A force, because a force causes a vibration.
Or if that's not what your looking for the other answer is coldness or the wind.
Also it could be that your nervous.
All of those are right.
I'm not sure which one you are looking for, but i gave you all 3.
The violent shaking causes buildings to fall. It also causes causality loss of the people inside it.
Because sometimes the universe is shaking, and that is what causes it.
Violent shaking can cause certain soils to flow. The shaking results from a nearby earthquake.
Telling them to say no
it causes land slides
Shaking is because your body is low in blood sugar. Caffeine causes it. Drink some juice (with sugar in it) or chocolate milk or eat candybars.
shaking my body
You are dehydrated
Shaking soda causes the carbon dioxide gas bubbles to escape from the liquid, making it flat.
It is caused by involuntary muscle contractions.
warped rotors
Low pressure in the tires can cause shaking, the alignment can cause shaking also.