but there's plenty you can do to protect yourself.

From Lifehacker, this is the disaster manual.

Most earthquakes only last a few seconds.

Even the really powerful ones last less than 30 seconds,

although they can feel a lot longer.

When you feel a tremor,

do not run outside.

First, get down on your hands and knees.

This prevents you from getting knocked over

and makes you a smaller target for falling objects,

which are two of the most

common earthquake-related injuries.

While on the ground, crawl under something

like a table for extra protection.

As you move, use one hand to cover

your head and neck from falling debris.

Try to avoid windows, wall hangings,

tall furniture, or filled cabinets.

Once you find shelter, curl into a ball

and use your arms to cover your head and neck.

If you use a wheelchair or mobility device,

lock your wheels, bend over,

and protect your head and neck with your arms.

In the event that an earthquake strikes while you're asleep,

stay in bed and cover your head and neck with your pillow.

Trying to run through falling debris

in the dark is a bad idea.

Do not stand in a doorway.

Doorways are only reinforced in old adobe-style homes.

Modern homes' door frames are no stronger

than the rest of the house.

When the shaking stops,

look around and make sure nothing is about to fall onto you.

Check if you smell gas or see damaged electrical wiring.

Don't leave your home unless absolutely necessary,

and avoid calling people.

You want to keep the roads and phone lines clear

for emergency personnel.

And then check your home for cracks

in the roof or foundation.

It's impossible to know if there will be any aftershocks,

how intense they'll be, or when they'll stop.

It's important to be vigilant after an initial earthquake

so you're ready to protect yourself with these skills again.

As long as there's no structural damage at this point,

you can start cleaning everything up.

Hopefully, the worst is over.