If you happen to be visiting a government building, a school, or a preschool at 10:17 tomorrow morning, you may get caught up in The Great Northeast ShakeOut. According to the website, "2013 is the first year that Northeast states will be organized as an Official ShakeOut Region."
So what is the ShakeOut? It's earthquake preparedness training, a drill. Earthquakes are infrequent here in the Northeast, but they do happen. And one day, without warning, we may get a big one.
The ShakeOut only lasts a few seconds, you can listen to the drill broadcast here, and you can use it in your own home or workplace.
If you'd like to prepare your home and family for an emergency, I'd recommend looking for the Handbook to Practical Disaster Preparedness for the Family by Arthur T. Bradley [363.348 BRA].
If you'd like to learn more about earthquakes, look for materials in either the adult or children's section under 551.2.