Part 6/12:

Beyond the human stories, scientists have dedicated themselves to understanding the region's seismic activity, aiming to prevent or mitigate future disasters. Siberut Island, off the coast of Sumatra, sits atop the active Sunda megathrust fault, which has not produced a major earthquake in over 200 years. Experts warn that the next big quake might be long overdue, potentially triggering another tsunami.