Question: Who is recognized as a hero for his actions in the aftermath of a megathrust earthquake off the coast of Japan that occurred at 14:46 JST (05:46 UTC) on Friday 11 March 2011?
Sentence (from "2011 Tōhoku earthquake and tsunami"): The earthquake is often referred to in Japan as the Great East Japan Earthquake (東日本大震災 , Higashi nihon daishinsai ) and is also known as the 2011 Tōhoku earthquake, and the 3.11 earthquake.
Relevant evidence: No