Add Yahoo as a preferred source to see more of our stories on Google. Tsunami waves were observed in Tonga's capital and the capital of American Samoa, a U.S.-based tsunami monitor said. The eruption ...

An underwater volcano off Tonga erupted on Saturday triggering a tsunami warning for several South Pacific island nations, with footage on social media showing waves crashing into homes. Recasts with ...

The next great American tsunami is not a Hollywood fantasy but a scenario that coastal planners, geologists and emergency managers now treat as a near inevitability. Their fear is rooted in hard ...