"The future ain't what it used to be."

Please forgive my ignorance.......


But what is the "ring of Fire" that is supposed to have an extreme earthquake very soon?
Also, a time traveler recently stated that he was born after the"Great Castrophy" in Austraila?
I thought by John Titor that the war was in 2015 not before. I read these posts often and try to educate myself with reading the past posts but maybe somewhere I missed a post or something? I do not remember reading anything about john Titor saying anything about Austraila going through a "great catasrophy" before 2015. ( I apologize for my mispelling of Austraila)