World Tsunami Awareness Day: A look at deadliest tsunamis in history
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The United Nations General Assembly started the World Tsunami Awareness Day in 2015 which is observed on November 5, every year. Tsunamis are giant waves caused by earthquakes or undersea volcanic eruptions. Over the years, tsunamis have caused destruction of a large magnitude. Here's a look at some of the deadliest Tsunamis that have taken place in history.