What's a simile/noun used to describe something shaking violently?

I'm looking for a simile or noun that can be used to describe something shaking violently. For example,

The room shook as hard as --insert thing that shakes violently--.


Solution 1:

Here are a few examples, some perhaps more useful than others:

The room shook as hard as...

  • an old-time Quaker revival
  • an addict in withdrawal
  • a Volkswagen bus filled with hippies
  • a Chihuahua in winter

Please forgive me...my sense of humor is a bit twisted. But maybe one of these will jog your creativity.