Tsunamis

Tsunamis
Even Hollywood-scale waves fall short when depicting a tsunami's full size and power. Once launched by an undersea earthquake or landslide, tsunamis can race across the ocean at the speed of a jet liner (500 mph). Wave peaks can be hundreds of miles apart. All that moving water can add up to three storeys of wave crashing into coastlines and the people who live along them. The December 2004 tsunami in the Indian Ocean off Sumatra was a tragic reminder that just because tsunamis are rare doesn't mean we can put them out of our minds.