Trennis Baer and his friends are snowmobiling in West Yellowstone. On Trennis' way down during a hike up a trail, an avalanche breaks out. This clip then describes avalanches and how they occur. It also poses a question: what would you do to escape the avalanche if you were in Trennis' situation?

See the awesome destructive power of landslides.

Tsunamis are giant, powerful waves most often caused by earthquakes beneath the ocean floor. Their incredible power can destroy entire communities, then drag the debris out to sea. This video shows what causes tsunamis and the importance of evacuating any area under a tsunami alert.

The volcano erupts during a town hall meeting convened to discuss the threat of such an eruption. The residents panic and rush to leave.

An enormous tsunami makes its way to the streets of New York City, causing havoc and destruction. While cinematic, this scene can be used to show the damage that can result from a natural disaster such as a tsunami.