If Harold Camping is right, then you should probably stop reading this and go say goodbye to your family.

The 89-year-old California-based preacher and host of the "Open Forum" television and radio show has predicted that the Christian Rapture - the return of Jesus Christ, salvation of his followers, and accompanying apocalypse - is set to take place on Saturday, May 21.

"We have no plan B, it is going to happen," Camping said. "The Bible is a very factual book."

According to Camping, the Rapture will begin in New Zealand with earthquakes unlike anything the Earth has ever seen, and it will continue for five months.

Camping, who predicted a previous Rapture in 1994, has according to some colleagues spent millions of dollars promoting the end of the world with nationwide billboards and doomsday information-bearing trucks.

Al Jazeera's Rob Reynolds has more on the story from Los Angeles, California.