As the 7.8 earthquake shook the surrounding landscape, a chunk – measuring around 2,400 feet by 3,000 feet by 300 feet – dislodged from the top of a cliff, dropping 2,000 feet down into the bay.

Anything that disrupts the sea floor in some way has the potential to generate a tsunami, says James Goff, Professor of Tsunami Science at the University of New South Wales. "The main ones we hear ...

Tsunamis have devastated Earth since the beginning of time, here are some of the largest waves of destruction.

A 200 million-ton landslide landed on the toe of Tyndall Glacier and in the water of Taan Fiord on Oct. 17, 2015, Icy Bay, Alaska. It was detected by seismologists on the other side of the country.

Japan tsunami is small compared to five of world's biggest tsunamis A tsunami triggered by a 8.9-magnitude earthquake swamped Japan 's northeast coast Friday, picking up cars, ships and houses as ...

For instance, huge earthquakes triggered the two most destructive tsunamis in recent history: the 2011 Japan tsunami and the 2004 Indian Ocean tsunami. In both cases, record wave height topped out ...

The U.S. East Coast's biggest tsunami threat lurks just offshore, according to research presented today (April 19) at the Seismological Society of America's annual meeting in Salt Lake City.