1: the release of seismic energy from the friction between moving plates in the earth's crust.
2: natural selection for Californians.

When everyone has a mini seizer at once.

a natural phenomenon which is no longer a phenomenon for the people of Japan.

When you're having sex and your partner has a seizure.

A prank in which someone shoves a boy or man who is urinating into a urinal, yelling 'Earthquake!'

What happens when a fat person walks.

So there's this BYU thing called "soaking" where a man puts his penis in a woman but instead of thrusting, he just holds still. Pretty boring right? But if he were to move he'd be having sex and thereby breaking the law of chastity.

If only there was some way for him to have a more satisfying experience.

Well now there is! It's called EARTHQUAKING !
All he needs to do is soak on a top bunk and have a friend kick from the bottom bunk.

Satisfaction guaranteed and 100% guilt free.