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Contiguous rupture areas of two Nankai Trough earthquakes revealed by high‐resolution tsunami waveform inversion

We have developed a new method for inverting tsunami waveforms that reveals considerable detail in megathrust slip during subduction zone earthquakes. Previous methods have ensured compliance with…
Wiley (opens in a new tab)

The slip distribution of the 1946 Nankai earthquake estimated from tsunami inversion using a new plate model

Abstract A new model for the shape of the Philippine Sea Plate (PSP) subducting beneath southwest Japan was constructed by combining marine seismic survey results and seismicity data. This resulted…
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A cause of rupture segmentation and synchronization in the Nankai trough revealed by seismic imaging and numerical simulation

[1] A giant earthquake occasionally occurs in a subduction zone owing to a simultaneous rupture in adjacent segments which have been previously ruptured by large earthquakes. However, it is still…
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Parallel Implementation of Dispersive Tsunami Wave Modeling with a Nesting Algorithm for the 2011 Tohoku Tsunami

This study investigated a parallelized approach for dispersive tsunami wave modeling and incorporated the three-dimensional shape of buildings and structures led to improved modeling of tsunami inundation.
Springer Nature (opens in a new tab)

Development and application of an advanced ocean floor network system for megathrust earthquakes and tsunamis

Japan is prone to great earthquakes because of its position near two different subduction zones. The Philippine Sea plate subducts from the southeast, and the Pacific plate subducts from the east.…
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High precision slip distribution of the 1944 Tonankai earthquake inferred from tsunami waveforms: Possible slip on a splay fault

Abstract Inversion of tsunami waveforms is a well-established technique for estimating the slip distributions of subduction zone earthquakes, with some of the most detailed results having been…
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Offshore geodetic data conducive to the estimation of the afterslip distribution following the 2003 Tokachi-oki earthquake

A cable-based seafloor observatory located offshore of Hokkaido, Japan, provides the world's first direct observation of offshore post-seismic displacement. After removing thermal noise, this data is…
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Accurate numerical simulation of the far-field tsunami caused by the 2011 Tohoku earthquake, including the effects of Boussinesq dispersion, seawater density stratification, elastic loading, and…

This article was published in the Journal of Ocean Modelling [© 2017 Elsevier Ltd] and the definite version is available at : http://doi.org/10.1016/j.ocemod.2017.01.002 The Journal's website is at:…
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A numerical simulation of earthquake cycles along the Nankai Trough in southwest Japan: lateral variation in frictional property due to the slab geometry controls the nucleation position

Abstract The occurrence pattern of historical great earthquakes along the Nankai Trough indicates the existence of rupture segments that seem to correlate with 100-km-scale lateral variation in the…
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Compound fault rupture during the 2004 off the Kii Peninsula earthquake (M 7.4) inferred from highly resolved coseismic sea-surface deformation

For a tsunami inversion analysis, we incorporated a new technique that uses many Green’s functions to improve model spatial resolution. Since this method precisely reproduces observed tsunami…
Springer Nature (opens in a new tab)
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