Earlier, someone pointed out that the waters surrounding the last known position are shallow, but the bottom sediments are often thick, loosely-consolidated pyroclastic deposits. Could these sediments 'absorb' a B777, travelling at speed?
Yes, raised in Post 1470.
http://www.pprune.org/rumours-news/5...st8364903.html
The theory has not yet been debunked.
As a result of a near vertical dive imagine the small craters we have seen on land (flight 93 9/11) occurring in the muddy 20-40 meter sediment in shallow 30 meter waters of Malacca Straights.
Also references crashes in water where there was very little evidence of a fuel slick.(flight 990)