Mark 13:20 And except that the Lord had shortened those days, no flesh should be saved: but for the elect's sake, whom he hath chosen, he hath shortened the days.

God is about to Judge the people of Earth, all would die from Radiation poisoning, but the Judgement of God will happen.

Rev 20:12 And I saw the dead, small and great, stand before God; and the books were opened: and another book was opened, which is [the book] of life: and the dead werejudged out of those things which were written in the books, according to their works.
Rev 20:13 And the sea gave up the dead which were in it; and death and hell delivered up the dead which were in them: and they were judged every man according to theirworks.
Rev 20:14 And death and hell were cast into the lake of fire. This is the second death.
Rev 20:15 And whosoever was not found written in the book of life was cast into the lake of fire.
Rev 21:01 And I saw a new heaven and a new earth: for the first heaven and the first earth were passed away; and there was no more sea.
Rev 21:02 And I John saw the holy city, new Jerusalem, coming down from God out of heaven, prepared as a bride adorned for her husband.
Rev 21:03 And I heard a great voice out of heaven saying, Behold, the tabernacle of God [is] with men, and he will dwell with them, and they shall be his people, andGodhimself shall be with them, [and be] their God.
Rev 21:04 And God shall wipe away all tears from their eyes; and there shall be no more death, neither sorrow, nor crying, neither shall there be any more pain: for theformer things are passed away.
Rev 21:05 And he that sat upon the throne said, Behold, I make all things new. And he said unto me, Write: for these words are true and faithful.