Yuliantom)

An International Tsunami Survey Team (ITST) conducted field surveys of tsunami effects on the west coast of northern and central Sumatra and offshore islands 3-4 months after the December 26th 2004 tsunami. Study sites spanned 800 km of coast from Breuh Island north of Banda Aceh to the Batu Islands, and included 22 sites in Aceh Province in Sumatra and on Simuelue Island, Nias Island, the Banyak Islands, and the Batu Islands. Tsunami runup, elevation, flow depth, inundation distance, sedimentary characteristics of deposits, nearshore bathymetry, and vertical land movement (subsidence, uplift) were studied