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Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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Volume 11, issue 1
Nat. Hazards Earth Syst. Sci., 11, 67–82, 2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: The GITEWS Project (German-Indonesian Tsunami Early Warning...

Nat. Hazards Earth Syst. Sci., 11, 67–82, 2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 05 Jan 2011

Research article | 05 Jan 2011

Tsunami risk assessment in Indonesia

G. Strunz1, J. Post1, K. Zosseder1, S. Wegscheider1, M. Mück1, T. Riedlinger1, H. Mehl1, S. Dech1, J. Birkmann2, N. Gebert2, H. Harjono3, H. Z. Anwar3, Sumaryono1,2,4, R. M. Khomarudin1,2,5, and A. Muhari6 G. Strunz et al.
  • 1German Remote Sensing Data Center, German Aerospace Center (DLR), Oberpfaffenhofen, Germany
  • 2United Nations University, Institute for Environment and Human Security (UNU-EHS), Bonn, Germany
  • 3Indonesian Institute of Sciences (LIPI), Research Center for Geotechnology, Bandung, Indonesia
  • 4National Coordinating Agency for Surveys and Mapping (BAKOSURTANAL), Cibinong, Indonesia
  • 5National Institute of Aeronautics and Space (LAPAN), Jakarta, Indonesia
  • 6Ministry of Marine Affairs and Fisheries (DKP), Jakarta, Indonesia

Abstract. In the framework of the German Indonesian Tsunami Early Warning System (GITEWS) the assessment of tsunami risk is an essential part of the overall activities. The scientific and technical approach for the tsunami risk assessment has been developed and the results are implemented in the national Indonesian Tsunami Warning Centre and are provided to the national and regional disaster management and spatial planning institutions in Indonesia.

The paper explains the underlying concepts and applied methods and shows some of the results achieved in the GITEWS project (Rudloff et al., 2009). The tsunami risk assessment has been performed at an overview scale at sub-national level covering the coastal areas of southern Sumatra, Java and Bali and also on a detailed scale in three pilot areas. The results are provided as thematic maps and GIS information layers for the national and regional planning institutions. From the analyses key parameters of tsunami risk are derived, which are integrated and stored in the decision support system of the national Indonesian Early Warning Centre. Moreover, technical descriptions and guidelines were elaborated to explain the developed approach, to allow future updates of the results and the further development of the methodologies, and to enable the local authorities to conduct tsunami risk assessment by using their own resources.

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