World Tsunami Awareness Day is observed on 5 November to raise awareness about tsunami among millions of people living in low lying coastal areas and small islands. The term ‘Tsunami’ is a Japanese term which means “harbour wave”. A tsunami is a series of giant waves caused by earthquakes or undersea volcanic eruptions and underwater landslides. Tsunami waves can travel at the speed of 800 km/hour and its height can be 20 feet to 300 feet. The speed of tsunami waves depends on the depth of the ocean. The speed of tsunami is fast in deep water while slow down when reaching shallow waters. Worth to mention that around 80% of tsunamis occur in the Pacific Ocean. The deadliest Tsunami ever was recorded in the Indian Ocean in December 2004. It caused an estimated 2.27 lac deaths in 14 countries including India, Sri Lanka, Thailand, and Indonesia. After the 2004 deadliest Tsunami in the Indian Ocean; The United Nations General Assembly designated 5 November as World Tsunami Awareness Day from December 2015. The basic motive of this day is to increase the awareness about the Tsunami among over 700 million people live in low-lying coastal areas and Small Islands. This year’s observance promotes the “Sendai Seven Campaign,” target (e). This theme focuses on reducing disaster damage to critical infrastructure and the disruption of basic services. The United Nations wants to increase the use of early warning systems, resilient infrastructure, educate people to save and protect their assets against tsunami risk in the future.