Professor
By analyzing observational data of various earthquakes ranging from huge earthquakes to minor ones, I work to clarify dynamic rupture process of earthquakes and structural heterogeneity around seismic sources, and estimate friction and fracture conditions that control rupture process.
My work combines a range of different techniques in structural geology and petrology to understand how subduction zones and domains of continental collision develop.
My goal is to understand the structure and dynamics in the solid Earth based on microscopic elementary processes in rocks.
We study 1) structure, property, and dynamics of the Earth’s interior and 2) the formation and evolution of our planet, based on ultrahigh pressure and temperature experiments using laser-heated diamond-anvil cell.
Associate Professor
We often uses numerical modeling and simulations to describe observed phenomena with underlying basic elements. We have been recently successful in development of a simple model that can describe a wide variety of slow earthquake phenomena.
I investigate how solid Earth and planets evolved into their current states through field geology, geochronology, and geochemistry. Specific themes are: The origin and growth history of the continental crust. Early Earth evolution. Planetary accretion and chemical differentiation. Development of analytical techniques for trace elements and isotopes.
What is happening deep within the Earth, and specifically beneath the Japanese islands? Can we understand, predict, and utilize these processes? The answers lie in the multifaceted observation and analysis of rocks. Integrating field geology, chemical analysis, hydrothermal experiments, numerical simulations, and machine learning, I aim to unravel the complex coupling of reaction, fluid flow, and fracturing within the crust.
How is the Earth’s interior? How has the Earth evolved? In order to answer these questions we study the Earth’s deep interior. Analyzing observed seismic waveforms on the surface, we infer seismological structure (three-dimensional perturbation of density and seismic velocity) in the Earth.
I study plate subduction zone dynamics and global Earth deformation from both theoretical and observational perspectives, utilizing geodetic data such as tectonic movements and gravity.
Assistant Professor
Computer simulations of low-viscosity Earth-type dynamos. Origins of geomagnetic field time variations.