A huge magnitude 9.0 earthquake occurred besides western coast of Sumatra Island

Indonesia on December 26

2004. The earthquake created the huge tsunami in many countries along Indian Ocean

such as Indonesia

Sri Lanka

Thailand

India and so on. Tsunami disaster damage in Banda Arch province of Indonesia is one of most serious events in the world. In order to assess the tsunami disaster damage

a scene of Disaster Monitoring Consortium （DMC） satellite image received on January 7

2005

after the catastrophe

and several Landsat7 ETM+ images received before earthquake were collected. Based on Remote Sensing and GIS technology

the tsunami disaster monitoring and quick assessment have been carried out. The result shows that the western coast of Sumatra Island in Arch province

near earthquake center

suffered more seriously from tsunami disaster

and the eastern coast damage is insignificantly. In the whole Arch province

the loss of Banda Arch city

capital of Arch

is most serious. About 483 square kilometers area had been flooded due to tsunami in western coast of Sumatra island of Arch province

including 26 square kilometers urban building area

430 square kilometers rural area and 27 square kilometers water area

such as wetland

lake and pond. In the end

Digital Elevation Model（DEM） is used to analyze the relation between terrain and tsunami destruction. The result shows that the elevation of flooded area due to tsunami

in general

is below 20 meters.