ummm what was hurricane katrina ricter scale #
The Richter Scale is for earthquakes, not hurricanes.
http://www.google.com/search?q=richter+scale&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
http://www.google.com/search?q=hurricane+scale&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a