The tsunami was triggered by an earthquake on December 26, 2004 near the Indonesian island of Sumatra. The earthquake registered 9.0 on Richter scale.
An estimated 10,136 people died, 5,832 reported missing and lakhs of people were rendered homeless according to the official reports given by Indian government.
The worst affected region in India was the Andaman and Nicobar group of islands with death toll exceeding 7000. The tsunami affected 2,260 km of Indian coastline. On the mainland, Tamil Nadu was worst effected in a concentration of 500-1000 metres from the coastline.