Secure free-standing bookshelves to the wall
In the 1983 earthquake, this entire shelf fell over in the Hawaiian Volcano Observatory machine shop.
If your bookshelves are free-standing, they could easily fall over during a large earthquake, injuring anyone who happened to be adjacent, especially a small child. Don't take that chance! Inexpensive metal L-shaped brackets are available at your local hardware store, and they're easy to install. One side attaches to the bookshelves, and the other side attaches to a stud in your wall.
One side of the L-brackets attach to the bookshelves, another side to the wall.
Make sure your braces attach to studs in the wall.
Even if your bookshelves are securely attached to the wall so they couldn't possibly fall over, what do you store on them? Are you storing anything heavy that might fall off and injure someone standing nearby? If so, it might be a good idea to remove those items and keep them somewhere else.
Although the bookshelves in the Hawaiian Volcano Observatory library remained standing during the 1983 earthquake, the books didn't.
If kitchen shelves are open and exposed, all of the items stored there might fall off during a large quake, including dishes and glassware. To help alleviate this problem, you could create a "lip" on the shelves, such as a thin strip of wood on or near the edge of each shelf, that would make it more difficult for things to fall off.
In the case of kitchen cabinets, you might also consider installing latches on certain cupboards. During a large earthquake, it is possible that the items inside the cupboard could be sent flying with enough force to knock open the cupboard door.
Also attach large top-heavy objects (such as televisions and computer monitors) to the desks or tables on which they are standing.
Watch the video! Auntie Lita explains how to brace up your bookshelves.
The earthquakes of 10/15/2006 caused extensive damage on the Big Island. Houses shifted off their foundations, rock walls collapsed, and items on shelves (sometimes the shelves, too) were sent crashing to the floor. Don and Kerrill Kephart, Kohala area residents, provide this advice:
We noticed a few trends that might be of interest:
-We had many cabinets and display cases fall over, but not one which was fastened to the wall framing with even the wimpiest screw or metal bracket.
-We had dozens of pictures come down which had been mounted with the two-pin style picture hangers. On the other hand, not one auger-style anchor came down.
-Display shelves with even the slightest lip on the front (say 1/2") fared far better than those that were sheer to the edge. Museum wax under our collectibles would have been even better.
-Few items broke which stayed on their shelf, only when they fell to the ground; so plastic child-proof clips on the cupboard doors would have saved thousands of dollars worth of damage.
-The neighbors lost their hot water when their heaters sheared their connections to the wall. Modern installations include heater straps as a matter of code, but it would cost less than $10 to add them if yours doesn't already have them.
At the end of the day, however, it is just stuff. We would rather see the whole house reduced to a pile of rubble than see something happen to each other or one of the grandkids.
DAMAGE TO THE KEPHART HOME
In the Kephart's kitchen pantry, many items fell from shelves during the large earthquakes.
PREVENTING FUTURE DAMAGE
Kitchen shelves that were not secure fell to the floor.
It's easy to install a lip across the front of shelves. Even a lip that is only an inch tall can keep wineglasses from sliding off.
Place silly putty, velcro, or surfboard wax under breakables, to keep them from falling off shelves. Add a thin strip of wood as an additional barrier.