Tsunamis occur most often in the Pacific Ocean and Indonesia. This is because the Pacific Rim bordering the ocean has a large number of underwater seismic zones. Meanwhile, 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 should not be banned"? Get the original essay Very large tsunamis can cause damage to places thousands of miles from the earthquake that caused them. The most dangerous place during a tsunami is on beaches, lagoons, bays, estuaries and river mouths. It is very rare for a tsunami to extend more than a kilometer inland. Low point of the wave crest, it often hits land first. When this happens, it creates a vacuum effect that sucks coastal waters into the sea and shows the seabed. This seawater fall is an important warning sign of a tsunami. The water usually reaches land five minutes later. A tsunami is usually made up of a series of waves, called wave trains, so its force can be combined into a straight wave when it hits the shore. People affected by a tsunami should be aware that the tsunami may not stop after the first wave. They should wait for official notice that it is safe to travel to another location. The best defense against any tsunami is early warning. This allows people to get to higher ground. An earthquake caused the Indonesian tsunami of December 26, 2004. The earthquake that caused it had an impact of 9.283 100 people died in this tsunami. The height of the water 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 around 100,000 deaths in this tsunami. The third largest tsunami occurred in Portugal. The tsunami occurred on November 1, 1755. Around 60,000 people died in this tsunami. The earthquake that caused the tsunami was 8.0. The height of the wave was 12.20 meters. The fourth deadly tsunami occurred in the South China Sea. The tsunami occurred on May 22, 1782. Around 40,000 people died in this tsunami. The strength of the earthquake was 7.0. Keep in mind: this is just a sample. Get a personalized article from our expert writers now. Get a Custom Essay The 5th largest tsunami occurred in Indonesia. This happened on August 27, 1883. This tsunami caused 36,500 deaths. The height of the tsunami was approximately 35 meters. How to predict the arrival of a tsunami? To help you know and determine the size of a tsunami, scientists can look at the size and type of the underwater earthquake that caused it. This is often the first information they will get because other waves travel faster than the tsunami..