Tsunamis occur most often in the Pacific Ocean and Indonesia. This happens because the Pacific bordering the ocean has a large number of underwater seismic zones. In the meantime, tsunamis have also occurred in the Mediterranean Sea region. A tsunami is also expected to occur in the Caribbean Sea. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essay Very large tsunamis can cause damage to places thousands of kilometers away from the earthquake that caused it. The most dangerous places to be during a tsunami are beaches, lagoons, bays, estuaries, tidal flats and river mouths. It is very rare for a tsunami to go more than a mile inland. The lowest point of the wave crest often touches land first. When this happens, a vacuum effect is created that sucks coastal water into the sea and exposes the seabed. This fall of sea water is an important warning sign of a tsunami. The water usually hits the ground five minutes later. A tsunami is usually made up of a series of waves, called a wave train so that its force can be combined as a straight wave when it hits the shore. People caught in a tsunami should know that the tsunami may not end after the first wave. They should wait for official word that it is safe to travel to a different location. The best defense against any tsunami is an early warning. This allows people to go to higher ground. An earthquake caused the Indonesian tsunami of December 26, 2004. The earthquake that caused it has an impact of 9,0,283,100 people who died in this tsunami. The water height was 34.85 meters. This tsunami is the largest in history. The second largest tsunami occurred in Greece. This tsunami occurred in 1410 BC There were approximately 100,000 deaths in this tsunami. The third largest tsunami is in Portugal. The tsunami happened on November 1, 1755. About 60,000 died in this tsunami. The earthquake that caused the tsunami was magnitude 8.0. The wave height was 12.20 meters. The fourth deadly tsunami occurred in the South China Sea. The tsunami happened on May 22, 1782. About 40,000 died in this tsunami. The strength of the earthquake was 7.0. Please note: this is just an example. Get a custom paper from our expert writers now. Get a Custom Essay The fifth largest tsunami occurred in Indonesia. It happened on August 27, 1883. There were 36,500 deaths in this tsunami. The height of the tsunami was approximately 35 meters. How can you predict when a tsunami will arrive? To help you learn and determine the size of a tsunami, scientists can look at the size and type of underwater earthquake that caused it. This is often the first information they get because other waves travel faster than the tsunami.