Summary
For nearly two years, a team of Franco-Indonesian researchers based in Banda Aceh, Indonesia, took turns in the field to try to reconstruct the course of the disaster from the accounts of survivors as well as data collected locally. Based on that, the objective is to reconstruct and model the tsunami for risk prevention purposes. Today, researchers can rely on the numerous amateur images filmed on the different sites, which allows them to evaluate more realistically the height of waves or their propagation speed. This new type of document was still rare at the time of the 2004 disaster and led to a better understanding of the phenomenon and many advances in anticipating the various problems that could arise during evacuations.