Global Assessment Report on Disaster Risk Reduction 2013
From Shared Risk to Shared Value: the Business Case for Disaster Risk Reduction


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Part I - Chapter 3
Airports are similarly at risk. In the United States of America, 58 airports are in areas exposed to destructive tsunamis; in Japan, there are 40. Airport exposure is most critical in small island states,
(Source: Geoscience Australia)xiv 
Box 3.2   Unveiling tsunami hazard in Indonesia
Figure 3.11   Tsunami hazard in Indonesia (500 year return period)
Indonesia has high tsunami risk. In the past 100 years, 24 tsunamis have killed more than 235,000 people. To better manage this risk, the national disaster management agency (Badan Nasional Pananggulangan Bencana, BNPB) and AusAID, through the Australia-Indonesia Facility for Disaster Reduction, formed a collaborative team representing Institut Teknologi Bandung, Indonesian Institute of Science (LIPI), BPPT, Badan Geologi, BMKG, TDMRC and Geoscience Australia to conduct an advanced and rigorous national tsunami hazard assessment.
Tsunami hazard maps are based on a probabilistic tsunami hazard assessment methodology, which allows the probability of tsunamis of different heights to be quantified. Maps produced allow disaster managers to:
  • Understand the chance of a tsunami reaching the coastline that would trigger an orange (‘tsunami’) or red (‘major tsunami’) tsunami warning;
  • Understand the maximum tsunami height over different return periods;
  • Rank the tsunami potential for each district in Indonesia to prioritise communities for tsunami mitigation activities;
  • Assess tsunami potential for each district to plan tsunami mitigation activities;
  • Determine earthquake fault lines that may have an impact on each district.
The assessment highlights that the West coast of Sumatra, the South coast of Java and Nusa Tenggara have the highest tsunami hazard (Figure 3.11).
whose economies may depend on a single airport or where all airports will be affected at the same time. In the French Polynesia archipelago, for example, a total of 26 airports are exposed.
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