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 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 (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 70 km east of the Oshika Peninsula of Tōhoku and the hypocenter at an underwater depth of approximately 29 km .
Relevant evidence: Yes