There can be a whole bunch of reasons such as:
why do people move away from mt.etna
Because it's a nice place to live. When people retire they move away from places they were tied to because of work.
They move away from where they were born seeking more independence by being away from their families where they had been raised up. They may be also looking for better job opportunities. They may also fond of traveling to other places as a matter of curiosity and sight seeing.
yes because the people had to move to other places
Different places. Here, there, everywhere.
When two plates move away from each other it makes a falt line or a riffed. -bekahcboo
the gravity stops them from floating away
It is to evacuate people away from danger.
Because they can IDIOT
move away
if people move a short distance then it is to get away from their neighbors, because they were not nice.
For the exactly same reasons that people live in other places.