1. http://environment.about.com/od/environmentalevents/f/what-is-a-tsunami.htm
2. http://www.livescience.com/39110-japan-2011-earthquake-tsunami-facts.html
3. Life of tsunami, United States of America Geological Survey (USGS),
http://walrus.wr.usgs.gov/tsunami/basics.html
4. Australian Government, Bureau of Meteorology,
Bureau Home > Tsunami Warnings > Tsunami Facts and Information
http://www.bom.gov.au/tsunami/info/#physics
5. Animations of Tsunami. United States of America Geological Survey (USGS),
http://walrus.wr.usgs.gov/tsunami/persistence.html
6. https://en.wikipedia.org/wiki/2004_Indian_Ocean_earthquake_and_tsunami#/media/File:2004_Indian_Oce an_earthquake_-_affected_countries.png
7. http://www.ga.gov.au/news-events/features/ten-years-on-2004-indian-ocean-tsunami
8. http://teachersnetwork.org/teachnet-lab/goldstein/country/webpages/indonesiantsunami.htm
9. http://www.livescience.com/39110-japan-2011-earthquake-tsunami-facts.html