Find out what they already know
Depending on your child's age, they may already have seen hurricanes, floods Easy Cellar and fires on the news. Find out what they know about natural disasters, and how that makes them feel. This will give you a better idea of the knowledge base that you have to build on, and let you know where you should start in your discussion.
Give accurate information that is not overly explicit
If your children have any misconceptions or gaps in their knowledge, fill them in in a calm, educational way. Dispel any myths or untruths that they may have heard from other sources, and do your best to explain that natural disasters are rare, and not something to be feared, but rather something to be aware of and well-prepared for. This can be the perfect segway into a discussion about disaster planning, household procedures and family meeting points.
Give them time to ask questions and express their fears