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 ...

It starts as a tremor deep beneath the ocean. The ground shifts violently. Minutes later, you see a ripple on the horizon that begins to swell. But this is no ordinary wave. It is a wall of water ...

Tsunamis can happen on any U.S. coast, according to the government's Ready Campaign. The Pacific and Caribbean coastlines, however, are at the greatest risk. So what's the difference between a watch ...

The 8.8-magnitude earthquake that struck off Russia’s eastern Kamchatka region has triggered tsunami warnings for areas including Hawaii, the U.S. West Coast and countries across the Pacific. Here’s ...