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Open AccessNew source model for the 1771 Meiwa tsunami along the southern Ryukyu Trench inferred from high-resolution tsunami calculation
The 1771 Meiwa tsunami which struck the southern Ryukyu Islands (Sakishima Islands) had greater than 22 m run-up height, leaving about 12,000 casualties in its wake. At many places, the tsunami inundation or l...
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Article
Open AccessQuantification of the spatial distribution of individual mangrove tree species derived from LiDAR point clouds
Mangrove forests have unquestionably high environmental and ecological value. Mangrove trees are believed to have habitat zonation that is controlled mainly by the relative sea level. However, earlier discussi...
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Article
Open AccessA new point cloud processing method unveiled hidden coastal boulders from deep vegetation
Huge coastal boulders are useful to reconstruct the size of past extreme waves such as those associated with tsunamis and storms using inverse-type or forward-type boulder transport models. These models fundam...
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Article
Open AccessTo what extent tsunami source information can be extracted from tsunami deposits? Implications from the 2011 Tohoku-oki tsunami deposits and sediment transport simulations
A quantitative understanding of paleotsunamis is a significant issue in tsunami sedimentology. Onshore tsunami deposits, which are geological records of tsunami inundation, are used to reconstruct paleotsunami...
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Open AccessTwo-step movement of tsunami boulders unveiled by modified viscous remanent magnetization and radiocarbon dating
Massive boulders in landslide and tsunami deposits are prominent geomorphic features in various landscapes. Tracking their movement history is important for reconstructing past geologic dynamics; however, the ...
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Article
Open AccessPaleotsunami history of Hachinohe, northern Japan: a multiproxy analysis and numerical modeling approach
Paleotsunami studies along the Pacific coast of Tohoku, northern Japan, have been considerably developed recently, particularly after the massive impact of the 2011 Tohoku-oki tsunami. Nevertheless, in the sou...
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Open AccessThreshold flow depths to move large boulders by the 2011 Tohoku-oki tsunami
Around the world, numerous coastal boulders with weight of few thousand tons are suspected to have been transported by very large tsunamis, although their origins remain enigmatic. For clarifying origins of th...
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Open AccessThree thousand year paleo-tsunami history of the southern part of the Japan Trench
This study conducted a field survey and multiproxy analyses on sediment cores retrieved from the Kobatake-ike pond in Choshi City, Chiba Prefecture, Japan. Kobatake-ike pond is located at a high elevation (i.e...
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Article
Open AccessMillennial paleotsunami history at Minna Island, southern Ryukyu Islands, Japan
Huge tsunami waves have repeatedly bombarded the southern end of the Ryukyu Islands (Miyako and Yaeyama Islands, southwestern Japan) at several-hundred-year intervals. Therefore, clarifying the islands’ paleot...
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Article
Open AccessMillennial scale maximum intensities of typhoon and storm wave in the northwestern Pacific Ocean inferred from storm deposited reef boulders
Typhoons and associated storm waves in the northwestern Pacific Ocean commonly cause coastal disasters. The possibility remains that an even stronger typhoon than the strongest one observed to date might have ...
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Article
Open AccessSpatial distribution and sources of tsunami deposits in a narrow valley setting - insight from 2011 Tohoku-oki tsunami deposits in northeastern Japan
Sedimentary processes and spatial distributions of tsunami deposits in valleys have poorly been understood despite many paleo-tsunami deposits have recently been discovered from sedimentary sequences in valley...
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Article
Open AccessLarge tsunamis reset growth of massive corals
Corals at Ishigaki Island, Japan, are characterized by their high species diversity. Not only are they struck by storm waves generated annually by typhoons, the corals, especially the massive ones, in the frin...
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The Role of Open Innovation and Platform in Agriculture
Growth in the industrialization of agriculture and food industry is important. In Japan, policies such as new technology development and sixth industrialization have attempted to develop agricultural industrie...
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Article
Rapid recovery of life at ground zero of the end-Cretaceous mass extinction
The Cretaceous/Palaeogene mass extinction eradicated 76% of species on Earth1,2. It was caused by the impact of an asteroid3,4 on the Yucatán carbonate platform in the southern Gulf of Mexico 66 million years ago
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Reference Work Entry In depth
Tsunamis
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Chapter
Restoration Measures After the 2011 Tohoku-oki Tsunami and Their Impact on Tsunami Research
Following the 2011 Tohoku-oki tsunami, many studies were carried out to provide insights into processes involved with this event, as well as to assess its impact on the landscape and the environment, evaluate ...
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Article
Open AccessPaleo-tsunami history along the northern Japan Trench: evidence from Noda Village, northern Sanriku coast, Japan
Throughout history, large tsunamis have frequently affected the Sanriku area of the Pacific coast of the Tohoku region, Japan, which faces the Japan Trench. Although a few studies have examined paleo-tsunami d...
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Open AccessSource model of the 1703 Genroku Kanto earthquake tsunami based on historical documents and numerical simulations: modeling of an offshore fault along the Sagami Trough
The 1703 Genroku Kanto earthquake and the resulting tsunami caused catastrophic damage in the Kanto region of Japan. Previous modeling of the 1703 earthquake applied inversion analyses of the observed terrestr...
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Living Reference Work Entry In depth
Tsunamis
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Article
Open AccessA Decade After the 2004 Indian Ocean Tsunami: The Progress in Disaster Preparedness and Future Challenges in Indonesia, Sri Lanka, Thailand and the Maldives
The 2004 Indian Ocean tsunami was one of the most devastating tsunamis in world history. The tsunami caused damage to most of the Asian and other countries bordering the Indian Ocean. After a decade, reconstr...
