The explosion vastly surpassed any attack that the Dragon Emperor had unleashed against Rui prior to the battle. The sheer intensity of the attack crushed any hopes that the environmental damage done to the ocean floor was something that would be temporary.
RUMBLE!!!!!
The tsunamis that the explosion released created greater torrents of water than any other that the Dragon Emperor had ever created in the battle. Titanic tsunamis that reached the skies emerged from the Great Void Ocean, threatening to destroy everything.
If not for the most powerful pathwalkers and an already prepared oceanographic containment technological system, the tsunamis had the power to wipe out all life in the world. The shockwaves that spread through the ocean were so intense that even the Great Serpent Jormungandr had to use his authority to deploy his quasi-Transcendent monsters to stop the shockwaves from destroying everything.