The Andaman Sea (historically known as the Burma Sea) is a marginal sea of the northeastern Indian Ocean, defined by the coastlines of Myanmar and Thailand along the Gulf of Martaban and the west side of the Malay Peninsula, and divided from the Bay of Bengal to the west by the Andaman and Nicobar Islands. Its southernmost point is Breueh Island, just north of Sumatra, with the Malacca Strait to the southeast. The sea has traditionally been used for fishing and transporting products between coastal countries, and its coral reefs and islands are attractive tourist sites. The 2004 Indian Ocean earthquake and tsunami badly harmed the fishing and tourist infrastructure.