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.
2011 Virginia earthquake damage was reported. Tremors from the earthquake were also felt in eastern Canada, mostly in Southern Ontario, as well as in parts of southern Quebec and the Maritime provinces. In Ontario, a few buildings in Toronto were evacuated, and roads were closed as a precautionary measure in case of building collapse in Sudbury and Windsor. The year 2011 is the second consecutive year in which an earthquake was widely felt in Southern Ontario and Quebec, the previous being the June 2010 Central Canada earthquake that also affected that region. The USGS "Did you feel it?" citizen-based earthquake intensity website received