Tsunami disaster mitigation by integrating comprehensive countermeasures in Padang city, Indonesia

Fumihiko Imamura, Abdul Muhari, Erick Mas, Mulyo Harris Pradono, Joachim Post, Megumi Sugimoto

    Research output: Contribution to journalArticlepeer-review

    43 Citations (Scopus)

    Abstract

    This paper describes the results of a comprehensive analysis for tsunami disaster mitigation in Padang City, Indonesia. Assessment consists of several steps, starting from the construction of tsunami hazard maps based on the most probable earthquake scenario in the future. Results are then analyzed to determine the impact on residential population along potential evacuation routes. Next, from the standpoint of hazards, we move to the analysis of human's vulnerability during evacuation. The term "vulnerability" is associated with available evacuation time. Here, we conducted a static evacuation model using the GIS platform and a dynamic approach using multiagent paradigm. Results of evacuationmodeling suggest that some residents may not have enough time to leave the tsunami inundation area before the first wave comes. We therefore propose using relatively high buildings as vertical evacuation sites. One of potential candidates that survived from a devastated earthquake with 7.6 Mw in 2009 is selected to be further analyzed its antiseismic deficiencies based on design ground motion obtained from micro-tremor analysis and synthesized recorded wave in Padang. As a result, even though the building underwent some damage, the frame structure was able to withstand the shaking and keep the building from collapsing.

    Original languageEnglish
    Pages (from-to)48-64
    Number of pages17
    JournalJournal of Disaster Research
    Volume7
    Issue number1
    DOIs
    Publication statusPublished - 2012 Jan

    Keywords

    • Evacuation model
    • Ground motions
    • Tsunami casualty
    • Tsunami hazard

    ASJC Scopus subject areas

    • Safety, Risk, Reliability and Quality
    • Engineering (miscellaneous)

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