Count the windows in your home and measure roughly how many 4'x8' sheets of plywood it would take to cover them all if they were destroyed in the violent shaking of an earthquake. Ability to board up the holes left where windows have broken, can make a lot of difference in keeping weather and animals out of what remains intact of your home. Another good reference on boarding up windows.
Where to buy plywood window clips -PlyLox
HEAVY CORDLESS DRILL OR DRILL / SCREWDRIVER and SCREWS
for mounting plywood sheets to cover holes where the windows were
TARPS and/or HEAVY PLASTIC SHEETING (at least 5 mil thickness)
HEAVY DUTY STAPLE GUN and A GOOD SUPPLY OF STAPLES
STRONG/TOUGH WORK GLOVES not lightweight garden type gloves
HEAVY WORK PANTS - JEANS, CARHARTTS etc
In an emergency, no outdoor shelter is going to be ideal, but some protection from the weather is better than none.
Do you have weatherproof shelter from the elements once you are out of direct danger from falling materials or glass breaking?
If you are selecting a new tent, popup or screen-room type tent, make sure it is large enough to plan on living in for more than a week. We have found that Coleman has the best selection of 72” or taller tents.
Popup canopies can provide limited shelter, some have available zip or clipon “sidewalls”.
Another option is the weatherproof popup greenhouse, you can put it up in about 3 minutes, available at local Orchard Supply Hardware stores, and Sears, or online from Greenhousecatalog and other vendors
As a last resort, even a large roll of clear 48" wide bubblewrap or heavy-5 mil plastic is an inexpensive option with which to seal broken windows.
Clip or staple the bubblewrap to your window edges for easy on and off adjustments. Pre-measuring and pre-cutting sections of bubblewrap or plastic for your windows can save time, roll up and store your cut bubblewrap sheets and clips and the roll of duct tape in the rolling Rubbermaid garbage can with lid with other bird supplies for evacuation.
More Useful Info:
Practical advice on Prep for a Hurricane - has a lot of general valuable info in concise format that can also apply to preparing for an earthquake