On 11 March 2011, at 14:46:24 JST (05:46:24 UTC), a Mw 9.0–9.1 undersea megathrust earthquake occurred in the Pacific Ocean, 72 km (45 mi) east of the Oshika Peninsula of the Tōhoku region of Japan. It lasted approximately six minutes and caused a tsunami. It is sometimes known in Japan as the "Great East Japan Earthquake Disaster" (東日本大震災, Higashi Nihon Daishinsai), among other names.

Key figuresTheodoric the GreatAlfred the GreatOtto I the GreatAbbas the Great