Japan 2011 Tsunami

• What part of the country was struck by the disaster?
• What was the strength of it?
• When did it happen?
• Where was its centre?
• Did the alarm system go off?
• where could the people retreat?
• Did the sea walls protect the area?
• was the height of the wall enough for such an earthquake?
• What is the rank of theis catastrophy?
• What was the cause of the quake?
• Are the tsunami waves dangerous in the centre of the ocean?
• How deep inland did the tsunami get?