Noé CARLES, Avignon Université, France
Péroche MATTHIEU, Université Paul-Valéry Montpellier 3, France
In the last decades, tsunami hazards in Mediterranean sea have been exposed as from different studies (Soloviev et al., 2000 ; Papadopoulous, 2000 ; Maramai et al., 2019 ; Lambert and Terrier, 2011). In France, the awareness of tsunami has allowed an upgrade of the sea monitoring networks integrating works and studies undertaken by the NEAMTW (North-Eastern Atlantic, Mediterranean & Connected Seas Tsunami Early Warning and Mitigation system). It allows the creation of a new tsunami warning center (CENalt), managed since 2012 by the CEA (Commissariat à l’Energie Atomique). One of the main objectives of the warning center is to be responsive in the broadcast of a warning message to French authorities with operational needs information, such as tsunami wave travel time by department and tsunami source area, as soon as possible (maximum delay of 15 minutes after the detection). Tusnami early warning really need to be enough efficient to respond quick and coordinated in view of the strict time-limits laid down for the conduct of evacuation procedure. But to date, none « real » alert has been activated among the populations. Annual tsunami exercice conducted every year can provide a better estimation of the amount of time required for each stage of the early warning chain. However, after the message has been disseminated for each municipality concerned, how long will it takes to activate their warning system dedicated (sirens, automatic calling machines, social networks) and what will be the time-response of the local population before to get safety. From this purpose, the studie’s objective is to put forward new evaluation of theorical time expected for a effective management of the whole evacuation process (to the hazard detection until the sheltering of populatons) upon which return from tsunami regional exercice and field survey.
Mots clés : tsunami|mediterranean sea|time-response|early warning|evacuation
A105379NC