cracking Fissure»: an effect-defined number Cracking Fissure: Earthquake is X% larger. If «Lingering Reverberations»: an effect-defined number Lingering Reverberations: Earthquake lasts X sec longer. If «Violent Tremors»: an effect-defined number Violent Tremors: Earthquake's damage is increased by X%, or by X% if it damages only one enemy. If «Earthen Resonance»: an effect-defined number Earthen Resonance: Your Intellect is increased by 10% for each Earthquake you have active. If «Might of the Worldsplitter»: Might of the Worldsplitter: Whenever Earthquake knocks an enemy down, you generate 12 Maelstrom. If «Shake the Foundations»: Shake the Foundations: Casting Earthquake automatically casts Chain Lightning at X random X:enemies; in the Earthquake. If «Unstable Terrain»: Unstable Terrain: Earthquake reduces enemies' movement speed by X%. If «Mountains Will Fall»: Mountains Will Fall: Your Mastery now affects Earthquake, allowing it to cause an Elemental Overload. If «Tectonic Storm»: Tectonic Storm: Chain Lightning always causes an Elemental Overload against enemies standing in your Earthquake. If «Totemic Slam»: Totemic Slam: Whenever you summon a Totem, it causes an Earthquake at its location.