Tsunamis are among the most violent and fast moving natural disasters on Earth. Triggered by underwater earthquakes, volcanic eruptions, or landslides, these towering waves can move as fast as a jet ...

Tsunami alerts lit up Siri Zama's phone on Tuesday. The 28-year-old high school teacher in Kapolei, Hawaii, fled inland. "It was raining, and the clouds got real dark. It was just a little scary. I ...