Watch on LiveTube Now 👉 Video: LIVE: Thailand marks 20 years since the 2004 Indian Ocean tsunami A 9.1 magnitude earthquake struck off the coast of the Indonesian island of Sumatra on Dec.

People have gathered in prayer and visited mass graves in Indonesia's Aceh province to mark the 20th anniversary of the massive Indian Ocean tsunami. On Boxing Day in 2004, a powerful 9.1 ...

Broadcast live by the BBC and S4C, the event raised over £1.25 million and for one night, it placed Wales at the centre of a world-wide relief effort for the victims of the tsunami disaster.