Gulf Coast – Don’t Get Too Comfortable
The Gulf Coast has the lowest tsunami risk in the USA, but “lowest” doesn’t mean “zero.” This region gets some protection from Florida, Cuba, and shallow continental shelves that act as natural barriers. Historical huge waves here have reached less than 3 feet tall, resembling aggressive storm surges rather than true tsunamis. Most here are seiches, which are water oscillations caused by storms rather than earthquakes. The main risks still come from Caribbean earthquake sources, so complacency kills.
