November 5 is observed every year as Tsunami Awareness Day across the world. The day focuses on teaching people about the dangers of tsunamis and how to stay safe if one occurs. Authorities highlight the need for early warning systems, evacuation plans, and safety drills to reduce loss of life and protect property.
Communities living near the coast are encouraged to stay alert and learn how to act quickly during emergencies.

For generations, coastal communities have learned to recognize natural warning signs of tsunamis. This traditional knowledge becomes especially important in places that do not have modern technology or alert systems.
People have observed changes such as unusual animal behavior or sudden shifts in the sea that signal danger. These observations have helped communities respond early and avoid harm.

Many animals are known to react before a tsunami arrives. Elephants, dogs, birds, snakes, and even small animals in the ground may show signs of fear or leave the area. Researchers say animals may sense vibrations, magnetic changes, or gases underground that humans cannot detect.

During the 2004 Indian Ocean tsunami, very few animals were reported to have died in places like Sri Lanka’s Yala National Park. Eyewitnesses said many animals moved to higher ground long before the waves hit. This suggests that observing animal behavior can help warn communities in time.

Experts say these natural clues can support modern tsunami warning systems, especially in remote coastal areas.

Another key traditional warning sign is when the sea suddenly pulls back, exposing the seabed. This unusual retreat has long been taught in local stories, such as the “Smong” legend in Indonesia, which advises people to run to higher ground immediately when this happens.

People in coastal regions also pay attention to unusual sounds coming from the ocean, such as a loud roar like a train or a plane. Changes in the weather, sudden calmness, or strange cloud colors may also signal trouble.

Experts say that while technology is important, traditional observations remain a strong part of tsunami preparedness. Communities that stay aware of both natural warning signs and official alerts are better protected.

On Tsunami Awareness Day, the message is clear: Understanding nature, staying alert, and preparing together can save lives.