John Anthony Tenta ( June 22 , 1963 â `` June 7 , 2006 ) was a Canadian professional wrestler who is best known for wrestling with WWF under the ring names , Earthquake and Golga and World Championship Wrestling ( WCW ) under the ring names , Avalanche and The Shark . John Anthony Tenta ( June 22 , 1963 -- June 7 , 2006 ) was a Canadian professional wrestler , known for his work in the World Wrestling Federation as Earthquake and later Golga , and in World Championship Wrestling as Avalanche and The Shark .