參考新聞︰
1.Japan earthquake: 'It's as if these big concrete buildings are made of jelly'
2.Japan: The 'Big One' hit, but not where they thought it would
3.Japan a leader in engineering earthquake-proof structures, helping to limit damage
4.Quake Warning System Alerted Tokyo
5.《日本強震》東京鐵塔歪斜 天空樹未受影響
6.Japan begins quake relief mission
7.U.S. mobilizes to get assistance to quake-ravaged Japan
8.Emergency Preparedness and Response (Potassium Iodide)