Tsunamis: Case Studies and Recent DevelopmentsKenji Satake Twenty papers comprise a timely review of state-of-the-art tsunami research. Various approaches are taken to study tsunamis: field-surveys of recent tsunamis; analysis of tide-gauge records; numerical simulations of tsunami generation and propagation, tank experiments, and geological studies of tsunami deposits. The papers are also divided into two parts: case studies and recent developments. The first part reports on tsunamis generated by volcanic eruptions and earthquakes around the Pacific Ocean. The papers include summaries of post-tsunami surveys in the last decade; reports on the two tsunamis in 2003 which occurred in Fiordland in New Zealand and Tokachi-oki, Japan; reports and mechanism of tsunamis from the 1994 Rabaul, 1883 Krakatau and 1741 Oshima-Oshima eruptions; resonance and delayed peaks observed on the Sanriku coast of northern Japan; studies of tsunami deposits in Japan and Russia used to infer paleotsunamis along the Kuril trench; estimation of tsunami energy along the Aleutian-Alaska and Canadian coast based on historical data. The second part reports recent developments in numerical computations, monitoring, and assessments of coastal hazards. The papers include assessments of future tsunami impacts, based on the past tsunami or marine survey data, for the Ecuador, Portuguese and Korean coasts; adjoint technique for waveform inversion of source parameters; experimental design to study underwater landslides; numerical and experimental studies to evaluate the effects of coastal vegetation and control forests on tsunamis; proposals of new tsunami monitoring techniques using acoustic waves and electromagnetic signals. |
Contents
Perspective on a decade of posttsunami surveys | 1 |
The Fiordland earthquake and tsunami New Zealand 21 August 2003 | 31 |
Timing and scale of tsunamis caused by the 1994 Rabaul eruption east New Britain Papua New Guinea | 43 |
Analysis of tidegauge records of the 1883 Krakatau tsunami | 57 |
the 1741 OshimaOshima tsunami | 79 |
Tsunami resonance curve from dominant periods observed in bays of Northeastern Japan | 97 |
Delayed peaks of tsunami waveforms at Miyako from earthquakes east off Hokkaido | 115 |
Field survey of the 2003 Tokachioki earthquake tsunami and simulations at the Ootsu harbor located at the Pacific coast of Hokkaido Japan | 135 |
Mapping the possible tsunami hazard as the first step towards a tsunami resistant community in Esmeraldas Ecuador | 203 |
Progresses in the assessment of tsunami genesis and impacts around the Portuguese | 217 |
Quick tsunami forecasting based on database | 231 |
Adjoint inversion of the source parameters of nearshore tsunamigenic earthquakes | 241 |
a unified approach | 259 |
Effects of coastal forest on tsunami hazard mitigation a preliminary investigation | 279 |
Fluid force on vegetation due to tsunami flow on a sand spit | 293 |
a possibility of early location of oceanic earthquake and local tsunami warning | 305 |
Variability among tsunami sources in the 17th21st centuries along the southern Kuril trench | 157 |
Holocene tsunami traces on Kunashir Island subduction zone | 171 |
Distribution of cumulative tsunami energy from AlaskaAleutians to Western Canada | 193 |
theory and recommendations | 319 |
341 | |
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Common terms and phrases
27th August Aleutian amplitude Chilean tsunami coastal forest coefficient delayed peak diatoms dominant period Earth Planet edge wave equations eruption Esmeraldas estimated fault parameters field survey forest density forest width Geophys grid harbor Hokkaido Holocene horizontal Imamura initial inundation depth inundation heights inversion Island Japan Krakatau Kunashir Kunashir Island Kushiro landslide located main shock marine maximum minutes Miyako Nanayama numerical simulation observed Ocean Okal Ootsu Ootsu-harbor Pacific Papua New Guinea peat pumice Rabaul region run-up heights sand layers Sanriku Sanriku Coast Satake sea bottom sea level sea surface seismic excitation Shimokita Peninsula shown in Figure signals slip distribution Synolakis Tanioka Tavurvur tephra tide gauge Tokachi Tokachi-harbor tsunami arrival tsunami deposits tsunami events tsunami hazard tsunami heights tsunami period tsunami propagation Tsunami records tsunami reduction tsunami source tsunami wave two-layer model velocity vertical volcano Vulcan volcano wave making resistance