The waves of the Indian Ocean tsunami of 2004, caused by the Sumatra-Andaman earthquake, originated in the open ocean located to the west of Sumatra in Indonesia, where the event claimed 130,736 lives. Other hard-hit countries in the path of the tsunami were Sri Lanka, where 35,322 people died; India, where 12,405 people died; and Thailand, where 5,395 people lost their lives.
Other countries hit by the tsunami include Somalia, Myanmar, Maldives, Malaysia, Tanzania and Seychelles. Bangladesh, South Africa, Yemen, Kenya and Madagascar were also hit, although casualties in those countries were significantly fewer. The tsunami left 184,167 confirmed deaths and an estimated 1.74 million people displaced.