Indonesia, Sri Lanka, India, Maldives, and Thailand sustained the brunt of the damage. Indonesian officials estimated that the death toll there alone ultimately exceeded 200,000, particularly in north

Christmas in 2004, a 9.1 magnitude earthquake under the Indian Ocean triggered tsunami waves that killed some 230,000 people across a dozen countries.

Survivors and mourners gathered at mass graves in Indonesia, Thailand and other places along the Indian Ocean that were devastated by the 2004 tsunami — the deadliest in the world.