Moments of silence were observed in the countries that were hit by the 2004 tsunami. The disaster killed hundreds of thousands of people, in one of the worst natural disasters in history. Many more lost their homes and properties.
Since then, the focus has been on establishing a viable early tsunami warning system that could save lives in the future.
So, is the region prepared for the next big disaster?
Presenter: Hazem Sika
Agus Firman - tsunami survivor who lost his parents and two brothers in the disaster
Matthias Schmale - senior manager of the International Federation of Red Cross and Red Crescent Societies
Flemming Konradsen - professor at the University of Copenhagen, School of Global Health, who was in Sri Lanka when the tsunami hit
Source: Al Jazeera