How A Tsunami Works Answer Key

Natural movements of layers of the Earthís crust push together causing a pressure under the oceanís floor. A massive underwater earthquake takes place on the ocean floor. The energy from the earthquake is transferred to the water. The water level rises greatly above normal sea level. Gravity acts on the upward movement of water and forces the energy out horizontally along the surface of the water. A large series of waves in the ocean are created. These waves can travel faster than a commercial jet at times. When these waves are able to reach shore, it can have catastrophe affects on inhabitants of the area.