Fumihiko Imamura – författare

The 1993 Southwest Hokkaido Earthquake of Magnitude 7. 9 (July 12, 22: 17 JST) caused serious tsunami disasters in the southwestern part of Hokkaido, particularly on Okushiri Island (a tiny island off the southwest coast of Hokkaido with a population of about 4,500 at the time of earthquake). Of 230 casualties, including 28 missing, about 200 deaths are attributable to the tsunami. We have conducted detailed field surveys of tsunami disasters to learn lessons from this costly natural experiment for the future prevention of similar tsunami disasters. Our field work was conducted in four surveys totaling 39 days. During the first field survey (July 16 through July 21, 1994), we worked mostly on the estimation of the subsidence of Okushiri Island during the earthquake. Hence, our main work on tsunami disasters initiated from the second field survey (July 31 through Aug. 15, 1994). Several groups have conducted detailed surveys of the distribution of tsunami runup height as measured from the level of sea water (TsUJI et al. , 1 994a, b; MATSUTOMI and SHUTO, 1994; GOTO et al. , 1994). Such a precise runup height distribution is essential for characterizing tsunami, including its overall size. Indeed, the height distribution is the fundamental data for inferring earthquake source parameters through the simulation of tsunami generation (TAKAHASHI et al. , 1994; IMAMURA et al. , 1994; TSUJI et al. , 1994a; SATAKE and TANIOKA 1994; ABE, 1994; TANIOKA et al. , in review).

In the three-year period of 1992-94, six disastrous tsunami (tidal wave) events occurred in the world with run-up heights exceeding five metres and the total casualties about 1500. After each of these tsunami disasters, international multi-disciplinary survey teams consisting of geologists, seismologists, oceanographers and engineers were dispatched to collect field data. Various research projects have been developed using these data to study earthquake source, generation, propogation and run-up processes of tsunamis, and deposition and erosions due to tsunamis. This text, which is reprinted from a special issue of PAGEOPH (Pure and Applied Geophysics), contains 26 papers addressing various aspects of these tsunami events. Papers include field survey reports of recent tsunamis in Indonesia, Japan, Philippines and Kurils, and observational and analytical works on tsunamis in the United States and Nicaragua.Research papers range from a seismological analysis of the tsunamigenic earthquake, hydrodynamic modelling of the recent tsunamis through numerical, analytical and physical methods, and studies of sand deposits from recent tsunamis and the implication for those generated by earthquakes and volcanic eruptions.

In the wake of the disastrous tsunami which struck Papua New Guinea in 1998, this volume presents 20 state-of-the-art contributions on landslide tsunamis, including earthquake characteristics and ground motions, modeling of landslides in geotechnical engineering, field surveys on land and at sea, simulations of past, present, and potential future tsunamis, and theoretical studies of tsunami generation by landslides.

The book is organized into two parts: the first part covers (i) the precious lessons obtained from recent actual tsunami disasters including the 2004 Indian Ocean Tsunami and 2011 Great East Japan Earthquake Disaster, (ii) fundamental knowledge of tsunami for our survival, and (iii) concludes the lessons learnt and listing measures for tsunami disaster mitigation for saving human lives. The second part presents tsunami from academic perspective in two chapters: one describes tsunami occurrence mechanism and near-shore behavior; the other mentions numerical simulation and forecasting of tsunami.

The book is organized into two parts: the first part covers (i) the precious lessons obtained from recent actual tsunami disasters including the 2004 Indian Ocean Tsunami and 2011 Great East Japan Earthquake Disaster, (ii) fundamental knowledge of tsunami for our survival, and (iii) concludes the lessons learnt and listing measures for tsunami disaster mitigation for saving human lives. The second part presents tsunami from academic perspective in two chapters: one describes tsunami occurrence mechanism and near-shore behavior; the other mentions numerical simulation and forecasting of tsunami.

This book provides comprehensive scientific information and knowledge survival tips on how to survive a tsunami. It is especially useful to those living (or about to live) in tsunami-prone areas, and to travelers who may visit such areas. The book is composed of two parts: the first consisting of three chapters on how to survive a tsunami by (i) describing precious lessons obtained from actual tsunami disasters, (ii) imparting fundamental knowledge of tsunami science for survival, and (iii) listing measures for tsunami disaster mitigation. The second part provides more detailed scientific knowledge on tsunamis and consists two chapters: one describes tsunami occurrence mechanism and near-shore behavior; the other mentions numerical simulation and tsunami forecasting. This book has been awarded the 2009 Book of the Year Award by the Japan Society of Civil Engineers.

This book provides comprehensive scientific information and knowledge survival tips on how to survive a tsunami. It is especially useful to those living (or about to live) in tsunami-prone areas, and to travelers who may visit such areas. The book is composed of two parts: the first consisting of three chapters on how to survive a tsunami by (i) describing precious lessons obtained from actual tsunami disasters, (ii) imparting fundamental knowledge of tsunami science for survival, and (iii) listing measures for tsunami disaster mitigation. The second part provides more detailed scientific knowledge on tsunamis and consists two chapters: one describes tsunami occurrence mechanism and near-shore behavior; the other mentions numerical simulation and tsunami forecasting. This book has been awarded the 2009 Book of the Year Award by the Japan Society of Civil Engineers.

This book presents the advancements in the disaster risk reduction and resilience building in the countries affected by the Indian Ocean Tsunami countries.