http://ecoki.com/study-finds-high-risk-earthquake-locations/

http://library.thinkquest.org/5818/hurricanes.html

http://tornado-facts.com/tornado-pictures/

http://buscoscience.wikispaces.com/tsunami

http://thisistheendoftheworldasweknowit.com/archives/earthquakes-2010

Photoshop image: http://baghdadbythebaysf.com/tag/tsunami/

http://wakemedvoices.org/2011/04/tornado-watch-or-warning-%E2%80%93-when-do-you-seek-shelter/

http://www.hurricane-facts.com/Hurricane-Pictures.php