World Tsunami Awareness Day is observed annually on November 5 to raise awareness about the risks posed by tsunamis and the importance of early warning systems, evacuation planning and disaster preparedness.
The observance is particularly relevant to coastal communities, where tsunamis can cause widespread destruction within minutes of reaching the shore.
For students, the day serves as an opportunity to understand natural warning signs and learn how timely action can save lives.
The theme for World Tsunami Awareness Day 2026 is “Be Tsunami Ready: Resilience Starts With You.”
According to the United Nations Office for Disaster Risk Reduction (UNDRR), the theme highlights the importance of individual and community preparedness.
It encourages people to recognise natural warning signs, identify evacuation routes, participate in emergency drills and support vulnerable members of their communities.
The campaign also calls upon schools and educational institutions to incorporate tsunami awareness into learning activities and organise evacuation exercises.
The United Nations General Assembly designated November 5 as World Tsunami Awareness Day in December 2015. The first observance took place in 2016.
The initiative was proposed by Japan, a country with extensive experience in managing tsunami risks.
The date is associated with the Japanese story of Inamura-no-hi, which dates back to November 5, 1854. According to the story, a villager set fire to harvested rice sheaves to warn people of an approaching tsunami and encourage them to move to higher ground.
The devastating Indian Ocean tsunami of December 26, 2004, which claimed more than 230,000 lives across 14 countries, also highlighted the importance of international cooperation in tsunami monitoring and preparedness.
A tsunami is a series of powerful ocean waves generated by the sudden displacement of a large volume of water.
Underwater earthquakes are a major cause, although volcanic eruptions and landslides can also trigger tsunamis.
Unlike ordinary sea waves, tsunamis can travel across entire ocean basins and cause severe flooding when they reach coastal areas.
Importantly, the first tsunami wave is not necessarily the largest. Dangerous waves and currents can continue for several hours.
1. Recognise the natural warning signs
Strong or prolonged earthquake shaking, a sudden rise or withdrawal of seawater, or an unusual roaring sound from the ocean may indicate an approaching tsunami.
Students living in or visiting coastal areas should learn to recognise these signs.
2. Move immediately to higher ground
If natural warning signs appear, students should move away from the shoreline towards higher ground or farther inland.
They should not wait for an official warning if there is an immediate natural indication of danger.
3. Know the evacuation routes
Students should familiarise themselves with designated evacuation routes at their schools, homes and other frequently visited locations.
Schools in coastal regions can conduct regular evacuation drills to help students understand how to reach safer areas.
4. Never return to the beach to watch the waves
A sudden withdrawal of seawater may expose parts of the seabed, but this is a warning sign rather than an opportunity to explore.
Students should never approach the shore to photograph or watch an approaching tsunami.
They must remain away from coastal areas until authorities issue an official all-clear.
5. Prepare an emergency plan
Families and schools should identify safe meeting points and keep essential emergency supplies ready.
Students should also know how to contact family members during emergencies and understand the importance of helping younger children and others who may require assistance, without delaying their own evacuation.
India's extensive coastline makes disaster preparedness an important part of public safety education.
The 2004 Indian Ocean tsunami affected several coastal areas, including Tamil Nadu, Andhra Pradesh and the Andaman and Nicobar Islands.
India subsequently strengthened its tsunami monitoring and warning capabilities through the Indian Tsunami Early Warning Centre, operated by the Indian National Centre for Ocean Information Services (INCOIS), Hyderabad.
However, early warning technology is only one part of disaster preparedness. People must also understand the warnings and know how to respond.
World Tsunami Awareness Day 2026 reinforces this message: while tsunamis cannot be prevented, awareness, preparation and timely evacuation can significantly reduce their impact.