An earthquake starts by...

tectonic plates that shift under ground, one breaks out of the earth and creates a fault line then causes an earthquake
Preparing for an Earthquake


Safety preparation

to be safe during an earthquake a couple things you can do is close the doors and the doors to the cabinets and make sure you get on the ground and hold on to something sturdy.

safety dogs

In an earthquake there are safety dogs that will save you if something falls on you or if you're hurt. Also if the safety dog can't help you by pulling you out from under something or pushing a object over the safety's can help you with whats wrong.
Lola the Earthquake Hero Dog - Part 1 | Extraordinary Dogs