An Acehnese boy plants a paper-made sakura or cherry flowers with messages of hopes written on them by Indonesian and Japanese students, during the commemoration of 6 years since 2004 Indian Ocean tsunami organized by the University of Tokyo's Earthquake Research Institute outside Baiturrahman Grand Mosque in Banda Aceh, Aceh province, Indonesia, Dec. 25, 2010.
The event was part of a series of commemorations of devastating earthquakes that struck West Sumatra in 2009, Aceh in 2004 and Kobe in 1995. The Dec. 26, 2004, tsunami killed 164,000 people in the Indonesian province.