The 2004 Indian Ocean Tsunami, one of the deadliest disasters in recent history, claimed more than 220,000 lives across 14 countries. Tsunamis are unpredictable and can arrive within minutes or hours, impacting multiple ocean basins. In response, UNESCO and its Intergovernmental Oceanographic Commission took the lead in developing a coordinated global early warning system. has developed a global early warning system relying on a dense network of sensors, tide gauges, and regional warning centers

Boxing Day Tsunami: 'It was quite terrifying'

It's been 21 years since the devastating Indian Ocean earthquake and tsunami of 2004. It was Boxing Day when a 9.2-9.3 magnitude earthquake struck off the west coast of Aceh in northern Sumatra, Indonesia. Approximately 275,000 people were killed across 14 countries, marking it one of the largest natural disasters in recorded history. #tsunami #boxingdaytsunami #earthquake #naturaldisaster #Asia | 7NEWS Australia

This fisherman was out at sea during one of the most powerful volcanic eruptions ever recorded, which sent a massive tsunami wave his way. Here's how he survived the 2022 eruption of Hunga Tonga-Hunga Ha'apai: | NOVA l PBS