"Taking advantage of the rising-sea-floor amplification effect, tsunami waves reaching 100 meters [328 feet] in height are possible," Richardson said. Richardson and other experts have also ...

That triggered a massive 300-ft tsunami traveling at about 600 miles per hour. The episode shows some terrifying glimpses of the destruction — a massive wave looming over an entire city and a ...

A strong 7.0 magnitude earthquake has hit near the Pacific nation of Tonga and an initial tsunami warning was lifted hours later

A tsunami warning has been cancelled in Tonga after a magnitude 7.0 earthquake struck the Pacific Island kingdom in the early hours of Sunday.

A 7.0 magnitude earthquake hit near Tonga early Monday morning, causing slight damage and brief evacuations before the threat of a tsunami hitting the Pacific island country passed. Tsunami sirens could be heard after the 1:18 a.