After 14 years, the 2011 tsunami in Japan has not been forgotten - How tsunami science has advanced, 20 years after the catastrophe in Indonesia - Underwater Krishna-Godavari basin landslide can trigger tsunami: Scientists - Ceremonies across Asia mark 20 years since catastrophic tsunami that killed 220,000 - Memorial services mark 20 years since devastating Boxing Day tsunami claimed 230,000 lives - I lost two sons & fiance in Boxing Day tsunami - it destroyed my life - but I had to go back there for 20th anniversary - Families of Boxing Day tsunami victims weep as they mark 20th anniversary of one of the world's worst natural disasters - Thailand mark 20 years since devastating tsunami - Memorials held across Asia to mark 20 years of devastating tsunami - 'I survived 2004 tsunami that killed my brother - but I don't feel guilty'