| By Eliana Pisons | Japan issued its first-ever megaquake advisory, warning about the possibility of a megaquake in the Nankai Trough off the coast of Kyushu following a magnitude 7.1 earthquake last week.
Saturday, August 22
| By Eliana Pisons | Japan issued its first-ever megaquake advisory, warning about the possibility of a megaquake in the Nankai Trough off the coast of Kyushu following a magnitude 7.1 earthquake last week.