Making a Family Plan
Sit down with all of the immediate members of your family and make a solid plan about how you want to deal with different scenarios that might arise in your area.
If you have three children in three different schools and an earthquake hits, plan what you will do, what your spouse should do, and what each child should do. Depending on your specific limitations and scenarios, you may have Plan A that says you will pick up the youngest two children and your spouse will pick up the oldest. Plan B or a completely different scenario might require that your oldest two children goes to the location of the youngest and waits for your spouse to pick all of them up at once.
Let every family member have a say in the planning stages and ideas. Once a full plan for different scenarios is decided upon, write down the steps for each and make a copy for each person in the family. Carry those written plans as reference points so that everyone is clear on what should happen, by who, and when if a given event occurs.
By planning out step by step actions for each member of the family, making sure everyone knows what the exact plan is when X event happens, and ensuring everyone has emergency contact information with them at all times, you can be sure you're preparing and protecting your family as fully as possible.