The large earthquake and resulting tsunami that struck Japan on March 11, 2011 (also called the Tohoku earthquake or Great East Japan earthquake).
東日本大震災は2011年3月11日に発生し、多くの被害を出した。
The Great East Japan earthquake occurred on March 11, 2011 and caused extensive damage.
毎年、被災地では東日本大震災の追悼式が行われる。
Each year, memorial services for the Great East Japan earthquake are held in the affected areas.
東日本大震災の経験が、災害対策を見直すきっかけになった。
The experience of the Great East Japan earthquake prompted a review of disaster preparedness measures.