Japan issues an alert for a potential ‘mega-earthquake’ after an earthquake of magnitude 7,7
The Japanese authorities have withdrawn this Monday the tsunami alert issued hours earlier after a 7.7 magnitude earthquake on the open Richter scale off the country’s eastern coast, with no information on victims or material damage so far. However, a warning remains in place for the prefectures of Hokkaido, Aomori, and Iwate, as well as Miyagi and Fukushima, due to a potential ‘mega-earthquake’ that could occur as part of the aftershocks of the quake.