| 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.
Wednesday, October 21
| 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.