A tsunami is a series of powerful waves caused when something suddenly moves a large amount of water, usually an earthquake under the sea. These waves can race across the ocean as fast as a jet. In deep water, they are hard to see, but in shallow areas, they grow taller and stronger. Tsunamis can also occur due to underwater landslides or volcanoes. Scientists use special tools to track them and warn people early.
A tsunami is a series of powerful waves caused when something suddenly moves a large amount of water, usually an earthquake under the sea. These waves can race across the ocean as fast as a jet. In deep water, they are hard to see, but in shallow areas, they grow taller and stronger. Tsunamis can also occur due to underwater landslides or volcanoes. Scientists use special tools to track them and warn people early.