I put the last known latitude and longitude according to Flightaware 4.7073N 102.5278E into Google Earth and it came up with a Malaysian mountaintop in the flight path of the plane not middle of ocean.
I assume this is because Flightaware coverage is incomplete?
See
Flight Track Log ? MAS370 ? 08-Mar-2014 ? WMKK / KUL - ZBAA / PEK ? FlightAware