恩賜上野動物園
The 2011 Tōhoku earthquake and tsunami on 11 March 2011 resulted in power being cut off to the aquarium. Many fish died, but some marine mammals and sea birds were subsequently transferred to Kamogawa Sea World, to the south, Ueno Zoo , Tokyo Sea Life Park, Kamogawa Sea World, Izu Mito Sea Paradise, and Enoshima Aquarium. Although the main building sustained only minor damage, outside pools were washed away, and there was major damage to the electrical system (causing the death of about 90% of the animals in the aquarium). The facility was closed after the tsunami, and reopened to the public on 15 July 2011, following restoration.