Le tsunami du 26 décembre 2004 : chronologie et reconstitution de la catastrophe dans la région de Banda Aceh

Abstract

We established an extensive database of tsunami field evidence in order to facilitate various numerical models of the 26 December 2004 tsunami in the Banda Aceh district of Sumatra, Indonesia. Inputs provided by 12 weeks of efforts during seven field trips include field measurements of runup, tsunami heights, flow depths, flow directions, and events’ chronology. We deliver detailed inundation maps of the western and northern coasts of Banda Aceh.About ten waves reached the coast. The maximum tsunami height reached 35 m during the third wave on flat areas and the maximum runup was 51 m measured on hill slope. This value is the highest runup ever measured in human history for a co-seismic tsunami event. The main hydrologic characteristic of the 26 December 2004 tsunami is the break of the main wave up to 3 km inland from the shoreline. The data collected, such as the numerous warning signs, could help further prevention actions.

New tsunami damage functions developed in the framework of SCHEMA project: application to European-Mediterranean coasts

“…Post-disaster measurements of water marks in Banda Aceh were made available by three teams: the French and Indonesian team of the TSUNARISQUE program (Lavigne et al, 2006(Lavigne et al, , 2009, the International Tsunami Survey Team (Borrero, 2005), and a Japanese team (Tsuji et al, 2005). These field surveys were carried out in January 2005.…”

“…Once the database of flow depths was established, we computed an interpolation of all field measures, also taking into account the inundation limits observed in Banda Aceh by JICA (Japan International Cooperation Agency, 2005) and TSUNARISQUE program (Lavigne et al, 2006).…”

Assessment of the tsunami hazard on the Algerian coast: Scenario study of a tsunami generated by an earthquake on the Bay of Algiers

“…The question test proposes to use the same principle of bathymetry described and illustrated in the previous paragraph (figure 3); the study area extends from 2.85° E to 3.29° E for latitude and 36.68° N to 37.38° N for the longitude. With the same parameters of the earthquake of our study (an earthquake of magnitude of 7.6 with the The results obtained were compared with the work on the study of a new tsunami hazard assessment scale for establishing a warning system for the bay of Algiers (Lavigne et al, 2011).…”

“…When approaching the coasts (points 1, 3, and 4), the speed of the tsunami and the wavelength decrease but its amplitude increases between the declining kinetic (velocity) energy and the increasing potential (wave height) energy (Lavigne et al, 2011).…”

Interdisciplinary research in hazards and disaster risk

“…The dynamics of such cooperation are not straightforward. In a large area affected by a single hazard event, very diverse impacts may be visible, implying very diverse responses for example (Lavigne et al 2011; Telford, Cosgrave and Houghton 2006). Here, the geography of science and its institutions is important: understanding each other across boundaries can be challenging (Donovan and Oppenheimer 2019) and typically requires work before a hazard event to build relationships.…”