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To investigate whether or not people at risk from the 26 December 2004 tsunamis could have had better warning of the event.

This paper examines short‐term actions related to warning following the earthquake and long‐term actions related to setting up an Indian Ocean tsunami warning system prior to the disaster. The evidence is presented in the context of the long‐term processes needed to create and maintain successful warning systems.

The evidence shows that, based on the knowledge and procedures existing at the time, any expectation of effective warning prior to the tsunamis was unreasonable. On 26 December 2004, as much action was taken as feasible. Prior to the catastrophe, the Indian Ocean tsunami risks were acknowledged but no warning systems were implemented because other priorities were deemed to be higher.

This paper presents a snapshot of the complex issue of warning system development and implementation. Each national and regional case study deserves detailed attention. Further work would add to a more complete understanding of conditions before 26 December 2004.

This case study provides a reminder that planning for warnings must be done before extreme events, not following them. Successful warning systems require investment in a long‐term, ongoing process involving pre‐event planning, education, and awareness.

This paper provides an initial attempt at evaluating Indian Ocean tsunami warnings on 26 December 2004.

The main objective of this study is to develop a tsunami emergency response plan for a coastal community by adopting a community‐based disaster preparedness approach.

A multi‐strategy research design utilizing both quantitative and qualitative methods was used. The weaknesses and strengths of the different agencies involved in responding to the 2004 tsunami disaster were identified through a focus group discussion. A survey was used to assess the preparedness of the community. Tsunami awareness and education were imparted through lectures, sermons, radio talk shows, informal briefings, workshops and printed materials. Tsunami evacuation routes, safe zones, warning protocols and evacuation plans were finalized through a consultation process with the community. A tsunami evacuation plan was verified during a table‐top exercise and was tested through a drill.

It is evident from the study that a community‐based approach (where the local community is taken as the primary focus of attention in disaster reduction) to tsunami mitigation and preparedness is viable. This process has provided an opportunity for tapping traditional organizational structures and mechanisms (including formal and informal community leaders) and capability‐building activities with the community disaster committees and volunteers.

Tsunami 2004 is the first ever tsunami disaster experienced in the country and thus the study provides significant lessons learned from the event. The community‐based approach to disaster preparedness is not the current practice in the country. Thus, the study demonstrates that the approach is a viable tool to enhance community preparedness to tsunami and other types of disasters as well.

To provide a review of the general aspects of tsunamis and the specific aspects of the 2004 tsunami impacts on the coastal areas of India and surrounding islands.

The approach is a general discussion of the 2004 tsunami and its effects in areas in South East Asia, followed by the specific impacts in the Andaman and Nicobar Islands, including the damage to water supply and power systems, and a situation analysis of the communities, land and housing.

The impact of the 2004 tsunami highlights the vulnerability of the coastal areas and islands of India. The multi‐hazard situation existing on the sea coast of the mainland as well as in the islands of Andaman and Nicobar require a holistic multi‐hazard mitigation approach as a long term measure. The recovery programs presently in hand are being planned taking the multi‐hazard situation in view, so as to provide protection from such hazards in future.

Provides a review of the effects of the 2004 tsunami in the coastal areas and islands near India.

This paper seeks to demonstrate a unique project with tsunami height poles and disaster education to maintain disaster awareness for several decades in the area where the Indian Ocean tsunami caused significant damage in 2004.

A case study approach is utilized combined with field observation, participatory observation and a general literature review of relevant studies and secondary sources.

The major finding is that the unique device of 85 tsunami height poles was brought from the outside to Banda Aceh city so that people may remember the impact of the tsunami over a longer period of time when awareness is likely to reduce. As local people gradually understood the significance of the poles, the number of local cooperators increased and the project's impact improved significantly.

The long‐term impact of the disaster resilience is yet to be verified in Banda Aceh city. The field research results of the project's process and impact immediately connected with grassroots practice with people to maintain disaster awareness and resilence for the city. The practice to which the Hyogo Framework for Action gives priority connects with building understanding of tsunami risk and disaster awareness with local knowledge, assimilated by preserving disaster records and visualizing disaster.

