Tsunamis are giant, powerful waves most often caused by earthquakes beneath the ocean floor. Their incredible power can destroy entire communities, then drag...
Tsunamis are giant waves caused by earthquakes or volcanic eruptions under the sea. They speed along as fast as jet planes. As they near land, these waves rear up to great heights and can drown whole
This page explains what actions to take when you receive a tsunami (pronounced soo-ná-mee) alert from the National Weather Service for your local area. It also provides tips on what to do before, duri
Learn more about these destructive surges of water from National Geographic.