Le danger nucléaire au Japon. Solidarity & Helping initiatives. International reactions. Environnement. Economic impact. Earthquakes and Japan. Why the Earth Quakes ? Videos. Pictures. Live. Japon. 2011 Sendai earthquake and tsunami. The 2011 earthquake off the Pacific coast of Tōhoku (東北地方太平洋沖地震, Tōhoku-chihō Taiheiyō Oki Jishin) was a magnitude 9.0–9.1 (Mw) undersea megathrust earthquake off the coast of Japan that occurred at 14:46 JST (05:46 UTC) on Friday 11 March 2011,[4][9][10] with the epicentre approximately 70 kilometres (43 mi) east of the Oshika Peninsula of Tōhoku and the hypocenter at an underwater depth of approximately 29 km (18 mi).[4][11] The earthquake is often referred to in Japan as the Great East Japan Earthquake (東日本大震災, Higashi nihon daishinsai)[12][13][fn 1] and is also known as the 2011 Tōhoku earthquake,[28] and the 3.11 earthquake.
Early estimates placed insured losses from the earthquake alone at US$14.5 to $34.6 billion.[53] The Bank of Japan offered ¥15 trillion (US$183 billion) to the banking system on 14 March in an effort to normalize market conditions.[54] The World Bank's estimated economic cost was US$235 billion, making it the costliest natural disaster in history.[55][56] Japan.