The paper describes a field‐based project in Banda Aceh city and the suburb, Indonesia, which was implemented in cooperation with local communities, local non‐government organizations, local school boards and specialists from Kyoto University, Japan. Thus, the study findings are directly related to its practical implications.

The paper highlights how the device of 85 tsunami height poles which were built in order to visualize disaster and maintain disaster awareness under the concept, blended an expert's unique idea with old Japanese knowledge in Banda Aceh city by the local community in Indonesia in June 2007. The paper shows that local ideas maintain living knowledge and lessons with sustainable development in the local place after the project had finished and recommendations can apply to the other tsunami affected areas.

This paper aims to identify the specific parameters in developing a framework to assess the structural vulnerability of hospital buildings in Sri Lanka against tsunami. Along with that, the adaptability and suitability of the existing global frameworks in the Sri Lankan context are to be assessed.

In this study, Papathoma tsunami vulnerability assessment (PTVA)-4 model was used as the base in developing the abovementioned framework. Its adaptability and suitability in assessing hospital buildings in the country were considered under the case studies conducted in six selected hospitals in the Southern coastal belt of Sri Lanka. Under these case studies, data collection was done using the Rapid Visual Screening method where assessments were carried out through visual observations. The collected data were analyzed according to the aforementioned model for its suitability in evaluating the structural vulnerability of hospitals in Sri Lanka, against tsunami hazard.

From these case studies, it was identified that the use of the PTVA-4 model alone was insufficient to assess the structural vulnerability of the hospital buildings against the tsunami. Therefore, the model must be further improved with more relevant assessing attributes related to hospitals, suitable for the Sri Lankan context.

This paper identifies the specific structural assessment parameters required in assessing hospitals in the coastal belt of Sri Lanka, considering tsunami as the main hazard condition.

This paper aims to provide a general overview of the international Tsunami warning system mandated by the United Nations, particularly on cataloging past studies and a strategic focus in the Indian Ocean, particularly on the Bay of Bengal region.

Present research assimilates the secondary non-classified data on the Tsunami warning system installed in the Indian Ocean. Qualitative review and exploratory research methodology have been followed to provide a holistic profile of the Tsunami rarly warning system (TEWS) and its role in coastal resilience.

The study finds the need for strategic focus to expand and interlink regional early warning cooperation mechanisms and partnerships to enhance capacities through cooperation and international assistance and mobilize resources necessary to maintain the TEWS in the Indian Ocean region. The enhanced capacity of the TEWS certainly improves the resilience of Indian Ocean coastal communities and infrastructures.

The study is original research and useful for policy planning and regional cooperation on data interlinkages for effective TEWS in the Indian Ocean region.

The purpose of this paper is to present an assessment of the potential tsunamigenic seismic hazard to Sri Lanka from all active subduction zones in the Indian Ocean Basin.

The assessment was based on previous studies as well as past seismicity of the subducion zones concerned.

Accordingly, four seismic zones capable of generating teletsunamis that could reach Sri Lanka have been identified, namely, Northern Andaman‐Myanmar, Northern Sumatra‐Andaman and Southern Sumatra in the Sunda trench and Makran in the Northern Arabian Sea. Moreover, plausible worst‐case earthquake scenarios and respective fault parameters for each of these seismic zones have been recommended.

However, other potential tsunami sources such as seismic activity in the near‐field, submarine landslides and volcanic eruptions have not been considered.

Numerical simulations of tsunami propagation have been carried out for each of the four scenarios in order to assess the potential impact along the coastline of Sri Lanka. Such information relating to the spatial distribution of the likely tsunami amplitudes and arrival times for Sri Lanka would help authorities responsible for evacuation to make a better judgment as to the level of threat in different areas along the coastline, and act accordingly, if a large earthquake were to occur in any of the subduction zones in the Indian Ocean.

In the absence of comprehensive probabilistic assessments of the tsunami hazard to Sri Lanka, this paper's recommendations would provide the necessary framework for the development of deterministic tsunami hazard maps for the shoreline of Sri Lanka.

