By - Blake in Grade 7

Tsunamis are huge waves caused by land splitting under water. The meaning of Tsunami in Japanese is “Harbor Wave”. How fast a normal Tsunami is about 500 mph.

Ways That Tsunamis Can Start

1 - When the sea floor cracks and then one half of the floor with drop, then water will go into the void then back up as a Tsunami.

2 -

If a landslide is big enough it will make a Tsunami.

Under water volcanos also start Tsunamis from erupting.

The Biggest Tsunami In The World

The largest Tsunami ever recorded was 520 METERS TALL!!! It was in Lituya Bay, Alaska.

How It Started

1958 Lituya Bay Megatsunami Simulation (Short)