Tsunami simulations of mega-thrust earthquakes in the Nankai–Tonankai Trough (Japan) based on stochastic rupture scenarios
KAUST DepartmentPhysical Sciences and Engineering (PSE) Division
Earth Science and Engineering Program
KAUST Grant NumberBAS/1339-01-01
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AbstractIn this study, earthquake rupture models for future mega-thrust earthquakes in the Nankai–Tonankai subduction zone are developed by incorporating the main characteristics of inverted source models of the 2011 Tohoku earthquake. These scenario ruptures also account for key features of the national tsunami source model for the Nankai–Tonankai earthquake by the Central Disaster Management Council of the Japanese Government. The source models capture a wide range of realistic slip distributions and kinematic rupture processes, reflecting the current best understanding of what may happen due to a future mega-earthquake in the Nankai–Tonankai Trough, and therefore are useful for conducting probabilistic tsunami hazard and risk analysis. A large suite of scenario rupture models is then used to investigate the variability of tsunami effects in coastal areas, such as offshore tsunami wave heights and onshore inundation depths, due to realistic variations in source characteristics. Such investigations are particularly valuable for tsunami hazard mapping and evacuation planning in municipalities along the Nankai–Tonankai coast.
CitationGoda K, Yasuda T, Mai PM, Maruyama T, Mori N (2017) Tsunami simulations of mega-thrust earthquakes in the Nankai–Tonankai Trough (Japan) based on stochastic rupture scenarios. Geological Society, London, Special Publications: SP456.1. Available: http://dx.doi.org/10.1144/sp456.1.
SponsorsThe bathymetry and elevation data for the Nankai–Tonankai regions were provided by the Cabinet Office of the Japanese Government. This work was supported by the Engineering and Physical Sciences Research Council (EP/M001067/1), as well as by the King Abdullah University of Science and Technology (BAS/1339-01-01).
PublisherGeological Society of London
Except where otherwise noted, this item's license is described as Gold Open Access: This article is published under the terms of the CC-BY 3.0 license.