I heard about this on the news the other day.I did some research on wikipedia and found besides the Mary Celeste there have been a number of ghost ships discovered not mention many ships and submarines that have disapeared over many centuries. http://news.bbc.co.uk/2/hi/asia-pacific/6574547.stm
The last time I was on a ghost ship I called up the captain "please bring me my wine" He said, "we haven’t had that spirit here since nineteen sixty nine" What kind of ghost ship doesn't serve wine?
What a sad story... I think the theory posed on the wikipedia entry about the incident is the most probable cause, though: http://en.m.wikipedia.org/wiki/Kaz_II