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IUGG XXIV General Assembly July 2-13, 2007 Perugia, Italy (S) - IASPEI - International Association of Seismology and Physics of the Earth's Interior JSS002 Oral Presentation 1752 Overview of the restoration program from the giant earthquakes and tsunamis project Prof. Teruyuki Kato Earthquake Research Institute The University of Tokyo IAG Kenji Satake, Koshun Yamaoka, Fumihiko Imamura, Hirokazu Iemura A giant earthquake occurred off Sumatra Island, Indonesia and generated large tsunami in Indian Ocean on December 26, 2004. This event caused devastating disasters in the countries surrounding the Indian Ocean. Motivated by this event, we have initiated a multi-disciplinary and international research project called the Restoration Program from the Giant Earthquakes and Tsunamis which is supported by the Japanese government. The ultimate goal of the project is to propose an effective measure to mitigate disasters from giant earthquakes and tsunamis such as the 2004 event. We tackle this problem by interdisciplinary and international approaches. Synergetic works among different academic disciplines are important for ultimate restoration from the disasters due to earthquakes and tsunamis. The knowledge on the mechanism of earthquakes and tsunamis is to be utilized to elaborate the software and hardware system of early warning system and to construct a strong and resilient city against earthquake and tsunami. Education and outreach of such basic knowledge of earthquakes and tsunamis, function of early warning system and earthquake resistant construction are indispensable for effective mitigation of human casualties in a society. The project consists of four sub-theme of natural science, civil engineering and social science as follows: 1) Clarification of mechanism of the giant earthquake and tsunami and its prediction: This sub-theme tries to clarify the mechanism of giant earthquake and tsunami using various geophysical schemes such as seismology, paleoseismology and geodesy.2) Research on developing human resource for enforcing the human power against the natural disaster: This sub-theme is mostly devoted to build capacities of human power for resilient community against earthquake and tsunami through education and outreach.3) Research on effective use of tsunami warning system and mitigation of tsunami hazard: This sub-theme tries to propose an effective measure of monitoring, transmitting and disseminating tsunami information in real time manner for tsunami disaster mitigation.4) Restoration program and city planning from the disasters due to giant earthquakes and tsunamis: This sub-theme searches for coastal disasters due to earthquake and tsunami and tries to propose an effective plan for restoration from the earthquake and tsunami.Each sub-theme is composed of 3-5 research subjects and the program strongly encourages synergetic efforts among international community of related scientists through international workshops and symposia as well as related field researches. The term of the project is three years from April 2005 to March 2008, so that the project will terminate in the next year. However, we try to build up long lasting international researchers community for earthquake and tsunami, particularly in the Asian countries, toward our ultimate goal of mitigating disasters related to giant earthquakes and tsunamis that may occur in other areas along the subducting plate boundaries over the globe. Keywords: earthquake, tsunami, restoration

IUGG XXIV General Assembly July 2-13, 2007 Perugia, Italy (S) - IASPEI - International Association of Seismology and Physics of the Earth's Interior JSS002 Oral Presentation 1753 A tsunami hazard model for New Zealand Dr. William Power Natural Hazards GNS Science Gaye Downes, Mark Stirling, Kelvin Berryman, Warwick Smith How does the risk of tsunami compare to that from other natural hazards, and which locations are most vulnerable These questions were frequently asked in the aftermath of the 2004 Boxing Day tsunami, and in this presentation we describe our attempts to answer them. We developed a probabilistic model for estimating the tsunami hazard along the coast of New Zealand due to plate-interface earthquakes around the Pacific Rim and local earthquakes around New Zealand. To do this we constructed statistical and physical models for several stages in the process of tsunami generation and propagation, and developed a method for combining these models to produce hazard estimates using a Monte Carlo technique. These models and the results we obtained from them will be described. Keywords: tsunami, probabilistic, hazard

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