Talk:Earthquake Spell/@comment-31511049-20170313135115

After reading Theawsomsaus posting below, I extrapolated and collated the following info from numerous sources:

EQ = Earthquake EQLv = Level of EQ spell (From game: Earthquake I = 14%, II = 17%, III = 21%, IV = 25%) Dmg = Damage Dmg% = Damage as a percentage HP = Hitpoints N = Number of EQ spells used
 * 1) EQ = Number of EQ spells

For buildings (not walls): EQLv    Dmg     Dmg% I      1/7        14.3% II     1/6        16.7% III    1/5        20% IV    1/4        25%

Damage is a fraction of the original buildings hitpoints, it is not calculated on remaining HP, as seen by attacking an Air Defense with 2 Lightning and 1 Earthquake, you can apply the quake first or last and it will still destroy the AD.

Use of multiple Earthquake spells: They follow the formula, Dmg% of Nth spell = Dmg% of EQLv / (2N - 1)

ie. for multiple level 2 Earthquake spells: #EQ    2N-1    Dmg% 1st      1      17% 2nd      3      17%/3 = 5.7% 3rd      5      17%/5 = 3.4% 4th      7      17%/7 = 2.4% 5th      9      17%/9 = 1.9% 6th      11     17%/11 = 1.6% 7th      13     17%/13 = 1.3% 8th      15     17%/15 = 1.1%

eg. two level 2 EQ spells and a level 3 EQ spell in the clan castle vs a level 6 Air Defense (HP = 1050) 1st EQLv II = 17% of 1050 approx 179 hp damage 2nd EQLv II = 17% / 3 of 1050 approx 60 hp damage 3rd EQLv III = 21% / 5 of 1050 approx 44 hp damage

For walls: The spell description has often been misread as doing x4 damage to walls, this is not the case, it does increasing damage to walls and 4 of any level EQ spell will destroy any and all walls in spell radius. I haven't been able to verify yet but I think the increasing damage of multiple EQ spells to walls will be the inverse of the above decreasing damage to buildings.