2011 Tōhoku earthquake and tsunami 2011 Tōhoku earthquake and tsunami The was a magnitude 9.0–9.1 (M) undersea megathrust earthquake off the coast of Japan that occurred at 14:46 JST (05:46 UTC) on Friday 11 March 2011, with the epicentre approximately east of the Oshika Peninsula of Tōhoku and the hypocenter at an underwater depth of approximately . The earthquake is often referred to in Japan as the and is also known as the 2011 Tōhoku earthquake, and the 3.11 earthquake. It was the most powerful earthquake ever recorded in Japan, and the fourth most powerful earthquake in the world since modern record-keeping began in 1900.
Canadian Academy purchased land on Nagamine Heights, the Duke of Gloucester dedicated a boy's dormitory, Gloucester House, named in his honor in May 1929. The Latin Motto of "Scientia Clavis Successus," knowledge is the key to success, was chosen in 1921 as was the school song. The school housed refugees from the Great Kanto Earthquake of 1923. CA remained at the Aotani-cho campus until it closed due to World War Two. The last formal graduation ceremony took place in 1942. The Japanese government seized the school to serve as internment camps for enemy aliens. Only Gloucester House and the principal's house survived