HR: 14:45h
AN: OS43A-04    [Abstracts]
TI: Sandy Deposits of the 2006 Java Tsunami
AU: * Setja Atmadja, C M
EM: Claudia.Maxcia@ait,ac.th
AF: Asian Institute of Technology, 58 Moo 9 Km.42 Paholyothin Highway, Klong Luang, Pathumthani, 12120, Thailand
AU: Yulianto, E
EM: ekoy001@yahoo.com
AF: Research Center for Geotechnology, Indonesian Institute of Sciences (LIPI), Kompleks LIPI Bld 70, Jl. Sangkuriang, Bandung, 40135, Indonesia
AB: A field reconnaissance was performed out a week after Java tsunami on July, last year. It focused on documentation of sedimentary deposit as the first step to study delineate tsunami history in extend to tsunami hazard assessments. In a region with tremendous tsunami thread, the 2006 Java tsunami still gave a shock with at least 650 death tolls at 300 km affected coast line. The slight felt shaking onshore and unobvious leading recession of sea water were probably the reason as these were the reverse indications of tsunami to the lessons learned from the great Sumatra 2004 event. In addition, although tsunami of similar size have struck the southern coast of Java at least twice in the last century, in 1921 and 1994, tsunami history and the potential threat is still unknown to local population. Three shore normal transects across coastal plain were made in the two affected sites to exhibit the recent tsunami deposit thickness, internal layering, and landward extent. During the documentation, we also discovered two additional sand beds at the end of 2006 deposit landward extent in greater depth. All this information may provides preliminary information to better identify the geologic traces of earlier Javanese tsunami which in turn may help constructing Java's tsunami history.
DE: 1862 Sediment transport (4558)
DE: 4564 Tsunamis and storm surges
SC: Ocean Sciences [OS]
MN: 2007 Joint Assembly