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.
1923 Great Kantō earthquake committed In the wake of the earthquake against thousands of ethnic Korean civilians (Zainichi) and Japanese socialists. The murders were carried out by right-wing groups such as elements of the Imperial Japanese Army, police and vigilantes in Tokyo and Yokohama. This earthquake devastated Tokyo, the port city of Yokohama, and the surrounding prefectures of Chiba, Kanagawa, and Shizuoka, and caused widespread damage throughout the Kantō region. The earthquake's force was so great that in Kamakura, over from the epicenter, it moved the Great Buddha statue, which weighs about , almost two feet. Estimated casualties totaled about 142,800 deaths, including about