Post-tsunami Indonesia: An Enquiry into the Success of Interface in Indonesian Tsunami Early Warning System

Abstract

As a result of the massive death and destruction caused by the 2004 Indian Ocean tsunami, developing effective disaster preparedness strategies became a priority among countries in the region. The Indian Ocean end-to-end tsunami warning and mitigation system was established in the years following the tsunami and became fully operational in 2013. A tsunami warning system is typically divided into two stages: upstream and downstream. The former deals with detecting the earthquake and predicting the tsunami, and the latter focusses on disseminating the tsunami warning and evacuating people. Between the upstream and downstream, there is an interface, where the tsunami information is evaluated at the national level, a decision to issue a warning is taken, and an official evacuation order can be given. The operation of interface mechanism differs across countries, depending on specific political, social, cultural, and geographical circumstances. A detailed study of four countries in the Indian Ocean region was undertaken to understand the technical, legal, and socio-cultural complexities that occur during operationalisation of the interface. The findings of the Indonesian case study and a detailed analysis of the interface arrangements in the Indonesian tsunami early warning system (Ina-TEWS) are presented in this chapter. An initial literature review was carried out, and a conceptual framework was developed. Data collection was carried out using interviews and focus group discussions. Descriptive and content analysis methods were used for data analysis and

A Fuzzy-Logic Approach for Optimized and Cost-Effective Early Warning System for Tsunami Detection

“…The former is the detection of the earthquake and the prediction of a tsunami, and the latter stage is the warning and evacuation of people [2]. A tsunami system does require both technical and socio-economic factors for development [7]. Therefore, the economic capacity of any country and/or region is an important factor when designing and building a tsunami system considering all the requirements and countermeasures [8].…”