Prior research has investigated legitimation strategies in corporate annual reports in the for-profit sector. The purpose of this paper is to investigate this phenomenon in an NGO environment. It investigates Australian overseas aid agencies’ responses to criticism of the relief effort following the Indian Ocean tsunami in 2004. It aims to determine whether voluntary annual report disclosures were reflective of impression management and/or of the discharge of functional accountability.

The paper applies content analysis to compare the structure and content of the annual reports of 19 Australian overseas aid agencies before and after the Indian Ocean tsunami.

Results suggest voluntary disclosure in annual reports significantly increased post-tsunami and was more consistent with impression management activity rather than functional accountability suggesting a response to the legitimacy challenge. The use of impression management tactics differed with agency size, with larger agencies using ingratiation in order to appear more attractive while smaller ones promoted their particular achievements.

This paper makes a contribution by extending prior impression management and legitimacy literature to an NGO environment. It has implications for the development of these theories as it looks at organisations where the stakeholders are different from the for-profit sector and profits are not the main concern. It raises issues about the concept of accountability in the NGO sector, and how the nature of organisation reporting is changing to address the challenges of a sector where access to funds is highly competitive.

This paper aims to describe a multi-scenario assessment of the seismogenic tsunami hazard for Bangladesh from active subduction zones in the Indian Ocean region. Two segments of the Sunda arc, namely, Andaman and Arakan, appear to pose a tsunamigenic seismic threat to Bangladesh.

High-resolution numerical simulations of tsunami propagation toward the coast of Bangladesh have been carried out for eight plausible seismic scenarios in Andaman and Arakan subduction zones. The numerical results have been analyzed to obtain the spatial variation of the maximum tsunami amplitudes as well as tsunami arrival times for the entire coastline of Bangladesh.

The results suggest that the tsunami heights are amplified on either side of the axis of the submarine canyon which approaches the nearshore sea off Barisal in the seaboard off Sundarban–Barisal–Sandwip. Moreover, the computed tsunami amplitudes are comparatively higher north of the latitude 21.5o in the Teknaf–Chittagong coastline. The calculated arrival times indicate that the tsunami waves reach the western half of the Sundarban–Barisal–Sandwip coastline sooner, while shallow water off the eastern half results in a longer arrival time for that part of the coastline, in the event of an earthquake in the Andaman seismic zone. On the other hand, most parts of the Chittagong–Teknaf coastline would receive tsunami waves almost immediately after an earthquake in the northern segment of the Arakan seismic zone.

The present assessment includes probabilistic measures of the tsunami hazard by incorporating several probable seismic scenarios corresponding to recurrence intervals ranging from 25 years to over 1,000 years.

The purpose of this paper is to deliver a detailed analysis of the functioning of upstream–downstream interface process of the tsunami early warning and mitigation system in Sri Lanka. It also gives an understanding of the social, administrative, political and cultural complexities attached to the operation of interface mechanism, and introduces an analytical framework highlighting the significant dynamics of the interface of tsunami early warning system in Sri Lanka.

Through the initial literature review, a conceptual framework was developed, highlighting the criteria against which the interface process can be assessed. This framework was used as the basis for developing data collection tools, namely, documentary analysis, semi-structured interviews and observations that focused on the key stakeholder institutions in Sri Lanka. Thematic analysis was used to analyze the data according to the conceptual framework, and an improved and detailed framework was developed deriving from the findings.

The manner in which the interface mechanism operates in Sri Lanka’s tsunami early warning system is discussed, providing a detailed understanding of the decision-making structures; key actors; standardisation; technical and human capacities; socio-spatial dynamics; coordination among actors; communication and information dissemination; and the evaluation processes. Several gaps and shortcomings were identified with relation to some of these aspects, and the significance of addressing these gaps is highlighted in the paper.

A number of recommendations are provided to address the existing shortcomings and to improve the overall performance of tsunami warning system in Sri Lanka.

Based on the findings, a framework was developed into a more detailed analytical framework that depicts the interface operationalisation in Sri Lanka, and can also be potentially applied to similar cases across the world. The new analytical framework was validated through a focus group discussion held in Sri Lanka with the participation of experts and practitioners.