Tsunamis are an extreme force of nature that have the ability to affect hundreds of thousands of people at one time and cause billions of dollars of damage. Meteorologist Kelly Reardon takes a ...

Undersea earthquakes and volcanic eruptions displace destructive amounts of water and send it across oceans to flood distant coasts ...

Tsunamis form when a sudden event, like an undersea earthquake, displaces a large volume of water. Their size can vary greatly depending on factors.

A tsunami is a series of ocean waves that sends surges of water, sometimes reaching heights of over 100 feet (30.5 meters), ...

Tsunamis are most often caused by large earthquakes, but there can be other sources. The sea floor is disrupted which displaces the ocean water. Waves then start to race outward, at several hundred ...

What causes a tsunami, and how could a powerful earthquake like the one off Russia's coast trigger massive waves?

Tsunamis form when a sudden event, like an undersea earthquake, displaces a large volume of water. Their size can vary greatly depending on factors.

Waves come from the wind so tsunamis, which are basically bigger waves, must come from more wind, right? Not exactly. This cute animation explains that though normal waves are formed from above ...

If a tsunami formed along the Cascadia Subduction Zone off the coast of Oregon, residents might have just 20 to 30 minutes to get to safety. Scientists have proposed a new forecasting system that ...

Tsunamis form when a sudden event, like an undersea earthquake, displaces a large volume of water. Their size can vary greatly depending on factors.

Weather How do tsunamis form? Following the major 8.8M earthquake in Russia, tsunami alerts were issued for Hawaii, Alaska and the Continental U.S. West Coast Wednesday.

As Japan assesses the toll of yesterday’s 9.0 magnitude earthquake and tsunami, onlookers half a world away are likely wondering if a similar force of nature could strike in the Atlantic. The ...