World Tsunami Awareness Day – November 5th

World Tsunami Awareness Day


World Tsunami Awareness Day is celebrated around the world on November 5th. This day is celebrated to raise awareness about the dangers of tsunamis around the world.

World Tsunami Awareness Day was Japan’s brainchild, which is why the bitter experience of repetition led to the creation of key expertise in areas such as post – disaster tsunami, public works, and better construction to mitigate future impacts.

Meaning of ‘Tsunami’

Tsunami is a Japanese word.  A tsunami is a series of massive waves caused by earthquakes or underwater volcanic eruptions and underwater landslides.

Due to the tsunami

Tsunami waves are extremely dangerous and usually look like strong walls of water. Strong waves crash on the shore for hours, killing thousands of people. There are many causes for submarine landslides, earthquakes, coastal rock falls, volcanic eruptions or supernatural collisions.

Tsunamis are rare, but can be devastating when they occur. The tsunami is one of the deadliest natural disasters. The 2004 Indian Ocean tsunami killed 227,000 people from 14 countries. In the last 100 years, 58 tsunamis have claimed over 260,000 lives. Tsunamis are common in the Pacific Ocean and Indonesia. However, tsunami risk is very high in many other countries. These countries include:

  • Chile and Peru
  • United States West Coast
  • Japan
  • New Zealand
  • India
  • Italy
  • Morocco
  • Portugal

An earthquake must occur before a tsunami. It is an earthquake activity that causes many explosions in the sea. These eruptions turn into huge waves. As these waves travel inland, they form at higher and higher altitudes. The highest tsunami wave ever recorded was 90+ feet high. It took place in 1958 in Litua Bay, Alaska. There are only five deaths due to low population in the area. In addition to reaching great heights, waves also travel faster than tsunamis. During the tsunami in the Indian Ocean, the waves moved at a speed of 500 mph.

Once a person survives an earthquake before the tsunami, they should avoid the tidal wave and subsequent flood. When a tsunami alert is issued, it is necessary to go higher or inland.

Tsunami waves can travel at speeds of up to 800 kilometers per hour and can range from 20 feet to 300 feet. The speed of waves depends on the depth of the ocean. Tsunamis are very fast in deep water and slow when reaching shallow water. It should be noted that 80% of tsunamis occur in the Pacific Ocean.

Tsunami waves are rare but very deadly. Over the past 100 years, 58 tsunamis have killed more than 2.6 million people or killed an average of 4,600 people per disaster. This death toll made the tsunami the most dangerous natural disaster.

The deadliest tsunami was recorded in December 2004 in the Indian Ocean. More than 2.27 lakh people died in 14 countries, including India, Sri Lanka, Thailand and Indonesia.


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World Tsunami Awareness Day is celebrated to raise awareness about the dangers associated with tsunami and precautions to be taken in the event of a tsunami. As natural disasters do not identify boundaries, the United Nations designated November 5 as World Tsunami Awareness Day and called for global cooperation to increase prevention activities and raise public awareness.

Although a tsunami is rare, its devastating effect can claim the lives of many people. The devastating tsunamis of 2004 and 2011 showed the world how deadly these natural disasters were. It has also been said that most people are not aware of the early signs of a tsunami and the precautions caused by a tsunami or tidal wave.

World Tsunami Awareness Day helps to improve our knowledge and awareness about tsunami and how we should react to such situations. A number of conferences, debates, seminars and quizzes have been organized at national and international levels to create awareness about tsunami disaster.

In the event of a tsunami, the national government should take all necessary steps to guide people in a timely and appropriate manner. Early warning signs can save many lives. They should be relocated to safe places and provided with essential items like food, water and clothes.

Although tsunamis may be delayed by large buildings and mechanical and scientific discoveries, such innovations do not completely protect people from tsunamis. During the 2011 tsunami, several refugee camps were built in the Japanese city of Minmisantiku, 20 meters above sea level. These centers were badly swept away and large populations were swept away. Therefore, international organizations need to be more vigilant and find better preventive measures.



The 2004 Indian Ocean tsunami led the United Nations to implement tsunami warning signs and systems globally. Live data from beneath ocean pressure sensors and GPS installed offshore can help cancel tsunami warning centers or issue alerts more quickly and correctly. For remote tsunamis, real-time monitoring of sea level and earthquakes is important to confirm the occurrence of devastating tsunamis. The public should be warned immediately in such cases. A local tsunami does not allow enough time for warning signals. In such situations people need to act judiciously and react quickly.

Although tsunamis are uncommon, they can be very deadly. During the last 100 years, 58 tsunamis have claimed 260,000 lives, on average 4,600 / -. It overcame all other natural disasters. The deadliest tsunami in the Indian Ocean occurred in December 2004. This has led to an estimated 227,000 deaths in 14 countries including India, Indonesia, Sri Lanka and Thailand.



Many countries hosted events to raise awareness about tsunamis and Organizes educational seminars for the general public to learn about the discussion panel on tsunami and disaster preparedness. The tsunami will only affect coastal communities. If you do not live on the coast, you can still celebrate this day. Some ways to do this are:

  • Know all tsunamis
  • Imagine what you would have done if there was a tsunami
  • Implement a natural disaster emergency plan
  • Watch tsunami movies like The Impossible, Deep Impact, 2012 and The Perfect Storm

When sharing on social media, use #WorldTsunamiAwareness Day



There are two types of tsunami warning: official and natural. Both are important. You cannot get both. Respond immediately to what you get first.

Official tsunami warning

These warnings are broadcast via radio, television and wireless emergency alerts. They can also come through door sirens, officers, text message alerts and telephone notifications.

In India, the Indian Tsunami Early Warning Center, hosted by the Indian National Center for Ocean Information Services (INCOIS) in Hyderabad, is one of the three regional centers of the Indian Ocean Tsunami Warning and Mitigation System (IOTWMS). Links to the web-based bulletin system will be sent via SMS, email, Global Telecommunication System (GTS) and fax, which are common within India and have password access to 24 participating countries.

Natural warnings include:

  • Strong or prolonged earthquake
  • A magnificent roar from the sea (eg train or plane)
  • Unusual ocean behavior (the sea may rapidly raise floodwaters or be wall-like or fall quickly like a very low tide)
  • If you experience one of these natural warnings, then only one, one tsunami can occur.


How do I respond to a tsunami warning?

If you get a tsunami warning:

  • Stay away from water, beaches and waterways.
  • If officials ask you to move, move to a safe place quickly. Follow the escape signs or go as high or inland (away from the water) as possible.
  • If you are in a tsunami danger zone and are receiving a natural warning, a tsunami can occur within minutes:
  • Protect yourself in the event. Drag, cover and hold. Be prepared for an earthquake. Each time the earth moves, falls, covers and catches.
  • Bring the action. Do not wait for official warnings or instructions from officials.
  • As soon as you can safely proceed, quickly move to a safe place. Follow the escape signs or go as high or inland (away from the water) as possible.
  • In the event of earthquake damage, avoid falling power lines and stay away from weak structures.
  • When you’re in a safe place, get more information from social media.
  • If you are on the beach or near the water and feel an earthquake of any size or length, move as fast as you can on high ground or inland (away from the water). If a tsunami is outside the danger zone, you get a warning that you stay there until the authorities tell you.


What should I do after a tsunami?         

  • Stay out of tsunami danger zone until officers are safe. The cancellation of a warning does not mean that an accident has occurred.
  • Avoid any damage or water around any building unless it is safe by a professional or officer.
  • Get updates and security tips from radio, television or your mobile device (text or data).


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November 6, 2020

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