Natural disaster done what kind of damage?

There are many natural disasters happening around the world. There are some major ones and little ones. It affects many people, it bring sadness and devistration. In my personal opinion, I think during summer time there are many natural diaster happening compare to the winter time. This article is about the recent natural disaster (tornados) that happened in Oklahoma.
the site of the article




For the future safety, I think it would be good idea to think about what we need to do when the natural disasters accords or what should we prepare for the safety (emergency).