2011 Tohoku Earthquake

2011 Tohoku Earthquake

About 2011 Tohoku Earthquake

The 2011 earthquake off the Pacific coast of Tōhoku, often referred to in Japan as the Great East Japan Earthquake, the 2011 Tohoku Earthquake, and the 3.11 Earthquake, was a magnitude 9.0 (Mw) undersea mega-thrust earthquake off the coast of Japan that occurred at 14:46 JST (05:46 UTC) on Friday 11 March 2011. It had an epicentre approximately 70 kilometers (43 mi) east of the Oshika Peninsula of Tōhoku and the hypocenter at an underwater depth of approximately 30 km (19 mi). It was the most powerful known earthquake ever to have hit Japan, and the fifth most powerful earthquake in the world since modern record-keeping began in 1900.The earthquake triggered powerful tsunami waves that reached heights of up to 40.5 meters (133 ft) in Miyako in Tōhoku's Iwate Prefecture, and which, in the Sendai area, travelled up to 10 km (6 mi) inland. The earthquake moved Honshu (the main island of Japan) 2.4 m (8 ft) east and shifted the Earth on its axis by estimates of between 10 cm (4 in) and 25 cm (10 in).