[nuconvert]

“That aircraft landed somewhere.”

Maybe

Or ..... “The southern Indian Ocean, where investigators suspect missing Malaysia Airlines Flight MH370 may have come down, is one place where a commercial airliner can crash without a ship spotting it, a radar plotting it or even a satellite picking it up.”
“The Indian Ocean, the world’s third largest, has an average depth of about 3600 metres”

I believe I read that the ELT is made to withstand depths of 600 meters.

We’ll have to wait & see.

[Yosemitest]

It takes more than three seconds to go from the surface of the water to 2,000 feet deep.
The ELT starts pinging as soon as it feels a sudden jar of a certain G-force or if it gets wet.
We would have a satellite location if it happened, even over the Indian Ocean.