MORE REFERENCES

http://en.wikipedia.org/wiki/Earthquake

http://www.hdwallpapersdj.com/2013/10/japan-earthquake/

http://www.boston.com/bigpicture/2008/05/earthquake_damage_in_beichuan.html

http://www.thelandofsnows.com/two-years-since-the-yushu-earthquake/

http://en.wikipedia.org/wiki/Soil_liquefaction

http://www.japansociety.org.uk/earthquake/

http://earthquake.usgs.gov/

http://www.jma.go.jp/en/quake/

http://www.emsc-csem.org/Earthquake/