After the Great East Japan Earthquake, the expected impact of giant earthquake and tsunami has been intensified, and the content of tsunami warnings/advisories was revised on March 2013.

Tsunami even more powerful than those that left nearly 20,000 people dead in the 2011 disaster could strike coastal areas of northern Iwate Prefecture if an off-the-charts earthquake strikes ...

The monster earthquake and ensuing tsunami that ravaged Japan in March 2011 left behind a ton of floating debris in its wake—25 million tons to be exact. And now that giant mass of garbage ...