Japan Issues First-Ever ‘Megaquake’ Warning After 7.1 Magnitude Tremors Jolt Nation | Watch

The Japanese Meteorological Agency on August 8 issued its first-ever 'megaquake' warning, following a magnitude 7.1 earthquake struck off the coast of Kyushu. Japan's authorities believed chances of a possible major earthquake around the Nankai Trough. 'Megaquake' explained in this video. Watch