A "megaquake" and subsequent tsunami could cause as many as 298,000 deaths in Japan and damage costing up to $2 trillion, the ...

Japan's economy could lose as much as $1.81 trillion in the event of a long-anticipated megaquake off its Pacific coast, ...

A tsunami warning has been lifted for Tonga after a strong 7.1 magnitude earthquake struck near the Pacific Island country.

Tsunami sirens could be heard after the 1:18 a.m. quake urging residents to move inland in a live video streamed by the Tonga ...

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A 7.0 magnitude earthquake struck off the coast of Tonga early Monday. The island nation felt six aftershocks but did not immediately report damage.

A strong 7.1 magnitude earthquake hit near Tonga, a country in Polynesia made up of 171 islands with a population of a little ...

The U.S. Geological Survey said the temblor hit about 100 kilometers (62 miles) northeast of the main island in the early ...