World Tsunami Awareness Day and the UN office that leads it
Background
World Tsunami Awareness Day falls on 5 November every year. The United Nations General Assembly designated the day in December 2015 through resolution A/RES/70/203. The theme for 2026 is 'Be tsunami ready: Resilience starts with you'. The observance is facilitated by the UN Office for Disaster Risk Reduction, known as UNDRR, working with the rest of the UN system. The day was the idea of Japan, which has built up long experience of tsunami early warning and of rebuilding after a disaster. The day is tied to the Sendai Framework for Disaster Risk Reduction 2015-2030, the fifteen-year global agreement adopted in March 2015 whose main aim is a large cut in deaths from disasters. For India, tsunami early warnings come from the Indian National Centre for Ocean Information Services at Hyderabad, an institution under the Ministry of Earth Sciences.
In plain words
UNDRR United Nations Office for Disaster Risk Reduction — The UN office that coordinates disaster risk reduction work and oversees the Sendai Framework.
Sendai Framework Sendai Framework for Disaster Risk Reduction 2015-2030 — The global agreement on reducing disaster risk, adopted at Sendai in Japan in 2015.