I've noticed a big increase in pop culture with the word "apocalypse" to describe worldwide destruction. Technically speaking, apocalypse is an English transliteration of the Greek ἀποκάλυψις which means "unveiling." It is translated in our English Bibles as "revelation."
In the last book of the New Testament it is the unveiling of Christ as Lord in the midst of the unveiling of events occurring to the seven churches in first century Asia Minor and a look to the future when, in the words of Paul, faith becomes sight.
So, apocalypse in the biblical sense doesn't mean an "end of the world" scenario. It is the revelation of Christ in the midst of things that have already come and things still yet in the future of God's salvation history.