Also known as the Sumatra-Andaman earthquake, it was estimated to be a magnitude 9.15, and occurred on December 26, 2004. While the earthquake itself lasted for only 10 seconds, it caused a tsunami that killed 200,000 to 310,000 people along the shores of Indonesia, Sri Lanka, South India, and Thailand with one death even occurring at Port Elizabeth in South Africa, 8,000 miles away from the epicenter.