,http://www.livescience.com/37529-continental-drift.html- Continential drift
http://www.ga.gov.au/scientific-topics/hazards/earthquake/basics/what-Earthquake
http://www.japan-guide.com/list/e1102.html- Tohuku earthquake
http://www.history.com/this-day-in-history/earthquake-wreaks-havoc-in-the-philippines-Luzon earthquake
http://earthquake.usgs.gov/research/earlywarning/-Technological development
http://www.sciencecourseware.com/eec/earthquake/-Earthquake
http://www.ucmp.berkeley.edu/geology/techist.html- earthquake continental movement
Science year 9 persons textbook​-earthquake, plate tetconic