Watch the California girls Texans. Tsunamis are bad.
https://www.youtube.com/watch?v=7oRb9-mypxg
Remember that horrific tsunami that hit SE Asia...
https://www.youtube.com/watch?v=Z-2khcTHIgs
What to watch for? Run like hell to higher ground.
https://www.youtube.com/watch?v=4wZ3ZG_Wams