rog747;
Time to get the Royal Navy up there quick with our sub HMS Tireless to confirm the pulse signal?
Surely time to send in a P3 to drop some sonobuoys?
Also;
If the MAS flight MH370 Boeing 777 had crashed in that region then any floating small wreckage will be soon reaching the shores of Western Australia due the prevailing weather and sea conditions
Perhaps time to calculate the drift current and dispatch an aircraft to hi-res image potential shore line for debris?