The boffins seem to have overlooked the fact that the Atlantic is still expanding by a few cm. a year, and has the mid-oceanic ridge running down the middle which spews out vast amounts of lava every year and interesting phenomena known as "black smokers" which belch sulphur-rich plumes at up to 1000 degrees C on to the sea floor. Not to mention the frequent earthquakes associated with sea floor spreading.
Methinks I'll stick with the airlines...