Top Historic Moments on Instagram: "On the 26th of December 2004, a 9.1-magnitude undersea earthquake off Sumatra, Indonesia, triggered a massive tsunami across the Indian Ocean. Waves up to 100 feet high devastated coastal regions in 14 countries, killing over 230,000 people and displacing 1.7 million. Indonesia, Sri Lanka, India, and Thailand suffered the heaviest losses, with entire communities wiped out. The disaster, captured in raw footage, prompted a global humanitarian response, raising