![]() These processes have resulted in three impacts on reefs: There was evidence that the earthquake caused both uplift and subsidence of some islands. However, even in areas where severe tsunami damage was recorded and corals were killed as a result of the event, there were still large areas of intact reef present, which will be able to repopulate the damaged reef in the future. Similar post-tsunami surveys in Thailand suggest that full recovery of these reefs should occur within the next 5-10 years. Over half of the reefs surveyed indicated that there had been no tsunami damage and only 15% of the sites surveyed indicated a high level of damage. Typically tsunami damage was observed as overturned coral colonies and tree debris on the reef. A total of 9 sites (8 offshore island sites and 1 mainland Aceh site) were surveyed over a distance of 650 km. Reef surveys were conducted using two methods: Manta Tow and the Reef Check Plus protocol. A collaborative expedition between the Khaled bin Sultan Living Oceans Foundation, Reef Check International and IUCN (World Conservation Union) to the northwest coast of Sumatra and Aceh Province, Indonesia, was conducted in October 2005. The coast of Sumatra was close to the earthquake epicenter and was the first to be struck, within one hour of the event. The huge earthquake and resulting tsunami which occurred on December 26, 2004 off the west coast of Sumatra resulted in regionally variable patterns of impact in and around the Indian Ocean basin. Indonesia Tsunami Impacts: Aceh Provence and North Sumatra ![]() Please find an excerpt of the full PDF below ![]() Indonesia Tsunami Impacts in Aceh Provence and North Sumatra Indonesia Tsunami Impacts in Aceh Provence and North Sumatra. ![]()
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