Hellsing4682 made a ping pong of this gif for fun:

Awesome!  In horror films, they also call that a shock zoom. 

It doesn't usually ping pong back and forth like the second gif though, right?

Alfred Hitchcock used to use the dolly zoom technique in his movies.

Here it is in Vertigo:

RidleyScotch made a gif of the shot itself:

You're gonna need a bigger boat.

http://pandawhale.com/post/45152/jaws-youre-gonna-need-a-bigger-boat-gif