Megatsunamis Worlds Biggest Wave

The video discusses mega tsunamis, focusing on their formation, historical occurrences, and potential future risks. It begins with the Greenland mega tsunami, explaining how it differed from typical tsunamis. The video then explores historical and prehistoric mega tsunamis, including events in Alaska, West Africa, and Hawaii. It concludes by addressing the potential increase in mega tsunamis due to climate change, particularly in regions with melting permafrost.

What was unusual about the tsunami that hit Nugatsyuk?

• It occurred in the middle of the ocean.

• It was caused by a landslide.

• It was the smallest tsunami recorded.

• It was caused by an earthquake.

What is a key factor in the formation of a mega tsunami?

• A large earthquake at sea

• A sudden change in weather

• A volcanic eruption

• A significant amount of material entering water

Which historical event is an example of a mega tsunami?

• The 1958 Latuia Bay tsunami

• The 2004 Indian Ocean tsunami

• The 1960 Chilean tsunami

• The 2011 Japan tsunami

What evidence suggests ancient mega tsunamis occurred in Hawaii?

• Volcanic ash deposits

• Ancient human records

• Limestone gravel found above sea level

• Fossilized marine life

What might increase the frequency of mega tsunamis in the future?

• More frequent earthquakes

• Melting permafrost

• Rising sea levels

• Increased volcanic activity

How does climate change potentially affect the stability of permafrost?

• It makes permafrost more stable.

• It strengthens the permafrost layer.

• It has no effect on permafrost.

• It causes permafrost to melt.

What is a potential benefit of early warning systems in the Arctic?

• They can protect communities from mega tsunamis.

• They can predict earthquakes.

• They can prevent landslides.

• They can stop climate change.